trek bike frame size

Unleash Your Inner Geek on a Bike

What Size Trek Bike Do I Need for My Height? Find Your Perfect Fit!

Shahed Parvej

As an affiliate, we may earn a commission from qualifying purchases. We get commissions for purchases made through links on this website from Amazon and other third parties.

As an Amazon Associate, I earn from qualifying purchases.

The size of the Trek bike you need for your height depends on your specific measurements. To determine the correct size, you’ll need to measure your height and inseam.

Use an online sizing tool or refer to Trek’s bike size chart, which provides the appropriate frame size based on your height. If you fall between sizes, it’s recommended to choose the smaller size for a more comfortable and maneuverable ride.

Make sure to consider other factors such as your riding style and preferences when selecting the right Trek bike for you.

Trek Bike Size Guide

Choosing the right size Trek bike for your height is important to ensure a comfortable and efficient riding experience. Understanding Trek mountain bike sizing and road bike sizing can help you make an informed decision. Trek offers a wide range of sizes for their mountain bikes, including an XS size with increased standover height and an ML (medium-large) size.

For road bikes, you can use an online tool to determine the best size based on your height and inseam measurements. If you find yourself between sizes, it’s recommended to size down for a more aggressive riding position or size up for a more upright and comfortable riding position.

Remember to consider factors such as terrain, riding style, and personal preference when choosing the right size Trek bike for you.

How To Measure Your Height For A Trek Bike

Determining the right size Trek bike for your height is crucial to ensure a comfortable and enjoyable riding experience. To measure your height for a Trek bike, refer to the women’s mountain bike size chart. This chart provides sizing conversion and specific frame sizes for different rider heights.

Trek offers various models such as the Trek 820, Trek FX 1, Trek Domane, Trek Madone, Trek Émonda, Trek Marlin, and Trek Slash. Each model has different frame sizes suitable for different heights. Measure your height accurately and match it with the corresponding frame size on the chart.

By doing so, you can find the perfect fit and optimize your comfort and performance on a Trek bike. Whether you’re a casual rider or a seasoned cyclist, getting the right size bike is essential for a pleasurable riding experience.

Trek Hybrid Bike Sizing Guide

When it comes to determining the right size Trek bike for your height, it’s important to refer to the Trek Hybrid Bike Sizing Guide. This guide provides information on the recommended Trek frame size for different rider heights. For someone with a height range of 4’10” – 5’1″, the recommended frame size is 13 inches.

If you fall within the height range of 5’0″ – 5’6″, a frame size of 15 inches is suggested. The recommended frame size for a height range of 5’4″ – 5’10” is 17. 5 inches, and for those with a height range of 5’8″ – 6’2″, the suggested frame size is 20 inches.

By following this guide, you can ensure that you choose the right size Trek hybrid bike for your height.

Credit: www.leisurelakesbikes.com

Fit & Sizing Tips For Trek Bikes

Finding the right size Trek bike for your height is crucial for a comfortable and enjoyable riding experience. Trek offers a wide range of mountain bike sizes, including XS with increased standover height and ML (medium-large), to ensure a perfect fit for all riders.

To determine the correct size for you, use Trek’s bike size finder tool, which requires you to measure your height and inseam. If you fall between sizes, it’s recommended to choose the smaller size for a more nimble and maneuverable ride.

Remember, proper fit and sizing are important factors in maintaining good posture, maximizing power transfer, and preventing injuries. By following these fit and sizing tips for Trek bikes, you can ensure a smooth and enjoyable ride every time.

Frequently Asked Questions For What Size Trek Bike Do I Need For My Height

How tall of a bike do i need for my height.

To determine the right bike size for your height, refer to the Trek Bike Sizing Guide. It provides specific frame sizes based on your height range.

What Size Is An 18.5 Trek?

The size of an 18. 5 Trek bike is 20 inches. (9 words)

What Height Is A 26 Inch Bike For?

A 26-inch bike is suitable for individuals with a height range between 5’4″ to 5’10”.

To ensure a comfortable and enjoyable biking experience, it’s crucial to find the right size Trek bike that suits your height. Trek offers a variety of frame sizes to cater to different riders, allowing for a more customized fit. Taking into account your height and inseam measurements, you can use the online tools provided by Trek to determine the ideal size for you.

It’s important to remember that the sizing recommendations provided by Trek are a general guideline, and personal preference also plays a role. Factors such as riding style, flexibility, and intended use should also be considered when selecting the right size bike.

By choosing the correctly sized Trek bike, you can enhance your cycling performance and reduce the risk of discomfort or injury. So, take the time to find the perfect fit and enjoy your biking adventures to the fullest!

About the author

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

Latest Posts

Discover the Ultimate Best Bike Brake in 2024 for Unbeatable Cycling Performance

As an Amazon Associate, I earn from qualifying purchases.Looking for the best bike brake in 2024? The shimano xtr m9100 disc brake offers top-notch performance, reliability, and precision, making it a standout choice for cyclists.   The importance of a reliable bike brake cannot be overstated, especially when it comes to ensuring safety on the…

Can You Put 27 5 Wheels On A 29Er: Unveiling the Ultimate Upgrade

As an Amazon Associate, I earn from qualifying purchases.Yes, you can put 27.5 wheels on a 29er bicycle as long as the frame and brakes allow for the smaller wheel size. Swapping to smaller wheels can improve agility and maneuverability on rough terrain.   It’s essential to consider the impact on the bike’s geometry, bottom…

What is a Wet Bike

As an Amazon Associate, I earn from qualifying purchases.A Wet Bike is a planing motorized watercraft that combines the features of a motorcycle and a jet ski. It is propelled by pump jets, similar to other personal watercraft. The original Wetbike was introduced by Spirit Marine and marketed as a “water motorcycle” with the thrill…

• More Networks

Bike Size Charts – For Men, Women & Kids

Understanding what size bike you need can be tricky, and if you don’t know where to start, it can feel like trying to navigate a maze.

There are multiple frame sizes to consider, and sizing methods differ based on your riding style and preferred manufacturer.

But finding the right bike size is actually easier than it seems!

We’ve created this guide to simplify and demystify the process , answering any questions you might have.

Our bike sizing guide has already been read 10 million times , proving its effectiveness and helping riders like you make informed decisions. Join the millions who’ve found their perfect fit.

By the end, you’ll have a much clearer understanding of how to choose the perfect bike size for your needs.

Please read: Google killed this Bike Size page!

Why Trust Us?

How to get the right bike size, sizing by bike types, mountain bike size chart, road bike size chart, hybrid bike size chart, kids’ & junior’s bike size charts, how to know if a bike fits you well, frequently asked questions.

Why should you trust our bike sizing guide?

It’s simple: 10 million readers can’t be wrong. See for yourself:

Our guide has not only been read by millions trying to find their ideal bike size, but we’ve also directly assisted over 1000 individuals find their perfect fit in the comments.

With years of experience both as cyclists and helping others find their way in the cycling world, our bicycle sizing insights and tips come from real-life experience.

If you still have questions or need further guidance after reading the bike frame size charts below, feel free to reach out in the comments and we’ll help you find the perfect bike size for your height.

Choosing the right bike size is essential for comfort, efficiency, and preventing injuries.

While test riding a bike is the ideal way to gauge fit, it’s not always practical, especially with the often better deals found online compared to local bike shops.

The good news is, you DON’T NEED TO test ride a bike to ensure a good fit. 

If you know your height and inseam length, you can get the right size by using a bike size chart.

However, this is where things get slightly more complex.

Bike manufacturers may use different sizing standards, such as centimeters and inches, or sizing labels such as S, M, L, XL. Sizing methods also differ based on bike types—road, mountain, and hybrid bikes are not sized in the same way.

If you’re starting to feel overwhelmed, don’t worry. Keep reading below and we’ll make things a lot clearer.

Should You Trust S, M, L, XL Bike Size Labels?

Many manufacturers also use size labels such as XS, S, M, L, and XL. These labels are becoming more common because they simplify things, but they can sometimes be vague and misleading.

Due to the lack of standardization across brands and bike types, you should avoid relying only on bike size labels when choosing the right size. Their dimensions may vary from one brand to another.

Letter-based size labels offer a good starting point but should be cross-checked with other methods.

For example, an L-sized Trek road bike may have a 56 cm seat tube length, while a Giant’s L-sized road bike may have a 58 cm seat tube length.

Therefore, you can use these labels as a rough guide, but make sure to also refer to a bike type-specific size chart (such as the ones below) or the manufacturer’s sizing chart for the specific model you’re interested in.

What and How to Measure?

To be able to use a bike frame size chart and correctly size a bike, you need to know two measurements: height and inseam (inside leg) length.

Why does inseam length matter?

The inseam length is important to ensure you get a bike with an appropriate standover height. This is the distance from the ground to the top of the bike’s top tube.

Ideally, to prevent injury and improve comfort, there should be a one-to-two-inch clearance between your crotch and the top tube when standing over the bike.

What you’ll need:

• A tape measure
• 30 seconds of your time

Measuring your height  is super simple. All you need to do is:

• Stand straight against a wall with your feet together.
• Place a book on top of your head, making sure it’s horizontal with the floor.
• Measure the distance from the ground to the point where the book and the wall meet.

Measuring your inseam is even simpler:

• Just stand against a wall with your shoes off and feet hip-width apart.
• Measure the distance from the ground to your crotch.
• That’s it!

With these two measurements written down, you’re pretty much all set to find the perfect bike size for your height and inseam.

Adult Bikes Are Sized by the Frame

Adult bikes are primarily sized by the frame; or to be more specific, they are sized by the seat tube length .

This is the vertical distance from the center of the pedal axle (the bottom bracket) to the top of the seat tube—it’s often listed in measurements like 52 cm, 54 cm, 56 cm , or 17 inches, 19 inches, 21 inches .

While this measurement is a good starting point, it doesn’t tell us all that we need to know—it determines the height of the bike, but not its length, also known as reach.

Why Does Reach Matter?

To really dial the fit, you should also consider the bike’s reach , which refers to the horizontal distance between the bottom bracket and the head tube.

Reach tells you how far you have to stretch to reach the handlebars and is especially useful if you’re in between two sizes.

A shorter reach means you’ll be sitting more upright when you’re riding—perfect for comfort on longer rides.

A longer reach means you’ll be more stretched out on the bike—ideal if speed and aerodynamics are your priorities.

Men’s vs. Women’s Bike Sizing

In adult bike sizing, the distinction between men’s and women’s bikes often comes down to marketing rather than significant sizing and design differences.

Therefore, the bike frame size charts below are suitable for all riders , regardless of gender.

Even though some brands offer models specifically labeled for men or women, and a few brands manufacture women’s bikes only (such as Liv or Juliana), the differences compared to unisex bikes are miniscule.

Men’s and women’s bike sizes are largely similar, with only minor differences driven by marketing. Most bikes are unisex!

These often include slightly different proportions between the bike’s stack (vertical height) and reach (horizontal length), which are negligible unless you’re a professional rider.

For example, women’s models might have a shorter reach compared to the stack to accommodate what some manufacturers perceive as average body proportions.

However, as body types differ among individuals, a women-specific bike might not automatically provide a better fit for every woman. Similarly, some men might find that a women-specific model fits them better than a men’s or unisex model.

Kids’ Bike Sizing: Sized by Wheel Diameter

Unlike adult bikes which are measured by frame size, kids’ bikes are determined by wheel size , simplifying the selection process.

Wheel diameters on kids’ bikes typically range from 12 inches to 26 inches , increasing in two-inch increments. This means that a 12-inch kids’ bike has 12″ wheels, a 14-inch bike has 14″ wheels, and so on.

Manufacturers then use these wheel size measurements to provide size recommendations based on a child’s age, inseam length, or height.

For example, a 12-inch bike might be suggested for children ages 3 to 5, with specific height or inseam measurements to further dial the best fit.

Many manufacturers provide additional information such as standover height and min/max seat height , which allows parents to get a better fit by relying on the inseam length measurement.

While wheel diameter and age can give a general idea of the right bike size, incorporating inseam length in the equation is advisable for the perfect fit.

While most adult bikes are sized by the frame, specifically by the seat tube length, sizing standards can differ slightly based on bike types.

For example, road bikes are typically measured in centimeters (cm), mountain bikes are measured in inches (in), while hybrid bikes may use either of the two.

Therefore, finding the ideal fit means you should be checking out bike type-specific sizing charts for road, mountain, and hybrid bikes, such as the ones below!

In recent years, mountain bike manufacturers have moved away from the traditional method of sizing bikes by inches and seat tube lengths.

Nowadays, a more intuitive system using size labels such as S, M, L, and XL is in use, prompted by more radical modern frame designs and geometries.

In addition to that, most brands also provide detailed geometry charts where you can find important measurements such as stack, reach, tube angles, wheelbase, and so on.

Our mountain bike size chart below is a great starting point.

26-Inch vs. 27.5-Inch vs. 29-Inch Wheels

Modern mountain bikes typically come with 27.5-inch or 29-inch wheels, whereas 26-inch wheels are mostly reserved for fat-tire bikes.

The choice of wheel size directly influences the bike’s handling and performance—smaller wheels improve handling and maneuverability, whereas larger wheels enhance speed and obstacle rollover ability.

However, when considering the right fit for a mountain bike, the impact of wheel sizes is limited and more nuanced.

In general, wheel sizes should not be used as a way to gauge the right fit of a mountain bike, even though it can affect the riding experience by changing the geometry of the bike.

Wheel size is crucial for riding performance, but not as important for sizing adult bikes.

For shorter riders, smaller wheels can improve the feeling of maneuverability and control, improving the riding experience. Smaller wheels also lower the standover height, which has a positive effect on comfort and safety.

Conversely, taller riders may prefer larger 29-inch wheels for smoother handling and the ability to maintain momentum.

This is why many manufacturers often align wheel sizes with frame sizes—smaller frames come with 27.5-inch wheels, whereas larger frames come with 29-inch wheels.

What If You’re Between Two Sizes?

If you find that you’re between two sizes on our mountain bike frame size chart, there are a few things you should consider to be able to choose correctly.

• Riding style: Size up if you’re an aggressive rider or size down if you’re more timid in your approach.
• Stability vs. maneuverability: If you prioritize stability, size up; but if you prioritize maneuverability, size down.
• Approaching obstacles: If you prefer taking the harder line and going over obstacles rather than around them, size up. Otherwise, size down.
• Ape index: If your wingspan is longer than your height, size up; otherwise, size down.
• Experience and flexibility: If you are an experienced rider and have a flexible body, feel free to size up. Otherwise, size down to feel more confident.

Road bikes are typically sized in centimeters by measuring seat tube length. Most manufacturers also use the letter-based size labels.

However, with the introduction of modern frame geometries with sloping top tubes, it’s a good idea to also consider more advanced geometry measurements, such as stack and reach.

This approach offers a more precise fit, ensuring optimal performance and comfort on the road.

Below, our road bike size chart offers the perfect starting place to pinpoint your ideal frame size.

Note: This chart can also be used to find the right gravel and cyclocross bike size due to their similarity to road bikes.

If you’re between two sizes on our road bike size chart above, you’ll want to consider these factors before making the final choice:

• Riding for speed:  If you prefer faster and shorter rides and races (such as crits), choose a smaller frame.
• Riding for endurance: If you prefer long-distance riding, such as gran fondos or audaxes, choose a bigger frame.
• Ape index:  If your wingspan is longer than your height, choose a bigger frame. Otherwise, choose a smaller frame.
• Riding position:  If you prefer being more upright when riding, choose a smaller frame. Otherwise, choose a bigger frame for more aerodynamics.
• Weight and stiffness: If you want a bike that feels stiffer and lighter (e.g. for sprinting), choose a smaller frame.

Hybrid bikes blend the characteristics of road and mountain bikes, prioritizing comfort, practicality, and versatility.

Most manufacturers size hybrid bikes (including commuting and fitness bikes) using the letter-based approach (S, M, L, XL).

This makes it easy to find the right size, especially considering the fact these bikes are used for recreation and commuting, rather for performance.

Choose your ideal hybrid bike size from the chart below.

If you’re between two sizes on our chart above, here are a few things to consider:

• Ape index: If your wingspan is longer than your height, choose the larger frame size.
• Riding style: If you plan to ride for leisure or commuting, a larger frame might offer a more relaxed posture. For more sporty fitness riding, a smaller frame will provide better control and handling.
• Standover height: Make sure your inseam length is at least 1-2 inches longer than the standover height on the frame size you’re considering.

As we’ve already mentioned briefly above, kids’ bikes are sized by the wheel diameter. This makes choosing the right size a lot more straightforward.

Check out our kids’ bike size chart below to get a general idea of which sizes to consider for your child.

But remember, for the best fit, it’s a good idea to measure your child’s inseam and compare it to the bike’s standover height and seat height range.

Finding the right bike size using a sizing chart is pretty straightforward and a great start.

But how do you know if your bike actually fits you perfectly?

Here’s a quick checklist to help you easily determine if your bike fits you well.

• Standover height:  If the bike fits you well, there should be 1-2 inches of space between your crotch and the bike’s top tube. This is especially important on bikes with a horizontal top tube design. To check, stand over the bike with your feet flat on the ground and pull the handlebars up. If the front wheel can come up 1-2 inches, you’re good to go.
• Saddle height: With your foot on the pedal at its lowest point (6 o’clock), your leg should have only a slight bend in the knee. A good fit shouldn’t require the saddle to be at its maximum or minimum height setting for you to achieve this.
• Reach:  How does it feel holding the handlebars while sitting on the saddle and riding? If you feel the handlebars are too far away and you need to stretch to reach them, the bike is likely too big. However, if you feel cramped and constrained with a rounded back and shoulders, you should probably size up.
• Overall comfort:  Do you feel comfortable and confident while riding the bike? If the bike fits well, you should be able to handle and maneuver it with ease, especially when cornering and accelerating on the pedals.
• Knee position:  Finally, if the bike fits you well, your knee should not be hitting the handlebars when pedaling. Also, the front of your foot should not be hitting the front wheel when turning the handlebars. If this happens, you need to size up.

Why sizing varies among manufacturers?

Sizing varies among manufacturers because they take different approaches to frame design, geometry, and tube measurements and angles. Brands also target different audiences and intended uses, all of which leads to sizing variations. That's why similarly sized bikes might fit riders of different heights.

What size push bike do I need?

Push bikes are typically sold with 10" - 14" wheels. A 10-inch push bike will usually fit kids aged 18 months to 2 years; a 12-inch push bike will fit kids aged 2-4 years; while a 14" push bike will typically fit kids aged 3-5 years old. These are just general recommendations—for the best fit, consider your child's inseam length.

What size bike do I need for my height?

To find out what size bike you need for your height, you should consult a sizing chart for the type of bike you're interested in, such as road, mountain, or hybrid. Depending on the type, bike size charts will match your height to a corresponding frame size denoted in centimeters, inches, or general sizes (XS, S, M, L, XL).

Is a 26-inch bike for adults?

A 26-inch bike can be suitable both for adults and for kids, depending on the context. Kids' 26-inch bikes are suitable for teenagers and shorter adults. However, some adult bikes, such as touring bikes, fat bikes or electric bikes, also come with 26-inch wheels, but these have larger frames and are not suitable for children.

What height is a 26-inch bike good for?

A kids' 26-inch bike (a bike with 26-inch wheels) is typically suitable for teenagers and shorter adults who are around 5'0" to 5'3" tall. However, bikes for adults with 26-inch wheels, such as fat bikes or some electric bikes, are often available in a few frame sizes and might fit adults who are 6 feet in height and taller.

How do I know if a bike is too big or too small?

A bike is considered too big if you cannot stand over the frame with both feet flat on the ground without the top tube touching your crotch, or if you have to stretch too far forward to reach the handlebars. Conversely, it's considered too small if you feel cramped when riding, can't adjust the seat high enough, or your knees hit the handlebars when pedaling.

___ Inch bike for what size person?

To determine which bike size is suitable for a particular height range, consult a specialized bike size chart for the bike type you're interested in, such as our road, mountain, and hybrid size charts above. These charts match rider heights with appropriate bike sizes, allowing you to get a proper fit.

Related Topics:

Google’s HCU Destroyed Our Site: Bicycle Guider Is Now Fighting for Survival

Top Dutch Bikes of 2024: A Comprehensive Buying Guide to Help You Choose

360+ Coolest Bike Names: Creative Ideas for All Bike Types

1,983 thoughts on “ bike size charts – for men, women & kids ”.

This blog post hit all the right notes!

It’s always a joy to stumble upon content that genuinely makes an impact and leaves you feeling inspired. Keep up the great work!

Thank you for the amazing blog post!

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Trek Bikes Size Guide

Need to know what frame size you need for your next Trek bike? Checkout the sizing chart below:

To view the latest Trek Bikes:  click here.

This chart use measurements suggested by Trek Bikes:

• Trek Remedy Size Guide Chart
• Trek Slash Size Guide Chart
• Trek Fuel EX Size Guide Chart            
• Trek Rail Size Guide Chart
• Trek Fuel EXE Size Guide Chart
• Trek Powerfly Size Guide Chart
• Trek Top Fuel Size Guide Chart
• Trek Proclaimer Size Guide Chart
• Trek Supercaliber Size Guide Chart
• Trek X-Caliber Size Guide Chart
• Trek Allant+ Size Guide Chart

 For further advice about sizing  please contact us using the form below

• "I purchased my first EMTB from MTB Monster in December, having taken advice from people I found the Cube bike I was looking for in their store. From the first phone call through to collection the staff who ever answered the phone were polite, professional, knowledgeable…." Nigel January 2024 (Google Review)
• "Bought my new Trek from MTB Monster online. Went into the showroom previous to this and the staff were friendly and helpful. Real good quality service from point of order to picking my bike up… On collection the bike was ready and looking good and the guy ran me through all I needed to know and answered my questions." Daniel May 2023 (Google Review)
• "Ordered a Cube reaction electric mountain bike from MTB Monster, Excellent service from them. Great price for the bike, communication was brilliant and it came quickly and very well packaged. Would recommend to anyone. Thanks." Arty October 2023 (Trust Pilot)
• "Couldn't be happier with the sales service from MTB Monster when buying a new bike online recently. They were quick and helpful to in answering questions about the bike, and the sales, comms and shipping process were super smooth and reassuring. Would definitely buy again and recommend to others." Russ January 2024 (Google Review)

Connect with us on social media

Bike Frame Size Chart

Trek Bike Size Charts

By bicycle type:

Trek Mountain Bike Size Chart

• Trek Road Bike Size Chart

Trek Hybrid Bike Size Chart

By bicycle model:

• Speed Concept
• Supercaliber

These charts are based upon official Trek website sizing guide for hybrid & city, MTB and road bicycles. Take the charts below as a general guide and check the sizing calculator on the Trek's website for official results.

The Trek bike size chart, taking into account both height and inseam measurements, offers cyclists a comprehensive guide to selecting the perfect bike size for their body proportions. By considering both of these factors, riders can ensure an optimal fit and maximize their comfort and performance on the bike. Height and inseam helps determine the frame size. This chart enables cyclists to find the ideal frame size, for a comfortable riding position. With the Trek bike size chart by height and inseam chart, cyclists can confidently choose a bike that suits their body measurements and enhances their cycling experience.

Most important difference in mtb frames is the frame full suspension or hardtail. Trek offers bikes from both categories and have even more mtb bike types to offer.

Trek Road Bike Sizing

Trek road bicycles are being made in four different categories, depending on the riders needs. Aero road bikes have excellent aerodynamics and they are the choice for riders who are looking for speed and performance. Lightweight road bikes are excellent climbers and all-around bicycles. Endurance road bikes are built for those riders who spend a lot of time in the saddle, their intended use is to make riders as much as comfortable as possible during the long hours of riding. Gravel road bikes are for use on gravel and dirt roads.

Hybrid, as name states, brings a mixture of a road bike and mountain bike. They tend to have narrower tires than mountain bike and usually they have a front suspension (but sometimes comes with rigid fork too). Hybrid frames falls into the specific category between road and mtb bikes. They never come with drop bar, which differs them from road bicycles. They are ok choice for commuting and excellent one for casual fitness riders.

City bikes, as their name say, are intended for urban use on paved, asphalted roads. Main use is for transport and not for recreational riding.

Trek Domane Size Chart

Trek madone size chart, trek emonda size chart, trek checkpoint size chart, trek speed concept size chart, trek marlin size chart.

For models: Marlin 2, Marlin 4, Marlin 5, Marlin 6, Marlin 7 and Marlin 8

Trek Supercaliber Size Chart

Trek slash size chart, trek dual sport size chart.

For models: Dual Sport 1, Dual Sport 2 and Dual Sport 3

Trek FX Size Chart

For models: FX 1, FX 1 Stagger, FX 1 Disc, FX 1 Disc Stagger, FX 2 Disc, FX 1 Disc Stagger, FX 3 Disc, FX 3 Disc Stagger, FX Sport 4, FX Sport 5, FX Sport 6, 7.1 FX, 7.2 FX, 7.3 FX and 7.4 FX

• MAGAZINE OFFERS
• BIKE INSURANCE
• Best Products
• Maintenance
• Accessories
• Long-Term Reviews
• First Look Friday
• Bike of the Week
• Tech Features
• Routes and Rides
• Bike Galleries
• BikeRadar Bargains
• Buyer's Guides
• Fitness & Training
• Sizing & Fit
• Mountain Biking UK
• Cycling Plus
• BikeRadar Podcast

How to measure a bike frame: our complete guide to sizing a bike

Fundamental measurements so you can compare frames like-for-like

Simon Bromley / Immediate Media

Paul Norman

If you’re thinking of buying a new bike, or a first bike, understanding the key measurements that define your frame is important to ensure you get a machine that fits you and works for the type of riding you intend to do.

And if you’re planning to rent a bike, it’s useful to know your frame’s key measurements, so you can make sure your rental will be comfortable to ride and can be adjusted to fit.

Not all manufacturers measure frame sizes in the same way, so you need to look at a few fundamental measurements to ensure you’re comparing apples with apples.

Read on to find out how to size up your road bike or mountain bike frame to ensure you get the right bike fit . Also check out our comprehensive guide to mountain bike geometry , which tells you how these measures affect handling; even if you’re a roadie, most of the measurements are still as significant.

We’ve also got advice on how to choose the right size frame for road bikes and mountain bikes and specific advice for choosing a women’s bike .

Bike geometry measurements

We’ll tell you below how to measure the key numbers that define your bike. But first, here’s a quick rundown of those numbers:

• Top tube length: the horizontal distance between the centreline of the head tube and seatpost
• Seat tube length: the distance between the centre of the bottom bracket and the top of the seat tube
• Reach: the distance between the bottom bracket and the top of the head tube
• Stack: the vertical distance between the bottom bracket and the top of the head tube
• Wheelbase: the distance between the front and rear axles
• Chainstay length: the distance between the bottom bracket and rear dropout 
• Front centre: the distance from the bottom bracket to the front axle 
• Seat tube angle: the angle of the seat tube in relation to the ground
• Head tube angle: the angle of the head tube in relation to the ground 
• Bottom bracket drop: the difference between the height of the wheel axle and crank axle
• Bottom bracket height: the distance from the ground to the bottom bracket

What you’ll need to measure a bike frame

To measure a bike frame you will need four tools:

• A tape measure
• A clinometer to measure angles (there are free smartphone apps you can download)
• A long spirit level (or you can use the clinometer app and a straight piece of wood)
• A plumb line (or you can improvise with string and a couple of blobs of Blu Tack)

Most bikes, whether road or mountain, are now measured in metric units, but you may find some manufacturers that still size mountain bikes in inches. Some brands, such as Moots, even mix the two.

We highly recommend you stick to metric units to keep things consistent. If you really must, you can always divide centimetres by 2.54 to switch to inches.

You will usually be able to find a geometry chart for all sizes of a current frameset on a maker’s site. If your bike is still a current model, it’s worth taking a copy of this because it will be more accurate than your measurements and likely a handy reference down the line.

How to measure top tube length

Once, bikes all had horizontal top tubes. Now many bikes’ top tubes will have a slope.

If you look at a bike geometry table, it will usually include the real top tube length. But for a consistent measure, regardless of the top tube angle, you need to measure the horizontal top tube length, called the effective top tube length or virtual top tube in many geo charts.

That’s the horizontal distance between the centreline of the head tube and the centreline of the seatpost. Measuring it correctly will mean using your spirit level or the clinometer app, to ensure your measure is really horizontal.

Many manufacturers size road bikes by top tube length. That’s not true of mountain bikes, where the frame size is usually marked S, M, L, etc. That’s a system used for some road bikes too: Merida’s road bikes go through S, S/M, M/L and L.

Of course, this measurement is up to each brand's interpretation – Ridley’s size-S frames have a top tube of around 54cm, which is equivalent to many brands’ size-medium frames.

It’s worth noting that not all brands measure virtual top tube length in the same way either.

Colnago, for example, records the horizontal distance from the head tube to a vertical projected up from the top of the seat tube, so it doesn’t take account of the further backward projection of the seatpost and its numbers will come out smaller than other makers’. A 50s Colnago is equivalent to a 54cm top tube.

How to measure seat tube length

Seat tube length is the straight-line distance between the centre of the bottom bracket and the top of the seat tube.

Again, it’s trickier than it sounds: some bikes such as the Trek Madone have a considerable extension of the seat tube above the top tube junction, while others use a seatmast, so it’s difficult to compare with an alternative’s dimensions.

Plus, mountain bikes in particular often have a kink in the seat tube, so you don’t want to follow the line of the tube itself, which will be longer.

Line up your straight edge with the bottom bracket centre and the top of the seat tube and measure along this, if you’re not sure you’re following the right line.

How to measure reach and stack

So we’ve seen that top tube and seat tube lengths are a bit of a minefield if you want to compare frames. For more consistency, most manufacturers will now show reach and stack values for their bikes.

These have the advantage of being independent of frame design and measure the perpendicular distances between two key contact points: the bottom bracket and the top of the head tube.

We’ve published a more detailed explanation of why reach and stack are important here .

In brief, the reach is the horizontal distance between the two. To measure it, you’ll need your spirit level again.

Attach a plumb line to the end of the level. If you’re using Blu Tack, make sure the blob at the end of the string is fairly symmetric and your string hangs down straight, otherwise your measure may be off.

Align the top edge of the level with the centreline of the top of the head tube. Then move the level back and forward until the plumb line intersects with the centre of the bottom bracket spindle. Now just measure the distance between the top of the plumb line and the head tube and you’ve got your reach.

Another option is to push your bike up against a wall, measure the distance to the top of the head tube and the distance to the bottom bracket, then subtract one from the other. You’ll still need to make sure your measurement is horizontal though.

The stack is the vertical distance between the bottom bracket and the top of the head tube. So once you’re set up to record your reach, you should also be able to measure your stack, following the plumb line.

An alternative method is to measure the vertical distance from the ground to the top of your head tube, then measure the height of your bottom bracket from the ground and subtract this.

Both reach and stack are quite fiddly to capture. You’ll probably need a second pair of hands if you use the plumb line method and it’s worth repeating to ensure you’re consistent.

How to measure wheelbase

Your frame’s wheelbase is the distance between the front and rear axles. It’s a key determinant of a frame’s ride quality and will vary with frame size too.

It’s fairly easy to measure, although you need to set the fork straight ahead or your measurement will be incorrect.

Like reach and stack, it’s worth repeating the measurement several times to make sure you get the same number. Accuracy will also be increased if you measure the wheelbase on both sides of the bike and take the average because this will compensate if the fork is not quite straight.

How to measure chainstay length

Chainstay length is one of the two components that make up your wheelbase and, again, contributes significantly to your frame’s handling characteristics. A frame with shorter chainstays will typically feel more lively than one where the stays are longer.

The chainstay length is the straight-line distance between the centre of the bottom bracket axle and the centre of the rear dropout, so it’s fairly easy to measure with a ruler.

How to measure front centre

The other component of the wheelbase is the front centre. That’s the equivalent of the chainstay length but measured from the axle to the front dropout.

Again, it affects handling, as well as toe overlap with the front wheel. It’s not often quoted by bike makers, but BMC, for example, shows it on its geometry charts.

Note that the wheelbase is not the sum of the chainstay length and the front centre, because neither of these is measured horizontally.

How to measure seat tube and head tube angles

The seat tube and head tube angles are two of the most important factors in determining handling, with more upright tube angles typically leading to more nimble handling. Your clinometer app will come in useful here.

If you’ve got a straight seat tube, you can measure the seat tube angle by lining up your smartphone and reading the number from the clinometer app. Make sure your bike is vertical and standing on a horizontal surface for an accurate reading.

If there’s a kink in your seat tube, you’ll need to use a straight edge to follow the line between the bottom bracket shell and the top of the seat tube, then line up the phone with this.

Most newer bikes will have tapered head tubes, so the angle of the front of the head tube will not be the same as the angle of its centreline.

You can get close to the latter by holding your phone at the angle of the centreline, or by using a straight edge to line up with the centres of the top and bottom of the head tube.

If you have straight fork legs, without an angle at their crown, the angle of the legs will be the same as the head tube angle, so you can measure this instead. Again, it’s important to have the bike standing vertically.

You can also measure head tube angle by lining up the clinometer with the steerer extension above the head tube.

How to measure bottom bracket drop

The bottom bracket drop is the difference between the height of the wheel axles and the centreline of the crank axle.

You can measure it by finding the height of the rear axle and the height of the bottom bracket, then subtracting one from the other. It’s another key measurement quoted by bike brands on their geo charts.

How to measure bottom bracket height

Finally, the bottom bracket height is the distance from the ground to the centre of the bottom bracket shell. So that’s quite easy to measure, although be careful to keep your bike straight upright for an accurate reading.

Unlike bottom bracket drop, it will be affected (slightly) by your tyres too, so inflate them to your usual running pressure.

Now you’ve got all the measurements you need to size up your frame, and help with any purchasing decisions in the future, whether that's a new or second-hand road bike, commuting bike or gravel bike . Keep your numbers somewhere safe though: you don’t want to have to repeat the process.

Share this article

You may also like

Bikeradar newsfeed, best gravel bikes in 2024 | top-rated carbon, aluminium, titanium and steel gravel bikes reviewed, the evolution of mountain bikes in two decades | how have trail bikes changed from 2005 to 2023, best bike: our buyer's guide to which bicycle type you should buy in 2024, the ultimate guide to bike geometry and handling.

• Terms & Conditions
• Subscribe to our magazines
• Manage preferences

• As it happened - Vuelta a España stage 4

What size bike do I need? A comprehensive bike size guide

How to decode a geometry chart to find the right size bike for you

Head tube angle

Seat tube angle.

The most crucial factor when buying a bike is to make sure the frame fits. Just like how you might wear a size 10 shoe in Nike and a 10.5 in Adidas, there is no standardisation when it comes to bike frames, and sizing can vary drastically from brand to brand. Worse, trying to decode a geometry chart for some can be as hard as wrapping their heads around quantum physics.

While minor adjustments can be made with stem length and saddle setback, ultimately if a bike frame is too big or small, the amount of available adjustment won't be great enough, and it will influence the bike's handling characteristics as well as cause issues when it comes to comfort. This is especially true when riding one of the best road bikes because you will essentially maintain that same position for the duration of the ride, and if it’s wrong, you’re in for many hours of pain — the bad kind, that is.

What makes things even more complicated is that people are built differently; some people have short torsos and long legs, while others have a long torso and short legs. This means two people who are the same height might not fit on the same bike.

While we can’t offer a specific chart that will tell you exactly what size frame will be perfect for the dimensions of your body, what we can do is help to demystify the numbers on the geometry chart and show you how to use them to figure out the right size for you.

Luckily, the components on a bike do allow for a little bit of leeway. Saddles usually have around 7cm of fore-aft adjustability, stems can be swapped for shorter or longer versions with shallower or steeper angles that raise or lower the handlebars, and most of the best road handlebars can be bought in a choice of around five different widths. Cranks can be swapped for shorter or longer lengths, many seatposts are available in a couple of shapes that adjust their bend, known as 'layback', and some bikes even come with flip chips that adjust the geometry. 

However, don't think that gives you a free ride when deciding which size bike you need. Just like how a house with poor foundations will fall, if your bike's foundation - the frame - is incorrect, you're setting yourself up for a bad time. 

Bike geometry

You can trust Cyclingnews Our experts spend countless hours testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test.

A geometry chart comprises measurements of almost everything to do with the frame. Some of these numbers are extremely helpful in gauging whether a frame will fit your body or not, while others can be ignored entirely. Here's a rundown of the important numbers, and what they mean. 

Top tube length and effective top tube length

When we request bikes in for review, the first figure we look at is the top tube length or, more often, the effective top tube length. This is the length from the head tube to the seat tube and is the measurement most brands base their sizing around. 

The top tube and effective top tube length can differ because of the modern compact or semi-compact geometry bikes. Old school road bikes see a completely horizontal top tube, while the top tube on most modern bikes slopes downward. This can increase the length of the physical section of tubing but does not increase the actual distance between the head- and seat tubes.

The top tube relates directly to your arm and torso length, and it is a figure that doesn’t leave a ton of leeway to be fixed. If you have a bike with a top tube that is too short or too long, small deficits can be remedied with a new stem of different length. Realistically there is about 20mm of leeway shorter or longer than a stock road bike stem, any longer or shorter, and you will drastically change the handling characteristics of your bike.

Reach is a slightly more difficult measurement to get your head around and refers to the horizontal distance from your bottom bracket to the top of the head tube.

If you were to draw a line from the centre of the bottom bracket straight up through the frame and one from the centre of the head tube back; 'reach' is the horizontal distance between the head tube and the vertical line.

Reach is the key measurement for mountain bikes as the majority of your time on the bike will be in a standing position, with your saddle well behind your body, making the length from the head tube to the seat tube somewhat irrelevant — because you’re not actually sitting on the seat.

For road riders, reach tells us exactly how far you have to ‘reach’ to grab the handlebars and is not subject to wonky measuring and sizing practices between brands. Because of this, it is one of the two key figures to determine how one bike compares to another.

For example, a Trek Emonda has a reach of 386mm in a size 54cm frame, a Specialized Tarmac SL7 has a reach of 387mm also in a size 54cm, and a Scott Addict RC has a reach of 389mm in size 54cm. While the difference is only a few millimetres, each one of these race bikes, which are supposed to be the same size, are actually a little bit different. 

Stack is the other key sizing figure which denotes the vertical distance between the bottom bracket and the centre of the head headtube — measured using the same imaginary line that we drew straight up out of the bottom bracket when we measured reach. 

The frame stack height measurement tells us how upright or aggressive a rider's position will be on the bike. Racers tend to prefer a shorter stack because it allows them to get their handlebars low to remain lower, more aerodynamic, and shift more weight over the front wheel for cornering. Endurance and beginner riders are usually better suited to taller stacks because it allows for a more upright, comfortable position. 

Small adjustments to the overall stack height can, of course, be made by using angled stems and spacers, but again, this is not unlimited.

For example, Cannondale’s endurance bike, the Synapse, has a frame stack of 570mm in size 54, while the SuperSix Evo race bike measures 554mm in the same size.

Other important measurements

When choosing the right size for you, the measurements above will be the go-to numbers, however, if you find yourself between sizes, or you want to choose between two similar-sized bikes from different manufacturers, the following measurements can help when it comes into the nuanced differences that will affect the ride feel, stability, handling and more. 

Seat tube length and standover height

Seat tube length is one of the more simple measurements on a bike and is the distance between the centre of the bottom bracket to the top of the seat tube (excluding the seatpost, which is adjustable, of course). 

In the olden days, bikes were sized based on their seat tube length because it was usually the same as the top tube length; this was before the introduction of sloping top tubes and compact frame geometries. While a select few brands, like De Rosa, still size their bikes based on seat tube length, most use the top tube length, if they haven’t opted for t-shirt style small/medium/large sizing. 

Seat tube length is still relevant, however, as it provides an insight into a bike's standover height. Too high a standover height, and your bike may leave you with a bruised undercarriage when you stop and climb off. There really isn’t such a thing as too low a standover height; modern mountain bikes are the perfect example of this. That said, as seat tube length and standover height are proportional to the rest of a bike’s geometry, it may signify the need for a bigger frame.

The head tube angle of a bike doesn’t actually tell us anything about the size of a bike, but instead provides an insight into its handling characteristics; although as with everything else, it's not the only determining factor. Fork rake, trail, stem length, handlebar width, chainstay length, and even BB height and drop all affect how a bike handles. 

A steeper head angle will be a higher number, offering sharper, more responsive handling, and delicate inputs can illicit mid-corner line changes. With the handling being so light, bikes with steep head angles can sometimes feel nervous at high speed. A slacker head angle (lower number), on the other hand, will be more stable, especially at speed, but will require a bit more gusto to change your line.

Race bikes generally see head tube angle between 72.5 and 73 degrees, endurance bikes are often between 70 and 72 degrees, and cyclocross bikes usually range from 70 to 71 degrees — of course, there are outliers in every category.

The seat tube angle is, you guessed it, the angle of the top of the seat tube, relative to the centre of the bottom bracket.

Usually, on smaller bikes, the seat tube angle will be a bit steeper as riders with shorter legs need to be closer to the BB than riders with longer legs.

On mountain bikes, seat tube angles have increased dramatically as the geometries have become more progressive to help riders maintain traction on steep and technical climbs. On the other hand, road bikes have remained relatively stable, clocking in around 74-degrees, give or take a few degrees depending on the size and style of bike. 

While the seat angle of a frame is set, adjustments can be made via a setback seat post or the fore and aft on the saddle rails. The position you’re shooting for is to have your knee directly above your pedal axle with the crank when your foot is at the three o’clock position.

Bike geometry comparison

One problem we face when buying a bike is that each brand lays out its geometry charts in a different way, and this makes comparing two bikes from two separate brands difficult. Expand that to five bikes from five brands and you can get lost in the numbers in no time. 

Thankfully, we clearly weren't alone in finding it a headache, as a few clever people have built tools that simplify bike geometry comparison. 

Our go-to choice is Geometry Geeks , where you can simply search for the bikes you wish to select, hit compare, and it will bring up a standardised table that allows you to easily see the differences between your chosen frames. Others such as Bike Insights and Velogic Fit provide a similar solution. 

So what does this all mean?

We have thrown quite a lot of general information at you here, and hopefully, you’re better equipped to decode the geometry chart of that new bike you’ve been lusting over.

But how do you take this information and figure out what size bike is right for you? Below is a basic size chart based on rider height to get you within the ballpark.

Bike size guides

Remember, that table is only providing a rough ballpark. To get a better idea of what size bike you need to choose, you should consult the size guides provided by the brand you're looking to buy. Online retailers like Competitive Cyclist, Jenson USA, and Bicycles Online also have pretty good sizing calculators that provide you with a decent starting point. However, even armed with this information, you should still only use it as a guide. The geometry charts are the true determiner of whether or not a bike will fit, and if so, how it will fit.

You will notice that we have only included effective top tube length in the sizing chart above, and have not included the t-shirt style sizing employed by some brands. This is because even among those that use small/medium/large to size their bikes, there is no standardisation. For example, a size M Giant TCR Advanced SL 0 Disc has an effective top tube length of 555mm while size M Ridley Helium SLX disc has a top tube length of 565mm — the size small has an effective top tube of 545mm. If you look at our basic size chart above, these fall into two different height categories. So if you are 5ft 9in tall, like this writer, you would ride a size M Giant and a size S Ridley.

The best way to find out if a bike fits is to go down to your local bike shop to try a few out and see what feels right. If possible, go and get a professional bike fit before you pull the trigger, or at the very least, get your local bike shop to help you choose the right size. 

If you want to maximise your comfort and efficiency, our bike fit guide explains all the areas that can be adjusted to improve your comfort. Alternatively, a professional bike fit on your own bike will help you to dial everything from your saddle height to how many spacers you need down to the millimetre. 

Now you've got the tools at your disposal, check out our guide to the best road bikes and pick the right bike for you.

Get The Leadout Newsletter

The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!

Based on the Gold Coast of Australia, Colin has written tech content for cycling publication for a decade. With hundreds of buyer's guides, reviews and how-tos published in Bike Radar, Cyclingnews, Bike Perfect and Cycling Weekly, as well as in numerous publications dedicated to his other passion, skiing. 

Colin was a key contributor to Cyclingnews between 2019 and 2021, during which time he helped build the site's tech coverage from the ground up. Nowadays he works full-time as the news and content editor of Flow MTB magazine. 

Vuelta a España tech gallery - Superlight paint, dinosaur names, and aero computer shrouds

Vuelta a España time trial tech gallery - Aero bar technology leaps to the next level

No.22 releases a 3D-printed titanium aero bike

Most Popular

How to Measure Bike Frame Size Trek

Last Updated on February 16, 2023 by tawhid

To measure bike frame size on a Trek, you need to know the size of the wheels and tires. You also need to know the distance from the ground to the top of the seat tube. With these two measurements, you can determine the frame size.

• To measure the frame size of a Trek bike, first identify the type of bike you have
• If you have a road bike, measure from the top of the seat tube to the center of the bottom bracket
• If you have a mountain bike, measure from the center of the bottom bracket to the top of where the seat tube intersects with 4
• Once you have this measurement, refer to Trek’s sizing chart to determine what size frame you need
• If your measurement falls between two sizes on the chart, choose the larger size for a more comfortable ride

Trek Bike Size Chart by Height

Trek Bike Size Chart by Height When it comes to finding the right sized bike, height is one of the most important factors. Trek has a great size chart that can help you find the perfect fit based on your height. Here’s a breakdown of the chart: XS/14″ – 5’0″ and under S/15″ – 5’1″ to 5’4″ M/17″ – 5’5″ to 5’8″ L/19″ – 5’9 to 6’0″ XL/21″ – 6’1 and up. Not sure which size is right for you? Here are some tips: If you’re between sizes, go with the smaller size if you want a more maneuverable bike or the larger size if you’re looking for stability. You should also take into account your riding style and what kind of bike you’re looking for. For example, if you’re mostly going to be riding on trails, a mountain bike might be a better fit than a road bike. Ultimately, it’s best to test ride different bikes before making your final decision. But using Trek’s sizing chart is a great place to start!

Trek Bike Size Chart Inches

If you’re in the market for a new Trek bike, you’ll want to make sure you get the right size. To help you out, we’ve put together this handy bike size chart. Just match up your height and inseam measurements with the appropriate frame size. Height (in) Inseam (in) Frame Size (in) 5’2″ – 5’6″ 25″ – 27″ 13″ – 15″ 5’4″ – 5’8″ 26″ – 28″ 15″ – 17″ 5’6″ – 5’10” 27″ – 29″ 17″”- 19″” Now that you know what size frame you need, it’s time to start shopping! Trek offers a wide range of bikes for all kinds of riders. Whether you’re looking for a mountain bike to tackle trails or a road bike for racing, we’ve got just what you need. So get out there and explore your world on two wheels!

17.5 Bike Frame for What Height

When it comes to bike frames, size really does matter. If you’re looking for a 17.5 frame, that means you need a bike that’s specifically designed for riders who are between 5’7″ and 5’9″ tall. This is the most popular size for road bikes, and it’s also a good choice for mountain biking and hybrid riding. The big advantage of choosing a 17.5 frame is that it offers the perfect blend of comfort and performance. You’ll be able to ride longer distances without getting fatigued, but you’ll still have plenty of power when you need it on hills or during sprints. And because this size is so popular, you’ll have no trouble finding accessories and components that are compatible with your bike. If you’re not sure if a 17.5 frame is right for you, always err on the side of caution and go up one size rather than down. It’s much easier to make adjustments to a bike that’s too big than one that’s too small, so better to be safe than sorry!

Trek Medium Frame Size

If you’re looking for a new bike and aren’t sure what size frame to get, never fear! We’re here to help. In this blog post, we’ll be discussing medium frames in more detail, specifically for Trek bikes. Keep reading to learn more about whether a medium frame is the right choice for you. When it comes to choosing a bike frame size, there are a few things you need to take into account. First, consider your height. If you’re on the taller side, a medium frame might be a good option for you. But if you’re shorter, you might want to go with a smaller frame. It’s all about finding what’s comfortable for YOU. Another thing to keep in mind is the type of riding you’ll be doing. If you plan on doing mostly road biking, then a lighter frame is usually best. But if you’re interested in mountain biking or other off-road activities, then a heavier duty frame might be necessary. Again, it all comes down to personal preference and what works best for YOU and your riding style. So there you have it! A few things to think about when deciding if a medium frame size is right for you. As always, we suggest coming into our store and trying out different bikes until you find the perfect fit!

Credit: www.leisurelakesbikes.com

Where Do I Find Frame Size on Trek Bike?

If you’re looking for the frame size on your Trek bike, there are a few places you can look. The first is on the bike itself. There should be a sticker somewhere on the frame that lists the size. If you can’t find it there, you can also look in the owner’s manual. Finally, if you still can’t find it, you can contact Trek customer service and they’ll be able to help you out.

How Do I Know My Bike Frame Size?

When it comes to finding the right size bike frame, there are a few things you need to take into account. First, your height and inseam measurement will be the biggest factor in determining what size bike frame you need. You can find your height and inseam measurements by standing against a wall barefoot with a book held between your legs, flush against your crotch. Measure from the floor to the top of the book, then measure from the top of the book to the ground again. These two numbers added together will give you your inseam measurement. Once you have these numbers, you can consult a bike sizing chart to find out what size frame will work best for you. Another thing to consider when choosing a bike frame size is whether you want a road bike or a mountain bike. Road bikes tend to have smaller frames than mountain bikes because they’re designed for speed and efficiency on paved surfaces. Mountain bikes, on the other hand, are built for rugged off-road riding and typically have larger frames that can accommodate wider tires. If you’re not sure which type of bike is right for you, it’s always best to consult with a knowledgeable salesperson at your local bicycle shop. Keep in mind that even if you choose the perfect sized frame based on your height and inseam measurements, it’s still possible to end up with a bike that’s too big or too small. That’s why it’s important to test ride any bike before you make a purchase. Pay attention to how comfortable you feel on thebike and whether or notyou can easily reach all the controls without havingto strain yourself. If everything feels good, thenyou’ve found yourselfthe perfect sized frame!

What Size Trek Bike for My Height?

When deciding on what size Trek bike to buy, your height is the most important factor to consider. Trek has a wide range of bikes that come in different frame sizes, so you’ll need to know your height in order to find the right bike for you. If you’re on the taller side, you may want to consider a Trek bike with a larger frame. For example, if you’re over 6 feet tall, you might feel more comfortable on a Trek Domane SLR 9 or Madone 9.5. If you’re closer to 5 feet tall, a smaller frame like the Trek Emonda ALR 4 or Procaliber 9.9 might be better suited for you. In general, it’s always best to err on the side of caution and go with a larger frame if you’re unsure. You can always make adjustments with the seat and handlebars to make it more comfortable for your specific height. And remember, if all else fails, there’s always the option of customizing your own Trek bike!

What Size is a 17.5 Bike Frame?

When it comes to bike frame size, the number 17.5 refers to the length of the seat tube. This measurement is taken from the center of the bottom bracket to the top of the seat tube. The average 17.5 inch bike frame will have a top tube that is also 17.5 inches long. However, some manufacturers make bikes with slightly longer or shorter top tubes. For example, a company like Specialized might make a 17.5 inch bike frame with an 18 inch top tube. The rest of the dimensions on a 17.5 inch bike frame will vary depending on the type of bike and manufacturer. For instance, mountain bikes tend to have longer chainstays than road bikes. And within each category, there can be even more variation between brands. So it’s important to look at all of the measurements when you’re trying to determine what size bike frame you need. Here are some general guidelines for sizing a bike frame: – If you’re between 4’11” and 5’3″, you’ll probably need a 13-15 inch frame – If you’re between 5’3″ and 5’7″, you’ll probably need a 15-17 inch frame – If you’re between 5’7″ and 5’11”, you’ll probably need a 17-19 inch frame

Bike sizing – Trek Superfly – what frame size AND GEOMETRY to choose?

To conclude, bike frame size is an important measurement to take into account when purchasing a bicycle. By following the instructions in this blog post, you can easily measure your own bike frame size at home. Additionally, it is important to keep in mind that different brands often have their own sizing charts, so be sure to consult those before making your final purchase.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

Bike Size Charts – How to Choose the Right Bike Size

When buying a new bike, you have a wide range of bikes available to you online. If you’re buying a bike from the website of a retailer or manufacturer, it is important to get your sizing right.

Simple charts:

Commuter and hybrid bikes, mountain bikes, for a more precise fit:.

• Standardized Sizes (XS, S, M, L, XL)

Frame Sizes

Geometry charts, useful measurements, between sizes – solutions.

• Adjusting Your Bike for a Better Fit

The Wrong Size

The rightsize.

For riders looking for a commuter or hybrid style bike, these charts simplify your sizing options.

Commuter and hybrid bikes may be measured in either inches or centimeters:

Mountain bikes and road bikes are sized differently.

Road bike frame sizes are usually measured in centimeters. Sizing differs from mountain and hybrid bikes:

Mountain bike frames are shorter and smaller than road bikes. This improves agility during technical riding.

A low top-tube avoids injury during dismounts.

That’s all you need to know to quickly and easily choose your bike size. If you want a more precise fit, read on.

Many bike size charts make no mention of inseam measurements, but this may be the most important measurement to consider when fitting a new bike. Read here for details on inseam measurements .

Standardized Sizes

XS, S, M, L and XL are known as ‘standardized sizes’.

Sizing varies between brands. The small (S) size from one brand or model could be equivalent to an XS or M for another brand or model.

For these reasons, it isn’t especially useful to think of yourself as a size Medium across all bikes.

Sizing also varies between road, hybrid/commuter and mountain bike types. It also varies between men’s and women’s bikes.

Frame sizes are based on the length of a bike’s seat-tube, from its uppermost point to the center of the bottom bracket. Road bikes measure this in centimeters while mountain bikes use inches.

For example, you may suit a ‘55cm’ road bike frame size – or a ‘16 inch’ mountain bike frame.

Frame sizes are more accurate across brands than standardized sizes.

Quality brands will display a geometry chart on their bike’s product page. These may seem complicated, but standover height and reach are the main measurements to focus on for sizing.

These body measurements will help you achieve an accurate fit:

Your overall height is useful for finding a bike of the correct height , but this should be used in conjunction with your inseam and reach (arm length) measurements.

While two people may be the exact same height, it is likely that their arms and legs will be different lengths.

If you only use your height, it’s still possible to select a bike that will overextend your arms or legs.

Inseam and Standover Height

Your inseam measurement determines whether or not you can comfortably straddle and pedal your bike. When it comes to your leg length, inseam is the most important measurement you can take.

You may need some help to make this measurement. With shoes on, stand upright with your feet flat on the ground. Use a measuring tape to record the distance from the floor to the highest point of your inside leg at your crotch. This is your inseam measurement. If you don’t have someone to help you, use a book to mark the wall behind you.

Every person has different proportions. This chart illustrates the range in inseam lengths:

Many manufacturers list the ‘standover height’ of their bikes. This is the distance from the floor to the bike’s top-tube. You are seeking a bike with a standover height that is 1” to 2” inches less than your inseam measurement.

The distance between your inseam length and your bike’s standover height is known as ‘ clearance ‘. This is especially important to consider for off-road cycling.

Reach relates to how comfortable you are when seated and in contact with your bike’s handlebars. Too much reach and your arms will be overextended, causing you to lean too far forward. This leads to discomfort and a lack of visibility. Too little reach and your arms will feel cramped.

If you already have a bike that fits well, you can measure the reach distances on that bike and compare them to those listed on the manufacturer’s geometry chart.

If you don’t have a bike that fits well, consider the following.

For the average person, the distance between their fingertips with arms outstretched is equal to their height. If you are on the border of two frame sizes and your arms are longer than average, size up. If your reach is shorter, size down.

Are you on the border of mountain bike sizes? If you ride technical trails, choose the smaller option for increased agility. A larger size will stretch you out and will only help for long, fast sections.

If your legs are longer than usual, size up to a bike with increased standover. For shorter legs, size down.

If you are ambitious, fit or athletic you may benefit from a larger frame with a lower profile. For a more casual ride-style, size down.

If you suffer from decreased neck or back flexibility, a smaller size will place you in a more upright position.

Clearance is the distance between your bike’s top-tube and the highest point on your inside leg.

More clearance is needed for technical mountain biking, where dismounts are common.

Increased clearance is also beneficial for casual riders in urban areas, where safe stopping can be frequent.

A lack of clearance can lead to painful injuries.

Step-through frames have much more clearance than standard frames. They suit less-flexible cyclists and fit a wider range of rider sizes and heights… and they can be ridden in a dress.

These are the standard wheel sizes found on these bike types:

Hybrids and Commuters:

Road bikes:, mountain bikes:.

Smaller and shorter riders may find a better fit on the same bike type with these smaller wheel sizes:

On some bike models, smaller sizes may use smaller wheels to remain in proportion.

Adjusting a Bike for a Better Fit

If your bike is slightly mis-sized, don’t fret yet. Here’s how to adjust your reach for a better fit:

• Replace your stem with a longer or shorter option.
• Install an adjustable stem to alter handlebar height and distance.
• Install riser handlebars to increase handlebar height and reduce reach.
• Move your seat forward or backward.
• Replace your straight seatpost with a ‘layback’ seatpost.

A mis-sized bike can lead to lower back, shoulder, neck, knee and elbow pain. Mis-sizing results in reduced enjoyment and performance.

The wrong size bike can be unsafe, due to a lack of control and/or visibility.

Now you can make an informed choice when it comes to selecting the bike size that fits you. Rightsizing is an essential factor in experiencing maximum cycling comfort, performance and enjoyment.

Useful Links

• See our reviews, for more information on the Best Bikes for you.
• Have questions about which bike to choose? Ask in our Forum .
• Want to win a bike instead of buying one? See our bike Giveaway .
• Find out more about BikeRide .

Complete Bike Frame Size Chart For All Bikes ?

Every buyer wants a bike that fits, and therefore consulting the correct bike frame size chart is critical.

If the frame is too big or too small, the chances are that you’ll strain. That’s when you start complaining of backache and knee pain, and that’s not all.

You’ll also have a low-performing bike, and that sucks away the joy of cycling. So, to avoid all that, you must pick the frame size correctly.

Note that bike frames vary among different bike types.

For example, the sizing guides for road bikes and mountain bikes are different. The same goes for kids’ cycles and adults’ bicycles.

So that you can understand my drive, I’ll offer you the ultimate sizing guide (plus charts).

Bike Frame Size Chart: Your 3 Options!

Essentially, there are three methods of determining the frame size, and they are as follows:

Method 1 – Inseam Length (How to Measure Bike Frame Size Using Your Inseam)

If you want to determine the correct frame size without referring to any guide, there is no better way to do it than to use your inseam length.

The inseam length is your inside leg length, which you can determine by following these steps:

• Remove your shoes and stand straight on flat ground with your legs 6-8 inches apart
• Measure the distance between your crotch and the ground in cm to get your inseam length
• Depending on the type of bike that you want to buy, use the inseam length to calculate the frame size using the details in the table below.

If your inseam length is 78cm, for example, and you want to buy a road bike, you should look for a frame size that measures 54-55cm (78cm X 0.70).

Method 2 – General Bicycle Frame Size Chart

Below is a general bike size chart that you can use to buy any bike.

The chart looks at one important thing, and that’s your height. If you match the bike frame size with your height, the chances are that the bicycle will fit.

Note, however, that I’ve shared a range of frame sizes, which means it’s not precise. So, if you intend to be more specific, consider method 3.

Method 3 – Advanced Bicycle Frame Size Chart

This method promises a more accurate bike frame size. In this case, you’ve to pay attention to the bike type you want and then match your height with a corresponding frame.

So, it’s no longer about generalizing as bikes as road bicycles and MTBs differ in frame sizes.

Now, let’s look at the sizing guide for all these bike types.

1. Road Bike Frame Size Chart

Road bikes mostly come in two styles; sportive and racing.

Sportiv road bicycles have a shorter top tube length, while racing road bicycles have a longer top-tube length. But in recent years, there has been a rise in adventure road bikes and cyclocross.

Even though manufacturers may have different sizing guides for their road bike subtypes, most of them tend to use the sizing chart below.

So, consider it to find an ideal road bike frame size (in cm).

2. Mountain Bike Frame Size Chart

Mountain bikes are engineered for off-road cycling. So, they come in the most robust frame size.

Their frames are measured in inches and cm, and their sizes range from X-Small to XX-Large. So, your job is to match the frame size with your height, as shown in the table below.

Note, however, that since mountain bikes come with different wheel sizes (26″, 27.5″ & 29″), there could be a slight difference in the bike size.

But if you use the above chart, you’ll rarely get the size wrong.

3. Hybrid Bike Frame Size Chart

Note that hybrid bikes come in different subgroups such as:

• Comfort bikes
• Performance bikes
• Dual-sport bikes
• Sport hybrid bikes
• Commuter bikes

So, all these subtypes employ the same sizing model.

Note that most hybrid bike manufacturers measure the bikes from the seat tube top to the bottom bracket.

Other manufacturers, nevertheless, use different sizing models. The most crucial point, however, is to ensure the frame size matches your height.

Hybrid bike frames are measured both in inches and cm, just like mountain bikes, and their frame sizing guides are the same as shown in the table below.

Ensure, however, that you have at least a 2cm stand-over height whenever you buy a hybrid bike.

4. Beach Cruiser Frame Size Chart

The difference between beach cruisers and the other bikes discussed above is that they come in sizes for all ages. So, you’ll get beach cruisers for kids and adults.

For that reason, you have to consider the frame size and the wheel diameter and match them with your age or height.

If I were you, I would consider the height over the age as it’s more precise.

Here’s a reference sizing table you can use.

5. BMX Bike Frame Size Chart

BMX bikes have been known as one-frame bicycles for a long time, with only the wheel size coming in variations.

For that reason, we won’t focus on the frame size as it’s unreliable in this case. We’ll focus on the wheel size instead.

And when talking about the wheel size, you’ll mostly have to choose a 16″, 18″ or 20″ wheel.

Note, however, that some BMX nowadays come with 24-inch wheels , and a perfect illustration is the Mongoose Title Elite 24 Race BMX (View on Amazon)

For such, you’ve to see what the manufacturer recommends. For others (20 inches and below), you can use the table that follows.

6. Gravel Bike Frame Size Chart

Gravel bikes are a type of road bike, which means you can size them like regular road bikes.

Nonetheless, some gravel bike manufacturers employ gravel-specific size guides that slightly differ from traditional road bikes.

Here’s one table that most of them use.

7. Womens Bike Frame Size Chart

Women naturally have a smaller stature than men. So, their bike frames are smaller than men’s.

However, you can expect a slight difference when sizing women road bikes but no difference in MTBs and hybrid bikes.

Unlike men’s bikes, we don’t have bike frame sizes for women over 6’2″.

Below are two tables you can refer to.

Women Mountain Bike and Hybrid Bike Frame Size

Women Road Bike Frame Size

8. Kids Bike Frame Size Chart

Kids’ bikes are not sized like adult bikes. While adult bicycles are sized according to the frame size, kids’ bikes depend on the wheel size.

In that case, you have to consider the rider’s height and the inseam length.

The inseam length, in particular, gives a more conclusive bike size. But still, most manufacturers use the age to measure kids’ bikes.

If I were you, I’d consider both the rider’s age and height. But overall, the rider’s height is more accurate than the age.

It’s essential that your kid can touch the ground with both feet, and that’s where the inseam length comes into play.

Here’s a sizing table to use in that case:

9. Specialized Bike Frame Size Chart

Specialized has a unique styling guide for their trail bikes. It grades the frame sizes into six sizes, all corresponding to a specific height range.

Usually, the bigger the frame size, the more stable the trail bike is likely to be.

Here’s a table from Specialized.com that you can use for direction.

10. Trek Bike Frame Size Chart

While Trek tends to size their road bikes like regular ones, they have a different approach for their MTBs.

Trek employs an alpha sizing model, which according to them, is easy to understand. According to the alpha sizing model, MTB frames come in four sizes, as shown below.

So, you only need to pick an alpha size that matches your height.

What If You Get the Size Wrong?

As far as your cycling health and fitness are concerned, it’s best if you ride a bike that fits you.

A bike that’s extremely smaller or excessively big is a safety and health risk. Health-wise, you’ll strain your back, knees, and shoulders, and that could result in severe pain.

Safety-wise, it will not be easy to maneuver the bike safely. You are likely to struggle and could easily crash.

Overall, if you cannot stand over the bike, the bike is too big. And if you cannot bend the knees, then it’s too small.

So, what should you do in either case? Here’s my advice:

Is the bike frame too small?

Consider these possibilities:

• If the seat is low even after pulling it up, consider getting a longer seat post
• If the stem is smaller, replace it with a longer one
• Move the saddle slightly back to create more leg extension room

Is the bike frame too big?

If yes, then consider these possibilities:

• Get a shorter seat post if what you have is longer
• Swap the stem with a shorter one if that’s longer
• Tilt the saddle slightly forward to give you a more comfortable handlebar reach

How Do You Ensure You Don’t Get the Frame Size Wrong?

Though the sizing chart is essential, it doesn’t always guarantee that the bike frame will fit. So, what else can you do?

In addition to looking at the advanced bike sing chart, consider these essentials:

a) Stand-Over Height

The stand-over height refers to the vertical distance between the bike’s top tube (crossbar) and the ground. Generally, this height influences your overall cycling comfort.

So, you have to confirm that you can stand over the bike with both feet touching the ground. In that case, there should be at least a 2-inch allowance between the top tube and the crotch.

b) Saddle Height

The bike saddle is another component that has a massive bearing on your overall cycling comfort. If the bike saddle is high, you’ll have a hard time steering the bike.

Luckily, you can adjust the saddle position. So, pick a bike whose saddle height you can change.

c) The Reach

The Reach (the handlebar-to-seat distance) also determines your comfort. Note, however, that the Reach is only essential for road bikes.

It’s not only vital for riding comfort but also cycling efficiency.

You can know if the Reach is correct by looking at the axle position when you take a seat. If the axle is in front of the handlebar, the Reach is short, and if it’s behind, the Reach is long.

The good thing about the Reach is that it’s adjustable. You’ve to be careful, nonetheless, not to mess up with the bike handling.

d) Leg Extension

It’s also essential that your legs also have enough room to flex when cycling. You can do that by adjusting the saddle height.

But if the seat is at its maximum height and you cannot extend the legs, the frame size is likely small. Thus, getting a more oversized frame is advisable.

Overall, you should have a 15-20 degree knee bend to offer you the correct leg extension.

1. What Size Is A 20 Inch Bike Frame?

A 20-inch bike frame (referring to the frame size) is an adult bike that suits riders who are 6’2″-6’4″ tall.

2. What Bike Size Should I Get For My Height?

You should get a bike frame size that matches your stature. Here is a general guide you can use to match a bike frame with your height.

3. What Size Is A 56cm Frame?

A 56cm frame is a large-size road bike frame that suits 5’9″-6’0″ tall riders.

4. How Do I Find My Best Bicycle Frame Size?

The easiest way to find your bike frame size is to calculate your inseam length in cm. Once you have the value, multiply it as shown in the table below:

5. What Does A 26 Inch Bike Frame?

A 26-inch bike means that a particular bike comes with 26-inch wheels. Ordinarily, a 26-inch bike suits riders who are under 5 feet (150cm).

Note, however, that some 26-inch bikes come with much bigger frames to suit guys who are taller than 5 feet.

Closing Thought:

Now you have the ultimate bike frame size chart, or should I say charts? You can thus use them as your reference to find yourself the most comfortable and fitting bike frame.

JustChartit

Trek Bike Size Chart

Trek is the top-of-class bike brand in the world, whether it be the comfort level, looks, or technological touch. You will find everything a modern-day person wants, and Trek stays at the top of the list of bike rankings.

A trekking bike will always beat any other bike. Whether the bike’s specs, pricing difference or any other aspect that matters while buying a bike, they will always come at the top. 

Not only are these factors the reason behind the bike’s popularity, but Athletes and many celebrities also prefer these bikes. Thus, one can imagine the craze among people and the business market.

This bike is one of the most sold in the recent decade. The trek mountain bike is a bike with jam-packed technology and is the most popular frame size.

The company manufactures these standard numeric sizes, the most sold ones.

They are not any special sizes. However, these numbers conclude that the alpha size of the bike ranges from extra small to double Xl, which further adds to the bike’s popularity.

Table of Contents

Trek mountain bike size chart, trek road bike size chart, what size trek bike do i need, trek bike frame size chart.

Whenever you want to buy a bike, all other factors aside, you care about the sizing of the bike. Most companies’ sizing methods are exact, alpha sizing, but Trek uses numeric sizing techniques, making it easier for the customer to know which bike suits them. What are alpha and numeric sizing? 

Alpha sizing means the alphabetical representation of a bike’s size. This method could be more efficient as if your size lies between small and medium, it will be a headache for you to find the best size as it only shows the alphabetic size of the bike.

Now the numeric sizing needs to show the alphabetic size. It shows the actual size of the cycle in numbers, for example

And so on, This is the method used by Trek, which is more efficient because the customer can find the best size according to their height hence another reason behind the brand’s popularity. For further information about trek bike sizes, such as

• Rider height
• Size in inches

A trek bike size guide is preferable as all these sizes are available in inches, feet, and centimeters. You can find it in the directory.

The best bike till now that Trek has manufactured is its mountain bike. The reason is because of the jam-packed technology that bike has.

This bike is the world leader in mountain bike technology due to the technology and innovations, and they are not limited. With every passing day, the company innovates new technology, making it top-of-the-line.

This technology helps to make the bike function much better, which is coming over obstacles and trials. These bikes are the most technological bikes ever created. Now the most common factor for a bike is the size.

As you already know, the company provides numeric sizes, making it easier for the customer. However, if a person still needs help finding the size, the trek bike size chart might be handy.

The chart helps find the frame size of a trek mountain bike, tire size or any size you want. You will see it from the guide or the trek bike size chart.

Also read: Giant Bike Size Chart

A road bike is a regular daily life bike. It only requires a few good features, such as technological touch or efficient tires. Most people prefer comfort over safety in the case of road bikes as these bikes have less probability of an accident or any other tragedy that might happen in the case of mountain bikes.

 Although if you talk about a trek road bike, these bikes are a complete package of comfort, safety and many more specs that a person will look for in a road bike.

When it comes to size, it is easier to find their size due to the numeric sizing technique of the company. However, if you look for the frame size of a trek road bike and tire size, the trek bike size chart comes in handy.

Also read: BMX bike size chart

Trek Hybrid Bike Size Chart

Hybrid bikes are famous for their comfort and versatility and are fun to ride, making them unique. Compared to other kinds of bikes, hybrid bikes come on top in case of comfort, and the

The ride is also fun. The person riding a hybrid bike enjoys the ride more than other bikes. This bike offers more than just comfort. 

It also provides speed; one can travel on this bike with rates ranging from 10- 18 miles per hour which is a good speed for a bike. The bike is sometimes roughly used, but its primary purpose is casual use. 

The trek hybrid bike’s size is easy to find from the trek bike guide or trek bike size chart.

If you are looking for a trek bike and need to know the size you want, one might think it is a problem, but in terms of a trek bike, it is easy to find the best bike that suits you the best.

The company uses a numeric technique, which makes it easy to find your size. All you need to know is your height, and if you follow the trek bike guide, you will find the best-size bike for you. 

Trek also provides size conversion according to your height, where they measure your height in centimeters and then convert it into the bike’s size through a numeric technique.

Also read: Bike Tire Pressure Chart

How To Measure Trek Bike Frame Size

Sizing is an essential factor that a person needs to look at before buying a bike. Now, this sizing has further phases starting from the frame size to the tire’s size.

The company provides trek bike sizes, which is a plus point for the customer, putting the company at the top of the list. The measuring technique is numeric for trek bikes which is much more efficient when compared to the alpha technique. 

If a person needs help understanding the sizes of their cycle, the trek bike size chart comes in handy. The sizing policy of the trek bike is one of the company’s plus points, putting it on the top. 

A trekking bike is a top-of-the-class bike ensuring comfort, a technological touch, and long-term reselling value. These facts put these bikes on top when compared to other kinds.

Their most valuable and essential manufactured product is the trek mountain bike which is top of the class bike in the world.

The company’s sizing also favors customers, whereas other companies avoid these factors, making it a world-class bike company. Hence some people need help understanding their sizes. For such people, the trek bike size chart is a great source to find their best extent.

Biketoworkday is supported by its audience. When you buy through our links, we may earn an affiliate commission. Learn more

Where is Frame Size on Trek Bike? – The Answer and More

Written by  Gary Johnson / Fact checked by  Henry Speciale

The perfect bicycle frame offers an optimal experience for any bike trip. It boasts efficiency and comfort for beginners and experienced cyclists alike. There are a few things to look out for

To know where is frame size on trek bike, you have to look at its underside . Read on to learn more about where trek bike sizes are located, their sizing chart, and why we should look out for trek frame sizes.

Table of Contents

Where is the Frame Size on a Trek Bike?

How do you measure a trek bike frame, 1. the comfort of a fitting bike., 2. efficiency.

Simply put, to know where to find frame size on trek bike, you would need to check the underside of the bike frame . Its serial number would be located near the bottom bracket or the rear stays, right on the barcode sticker.

In other words, you can determine the bike’s size by checking its serial number, which includes a set of seven letters (L) and numbers (N) as follows – LNLNLNN. To be clear, the first letter indicates the frame size, while the second shows the last digit of the year it was manufactured.

Alternatively, you can look these serial numbers up on the manufacturer’s site or the internet to determine the size and model.

Be careful not to mistake trek numbers for the trek frame size. These digits indicate the type of trek bike rather than its frame size. These include road bikes (1X00, 2X00, 5X00), mountain bikes (3X00, 4X00, 6X00, 8X00), and hybrid bikes (5X00.)

Trek frame sizes vary depending on the type, be it a mountain bike or a road bike. Trek frame sizes use Alpha sizing rather than the usual inches or centimeters (cm), and they usually have a certain range of measurements.

Alpha sizing is commonly used in trek bikes mainly for two reasons: a more comprehensible sizing and methods of measurements wherein sizes are based on reach rather than seat tube length.

So, rather than seeing a trek 17.5 frame size, you’d see terminologies such as trek medium frame size or extra-small, small, large, extra-large, etc.

Here’s a guide for a trek size chart by height, according to the cyclist’s height. This chart also applies to Trek MTB size charts as well as road bikes.

For instance, if you want a trek 19.5 frame size, you should get one with an “L” Alpha size, which is recommended for people with a height of 5’9.7” to 6′ 2″.

Then, how do we measure frame size of bike or, in this case, reach? You can follow these steps:

• Mark the center of the handlebar and where your sitting bone will make contact with the saddle.
• Measure the distance between the points you’ve just marked.
• Multiply your height in centimeters by 2.55 to learn what your ideal reach is.
• Compare the two results to see if the two are compatible.

Why Do We Need to Measure Bike Frame Size Trek Bike?

Aside from knowing where and how to read the trek sizes, it’s also important to know why a cyclist needs to measure frame size bike.

Trek bike sizes can be tricky; some can be too large or too small for a person’s stature, which can both lead to inconvenience.

A bigger bike may make you overtly stretch your body to ride it, leading to discomfort and control difficulties. In contrast, a too-small bike means you’ll have to hunch over and bend your knees, which can result in neck and back pain.

So, it’s best to measure the bike’s frame size to make sure it suits your body type. Fortunately, there’s a variety of available trek bike sizes for any body type and height.

A suitable bicycle frame size would also help boost your performance in cycling. It’s also better for power transfer while riding and gives you better control over your bike.

When riding a too-large or too-small bike, you won’t be able to generate as much power as you can. In addition, it’ll be harder for you to maintain optimal aerodynamics. Both of these factors will drastically reduce your speed and efficiency.

Knowing where is frame size on trek bike is can help you choose which bikes would suit you or not. So, whether you’re a beginner or an experienced pro, it’s still a must-know that the frame size is often located on the bicycle frame’s underside.

Selecting the proper size can benefit a cyclist’s experience and performance. Therefore, to select the best trek bike size, take a look using your own height and the frame’s reach.

“I ride my bike to work for years, but is that enough? Our carelessness towards our surroundings has taken a toll on the environment. And now, everyone is responsible for changes; even the most minor contribution is counted. With this hope and spirit, I started with my partner to establish Biketoworkday to help more individuals commute to their work sites on their bikes.”

Powered by Outside

Review: Trek’s New 2025 Checkmate Gravel Race Bike is Incredibly Fast

Trek modernizes its gravel lineup with a new model that prioritizes speed..

• Share on Facebook
• Share on Reddit
• Trek’s lightest gravel bike ever.
• Incredibly fast.
• IsoSpeed decoupler built in for a smooth ride.
• Optimization for speed means it’s not the best tool for every ride.
• No lower-tier model options.

Don't miss a moment of the 2024 Tour de France! Get recaps, insights, and exclusive takes with Velo's daily newsletter. >","name":"in-content-cta","type":"link"}}'>Sign up today! .

Up until now Trek ’s gravel lineup has been, well, a little lonely, comprised of just the Checkpoint. That bike is a generalist, something that an experienced rider can put big miles on and that a novice can still find approachable and easy to ride. But a one-size-fits-all approach inevitably means some people get left out.

While gravel was once mainly an adventure minded pursuit, the discipline has matured rapidly, and speed is now atop the minds of many, especially as gravel continues to overtake road racing in availability and popularity. Gravel is now where the fast riders are getting their fix, and they want a bike to match. Trek has finally followed many other brands in releasing a second gravel model, one that is all about speed and racing. It’s called the Checkmate, and it lives up to the race-focused billing.

Quick hits: Seven things to know about the new Trek Checkmate

• The Checkmate is a new performance gravel bike optimized for racing.
• A Checkmate SLR 9 is Trek’s lightest gravel bike yet, a massive 1-pound lighter than an equivalent Checkpoint SLR 9.
• Includes mounts for bolt-on frame bags on the inside edge of the frame.
• Trek claims the Checkmate is 5 minutes and 54 seconds faster than the Checkpoint SLR at Unbound Gravel 200 at 200 watts, or 38 seconds per hour faster.
• Max tire clearance: 700c x 45 mm.
• Handling is optimized for the type of gravel racing found at Unbound Gravel, with straight lines and fast dirt.
• For more: trekbikes.com

Checkmate Details

It was only a matter of time before Trek released a new gravel bike, especially because it has a gravel team, Trek-Driftless, that needs to be able to compete in the increasingly competitive gravel circuit. Trek now falls in line with the numerous other brands pursuing the go-fast gravel crowd — BMC, Canyon, Cervelo, and 3T to name a few. As you’d expect, that means there’s a whole lot of optimization for speed in this new bike.

The major nod to speed comes from the tube shapes, which are adapted from the newest generation Trek Madone released earlier this summer . The thing that might throw you off, however, is that the tube shapes don’t at all look aero — not in the way we’ve been trained to expect at least. The head tube area is narrowed like other aero bikes, but the square downtube is decidedly not aero-looking. Luckily the wind doesn’t care what you or I think about aerodynamic shapes, and Trek’s testing shows faster times with these tube shapes. As we’ll get to later, Trek has definitely done something right here in the speed department.

Trek’s response to the fact that the Checkmate has less than standard looking aero tube shapes is that the frame is designed as part of a system alongside the Bontrager Aeolus 37V wheels and optimized around a 38 to 40 mm wide tire. The square downtube promotes the smooth transition of air from the front of the bike to the rear, channeling air around the entire bike in the most seamless way rather than considering each tube shape in isolation.

As those familiar with Trek might have been able to guess, the Checkmate gets an updated version of Trek’s IsoSpeed rear decoupler shock absorption system, which works to isolate the seatpost from the rest of the frame. The result is a bike that feels much smoother when riding seated than without it. It’s worked well on other Trek models for over a decade at this point, and it continues to work well for gravel in the Checkmate.

Also pulled over from the new 8th generation Trek Madone is the one-piece carbon handlebar-stem. Like that squared-off downtube, the handlebar has a blunt shape, and it has a 3 cm flare from the hoods to the drops. There’s also a very slight outsweep. All in, it’s a very aggressive bar for gravel, one that suits the go-fast sensibilities of the new bike.

As a package, Trek claims the new bike is 5 minutes and 54 seconds faster than the outgoing Checkpoint SLR when ridden at 200 watts over Unbound 200. That translates to about 38 seconds per hour faster if you’re not trying to mix it up with the pros.

But beyond aerodynamics, the other big story of this bike is weight, or lack thereof. Trek says the new Checkmate SLR 9 weighs 1 pound less than an equivalent Checkpoint SLR 9, thanks in part to the use of Trek’s top-level 800-Series OCLV Carbon. My size medium test bike weighed in at 7.53kg (16.60lbs) without pedals or bottle cages, making it easily one of the lightest gravel bikes I’ve ever tested.

Checkmate geometry

Trek offers the Checkmate in six sizes, XS to XL, a change from the purely numeric sizing of the previous Checkpoint.

Long and low might dominate the gravel space, but Trek is actually turning things back on the Checkpoint’s geometry. Compared to the previous Checkpoint SLR, the new Checkmate is slightly shorter in the reach department, but with similar stack heights size over size. In short, if you’re coming from the previous-generation Checkpoint, you’ll likely need to use a slightly longer stem than before to match your reach measurements.

Handling geometry has been optimized for straight-line speed as well. The big news here is that the bike is shorter front to back, all in the name of making it more nimble feeling. So how is it optimized for straight-line speed? Mostly with a low, low, low 80 mm bottom bracket drop across all sizes.

On that note, Trek has opted to use just one fork rake offset across all sizes. The result is trail figures that range from a slack-feeling 70 mm on small sizes and a relatively quick 62 mm on the largest sizes.

Checkmate builds, specs, and pricing

The Trek Checkmate isn’t designed to be a generalist gravel bike, and its build range reflects that. There’s just one top-end SLR-grade carbon frame and two builds in total, one with SRAM Force and the other with SRAM Red, all with Trek’s new carbon bar/stem cockpit. Trek also offers a frameset option.

The Checkmate SLR 7 AXS with Force costs $8,299.99 USD / £8,500.00 / €8,999.00 / $10,999.99 AUD, while the SLR 9 AXS with Red costs $11,999.99 USD / £10,000.00 / €10,999.00 / $17,999.99 AUD. The Frameset is $3,999.99 USD.

While there are just the two builds and four colorways, Trek also offers its ProjectOne customization program, allowing for component adjustments as well as custom paint. I was able to arrive at the exact fit I wanted by choosing 170mm crank arms as well as the cockpit option that worked for me, 39mm wide at the hoods, widening out to 42mm in the drops, with an 80mm stem. If you’re going to spend this much on a bike, you may as well have it built up with the exact spec you want rather than just taking whatever version happens to be in stock.

There are also custom paint options for the Checkmate including the new ICON Raw Lithos paint program available specifically on the Checkmate.

Specification as tested

Trek Checkmate SLR 9 AXS in size medium; SRAM RED eTap AXS 1x Groupset (42T chainring, 10-46T cassette); Bontrager Aeolus 37V wheels; Bontrager Girona RSL 38 mm tires; Bontrage Aeolus RSL saddle; Trek integrated cockpit.

Gravel bikes have come a long way in a short time, and the Checkmate may demonstrate that better than any bike. It’s ridiculously light and fast, and, honestly, I’m tempted to leave the review at that. But, there’s more to say.

I was able to recreate my road bike position on this bike, and when I got on, it just felt right to my roadie sensibilities. Pretty soon I was eating up miles at a fast clip. For fast, non-technical gravel routes, the Checkmate is the perfect tool.

As I hit the more technical gravel portions of my usual test route, the Checkmate’s optimization for fast, straight roads was most evident, resulting in some overrunning turns and fishtailing rather than smooth cornering. I was still having fun though, mind you. It feels wonderful on road descents, plus its aero prowess comes to the forefront on descents as it picks up speed rapidly.

Trek does a wonderful job with the small details on this bike, one of my favorite being the fastening system for the seatpost. While the bolt to tighten a seatpost can often be finicky, or made in a way that the bolt and clamp system can fall into the frame itself, this one stays securely in place, and is accessed through a little door held securely shut by a magnet. The seatpost also makes saddle adjustments quite easy, which is far from the norm with seatposts unfortunately.

One small gripe I found with this bike is similar to one I have with the Domane in that my thighs are prone to rubbing against the top tube because the top tube–seat tube junction where the IsoSpeed decoupler is located is a little chunky. That said, it’s not a huge annoyance, and I’m glad to have IsoSpeed on this bike.

I like the number of mounting positions for bottle cages and bags inside the main triangle. Some will lament the lack of internal downtube storage, a feature increasingly found on gravel bikes, but it’s really not something I’ve missed that much, and the omission of downtube storage makes sense because this bike’s mission is pretty squarely on going fast and trimming out any features that add unneeded weight and complexity. Trek has created an elegant frame bag option for the bike as well to access mid-ride necessities like food.

As I said before, it’s an incredibly light bike, helping it feel more like a performance road bike. The integrated aero cockpit borrowed from the Madone aero road bike adds to the performance road feel. I’m not completely sold on the super-narrow handlebar concept being pushed for fast gravel bikes nowadays, meant to put riders in the most aero position possible. However, through Trek’s ProjectOne bike customization program I was able to opt for the 39mm bar width rather than 37mm. I like the fit of these bars quite a bit. They’re comfortable enough in the tops, though I didn’t find myself spending much time there since I was so preoccupied with riding fast. And I love the shape of the drops with a slight flare, just enough for extra control on descents, but not more than you need for a bike that is meant for faster, less technical terrain.

I could easily see this bike being my one-bike option. If you’re not big on adventure riding and instead prioritize fast rides, this bike allows you to add more speed to the off-road portions of your rides, while still feeling plenty fast on-road. A second wheelset could easily transform it into a reasonably capable road bike.

Trek’s entry to the fast-gravel segment is a win in my book. It doesn’t quite put the aero gravel competition in checkmate, but they’ve definitely been put on notice.

Popular on Velo

>", "path": "https://velo.outsideonline.com/road/road-racing/vuelta-a-espana/van-eetvelt-celebrates-too-early-in-costly-vuelta-mistake-i-thought-i-was-already-there/", "listing_type": "recirc", "location": "list", "title": "van eetvelt celebrates too early in costly vuelta mistake: ‘i thought i was already there’"}}'> van eetvelt celebrates too early in costly vuelta mistake: ‘i thought i was already there’, >", "path": "https://velo.outsideonline.com/road/road-racing/vuelta-a-espana/young-gun-riccitello-matches-vueltas-best-kuss-keeps-gc-hopes-alive-despite-heat/", "listing_type": "recirc", "location": "list", "title": "young gun riccitello matches vuelta’s best, kuss keeps gc hopes alive despite heat"}}'> young gun riccitello matches vuelta’s best, kuss keeps gc hopes alive despite heat, >", "path": "https://velo.outsideonline.com/road/road-gear/shimano-di2-wireless-shifting-susceptible-to-cyber-attacks/", "listing_type": "recirc", "location": "list", "title": "shimano’s wireless shifting is susceptible to targeted jamming attacks"}}'> shimano’s wireless shifting is susceptible to targeted jamming attacks, >", "path": "https://velo.outsideonline.com/road/road-training/5-training-tools-to-help-you-ride-farther-and-get-faster/", "listing_type": "recirc", "location": "list", "title": "5 training tools to help you ride farther and get faster"}}'> 5 training tools to help you ride farther and get faster, an american in france.

What’s it like to be an American cyclist living in France? Watch to get professional road cyclist Joe Dombrowski’s view.

Related content from the Outside Network

One way south, mountain bikers react to their first taste of non-alcoholic craft beer, video review: bmc urs 01 two gravel bike, kiel reijnen vuelta video diary: the painful decision to abandon.

The 14 Best Electric Bikes of 2024

We’ve tested dozens of electric bikes in every category—commuter, cargo, cruiser, folding, mountain, and city. Here are the ones worth considering in a range of styles and prices.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. How we test gear.

The use of electric bikes continues to grow. And all types and ages of riders are getting e-bikes. Whether you need an e-bike for commuting, riding the bike path, getting around town, or mountain biking, there is an electric bike for you.

Many factors contribute to the rapid expansion of e-bike use—better batteries, more efficient motors, and lower weights—but the biggest reason is this: electric bikes are a blast to ride. The pedaling assistance provided by e-bike motors makes going up hills easier, allows riding longer distances, and enables riders to carry more cargo. With summer winding down and fall riding season coming soon, now is a great time to buy an electric bike. Plus, many brands and dealers have sales and discounts on popular e-bike models.

Shopping for an e-bike can be confusing—there are many e-bike categories, options, and prices; and sometimes it’s hard to know which e-bike is right for you. Electric bikes are priced from under $1,000 to well over $10,000, Through ride testing and research, Bicycling ’s Test Team found many great e-bikes priced between $1,500 and $3,500. For this roundup, we focused on these lower and mid-price models—most you can purchase online directly from the brands. Many excellent e-bikes are also available through bike shops.

Check out Bicycling’s 2024 Bike Awards for 13 exceptional, high-performing e-bikes rigorously vetted by our editorial team.

The Best E-Bikes

• Best Overall : Aventon Level.2
• Best Commuter E-Bike: Lectric One eBike
• Best Fat Tire : Aventon Aventure.2
• Best Fat Tire Commuter : Rad Power RadRover 6 Plus
• Best All-Around: Cannondale Neo Adventure Allroad

How We Test E-Bikes

Our full electric bike reviews, things to consider when buying an e-bike, how to buy a used e-bike.

Our experienced bike test team evaluates each model included here on its overall quality, safety features, handling, motor, and battery life. We also assess whether the components and features add to the overall quality of the ride. Bicycling editors tested these bikes on local roads, commuting to and from work, using them to stock up on groceries and beer, and running their batteries down to see how long they last on one charge.

Deputy editor Tara Seplavy , the author of this article, also worked in bicycle product development for two decades and led product management for major bike brands. Plus, she commutes to Bicycling's headquarters daily on an e-bike.

While we rode most of the e-bikes in this story, sometimes we can’t get our hands on a great electric bike. In those cases, we rely on the expertise of our test team, interviews with product managers, and rigorous research to compare the bikes’ value and performance against similar models we’ve tested.

Aventon Level.2 Electric Bike

Although we loved the original Level , its update is an improvement in practically every way. A smoother riding bike than its predecessor, it sports a new torque sensor that evenly distributes power, resulting in a more natural ride feel that’s easier to control and manage. Its update also adds visibility, not just with integrated lights, but a full color, easy-to-read display. The Level.2 isn’t just one of our favorite e-bikes—at its price, comfort level, and premium features, we think it just might be the best.

Our only gripe is with its Zoom Aria suspension fork, which can’t handle bigger bumps, though the lockout feature works well. When it hits these large bumps, the fork's rebound is unpredictable and rapid, and it tends to bottom out. Still, if you need an e-bike for doing just about anything, from commuting to work to zipping around pavement on the weekend, the Aventon Level.2 is our top nomination.

Lectric One eBike

A big reason to consider Lectric’s One, according to Test Editor Dan Chabanov, is Pinion, a German brand that manufactures high-end and fully enclosed gearbox units—sort of like an internally geared hub, he notes, except mounted in the bottom bracket.

Most consumers don’t know about the brand, explains Chabanov, because Pinion products are typically found on very pricey and niche bikes. Having this system on a $2,400 commuter e-bike, he notes, is very exciting, especially since it’s a part usually reserved for bikes triple that price.

Chabanov was impressed with not only the Pinion system’s smoothness and precision, but the hub motor as well. While the improved cadence sensor was better than others he’s used, Chabanov notes it was still very much a cadence sensor. “Like most cadence sensor-equipped bikes, the One feels disconnected from the motor,” he says. “This feeling is from a combination of lag (though very slight in this case) and because the force put into the pedals does not relate to the motor’s output. Both factors result in a slightly unnatural motor response.”

Still, it didn’t take Chabanov long to get used to how the One delivers its motor assist. The One is an ideal option for riders who seek a dependable, low-maintenance, all-weather commuter bike with the bells and whistles of a bike that usually costs much more.

Aventon Aventure.2 Electric Bike

Aventon has been on a roll with its new models and continuous revisions to existing platforms. The brand’s update to its Aventure fat-tire e-bike is no exception. At first glance, there are few significant visual differences between the original Aventure and this second-generation model. However once you ride it, the small changes add up and feel huge.

Compared to the original Aventure, this second gen rides more smoothly. The new torque sensor allows more control over the acceleration of Aventure’s 750W rear hub motor; lighter-weight testers found the previous model to have too much torque, but the latest Aventure remedied this fault. Additional updates include a new head unit interface, integrated turn signals, a front light, a rear rack, and fenders for keeping clean.

The Aventure.2 is an excellent fat-tire e-bike for commutes, especially on snowy days and gravel pathways. Off-roading, it excels on doubletrack trails, but with this burly bike’s weight and components, it has limited functionality on singletrack and more aggressive mountain trails.

More of the Best Fat-Tire E-Bikes

Rad Power Bikes RadRover 6 Plus Electric Bike

Brawny, big, and bold, the RadRover 6 Plus is powerful at its best and sluggish at its worst. With its 750W rear hub, 4-inch-wide tires, and RST spring suspension fork (with 60mm of travel), it’s cushy and stable enough to tackle potholes as well as dirt, rocks, and snow.

Compared to its predecessor, an updated display and solid hydraulic disc brakes make the RadRover 6 Plus a more comfortable and relaxed ride. It also comes in at just over $1,ooo, making it reasonably priced.

With its extreme weight of 74 pounds (without a rack), we wouldn’t dare to roll this thing upstairs. If you need a do-it-all bike to help get you to and from work or the grocery store and frequently battle the elements while doing it, or if you have a lot of land you’d like to tear up, the RadRover 6 is your beast. But anyone living in a small space might have trouble handling this steed.

Read Full Review

Cannondale Neo Adventure Allroad

If you want a quality e-bike but are unsure of where you will ride, Cannondale’s Neo Adventure Allroad is a solid choice. Its 2.6-inch-wide knobby tires are suitable for dirt paths and rail trails but the bike is lightweight and nimble for commuting and riding around town.

The tires’ extra width helps smooth out the ride without needing a heavy suspension fork, although they buzz a little on the pavement. The 250W Bafang hub motor works well for flat roads and gentle hills but it lacks power for steeper terrain. (If you need extra power, check out the Allroad S with a 750W motor and 28 mph top speed.)

We tested the Allroad EQ model that sells for $1,875. It is the same as the base-level Allroad and adds fenders, a rear rack, and hydraulic disc brakes. If you’re on a tight budget, get the Allroad, but if you can spend more than $2,000 get the Allroad S.

Available in standard frame

Velotric Discover 2

For less about $1,900, the Discover 2 is better equipped and more powerful than some bikes double its price. With its low step-through frame, 440-pound maximum capacity (bike + rider + cargo), and torquey motor, this Velotric is great for around-town use, commutes, and running errands. What’s more, Velotric offers baskets and racks to expand the Discover’s cargo-hauling abilities—perfect for those weekend rides to the farmers’ market.

Velotric offers the Discover 2 in four colors and two sizes. Our 6-foot test rider found the size large fit well for her height. Additional highlights included the suspension fork with lockout, 8-speed Shimano drivetrain, hydraulic disc brakes, and an adjustable cockpit. The Discover has a bright and easy-to-read color display that allows easy customization of the bike’s assistance levels and speed limit.

We found the bike had plenty of pep on flatter roads but due to its weight, the bike can bog down on steep hills if using only throttle assist. The Discover 2’s only big issue is front wheel wobble. It is only noticeable with both hands off the bar but is something that may concern some riders

Aventon Ramblas eMTB

The Aventon Ramblas is a category-defining hardtail e-MTB that impressed us during trail testing. Its trail-forward components include a 1x12 SRAM Eagle drivetrain that can handle most climbs, powerful four-piston SRAM brakes, a solidly stiff 35mm RockShox fork, a comfy dropper seatpost, and cushy 2.4-inch wide tires. These are unmatched by any other hardtail e-MTB, especially given its price.

The Ramblas has no true competitors for comparatively priced, trail-ready e-MTBs. Every so often a bike comes along that entirely shifts the bicycle market—the Ramblas might do that for mountain biking. And once more bike brands see and ride the Ramblas, I expect several will soon follow Aventon’s lead with sharp-priced, trail-capable hardtail e-MTBs.

Ride1Up Cafe Cruiser Electric Bike

Sometimes, you just want a classic cruiser to take out on the weekends. And if that casualness is your desired style, the Ride1Up’s Cafe Cruiser is your best bet. Strapped with a built-in rack, front and rear lights, a 750W motor, hydraulic disc brakes, a decent suspension fork, and 3-inch-wide tires, this upright bike is stable enough for newer e-riders, and with an added passenger kit , the little one, too.

Our testing found that the bike had plenty of oomph to climb short hills despite its weight and laidback geometry. But, like several wide-tire bikes, it has some handling issues. It’s capable of speeds up to 28 mph (and 20 mph using the throttle), which is more than enough power to get you where you need to be.

Ride1Up Portola Electric Bike

Ride1Up’s new Portola folding bike packs a lot of punch for how small it is. Folding down to a compact 19- x 29.5- x 33-inch footprint, this bike features a 750W rear hub motor with 65Nm torque, hydraulic disc brakes, a Shimano 8-speed drivetrain, and an integrated rear rack with 130-pound carrying capacity.

For less than $1,000, this is a great deal for bimodal commuters, RVers, vanlifers, or folks living in a small apartment. The standard 10.4Ah battery has a claimed range of 20 to 40 miles. Or bump the range up to 45 miles with an optional 13.4Ah battery for an additional $100.

Salsa Confluence Apex 1

With its 250W Mahle X35+ rear motor, 250Wh integrated battery, and concealed controller, it is hard to tell that Salsa’s Confluence is an e-bike until you get up close. The Mahle drive system operates smoothly and is quieter than low-cost hub motors. This bike’s 40NM torque provides pedaling assistance up climbs and long gradients. However, as a class 1 e-bike, the Confluence lacks a throttle, so you must pedal to engage the motor.

Salsa’s claimed range of 45 miles is not ideal for long days in the saddle (especially when using the maximum assist level). However, Mahle offers a range extender battery (almost twice the stock battery capacity) for longer or overnight trips.

Specialized Globe Haul ST Electric Bike

If you need to haul it all, go with our 2023 Bike of the Year : Specialized’s Globe Haul ST. With a carrying capacity of a whopping 419 pounds, it’s good for a range of riding tasks, from grabbing groceries to dropping Fido off at doggy daycare.

Specialized designed this bike with the average commuter in mind, motivating riders to swap those short- and medium-distance car trips with a bicycle instead. The result is a well-designed short-tail cargo bike with wide 20- x 3.5-inch tires that can eat bumps while keeping you stable and low to the ground. It’s also a blast to ride.

Our test editor Dan Chabanov says it feels much more like a traditional bike than a souped-up e-cargo, which is to say, it’s actually fun. “If you haven’t ridden an e-cargo bike, you might take this for granted,” he says. “But the reality is that even some of the more compact e-cargo bike options out there often don’t ride like a typical bike, or worse, they simply ride poorly. As a cyclist, one of the Haul ST’s most enamoring traits is how much it rides like a ‘normal’ bike. Well, that and the ability to carry a week’s worth of groceries on it.”

Velotric T1

Hybrid bikes combine elements of road bikes (lightweight frame, 700c wheels) and mountain bikes (flat handlebar, wide-range gearing, and sometimes suspension). These bikes offer a compelling combination of traits that can make hybrids the best choice for many riders’ commuting, fitness, or leisure needs.

One of Seplavy’s top choices is Velotric’s T1. Sporty and quick, the bike handles much like some road bikes. Credit that snappy feel, she says, to the T1’s 350W rear hub motor and road bike-like geometry, but also from its weight at 36 pounds.

Velotric packs plenty of tech features into the T1, too. There’s a torque sensor for a smooth and natural pedaling feel and a light-sensing headlamp that turns on when it gets dark. For security, there is a fingerprint lock on the bike plus GPS tracking and theft alert via Velotric‘s app.

Trek Verve+ 3 Lowstep

Seniors come in all shapes and sizes, so it’s difficult to recommend just one e-bike model for every type of rider. But based on conversations with Bicycling members and our experience working in bike shops and at cycling events, many older riders seek a few common traits in an electric bike. They want something easy to get on and off, simple to use, low maintenance, and smooth riding.

Trek’s Verve+ 3 Lowstep checks off each of those boxes. The trusted and smooth-riding Bosch Active Plus motor system powers the Verve+. The 250W mid-drive motor has 50Nm of torque and powers the rider up to 20 mph. This Trek also features a wide-range Shimano 9-speed drivetrain for getting up hills. Powerful and reliable Shimano hydraulic disc brakes handle stopping duties.

The Verve+ 3 Lowstep uses a step-through style frame (it is lower than many other e-bikes) that makes getting on or off the bike easy. It also features a suspension seatpost to smooth out potholes and bumps on the road, and an adjustable height and rise step to dial in your riding position.

Since Trek has hundreds of dealers and company-owned stores throughout the country, you’re never far away from a Trek shop if you need service or repair. Plus, the Bosch and Shimano components are among the most-trusted and durable parts in the category.

Bluejay Premiere Edition

If you’re looking for a fun bike for summer rides around town or to the beach, Bluejay’s Premiere Edition should be on your list. Bluejay combines elements of classic cruisers and townie bikes into a stylish electric bike. We found the bike ideal for trips to the farmers’ market, morning coffee, or weekend brunch and rides with the kids or friends.

A 350-watt Bafang mid-drive motor (powered by a removable 550Wh battery) is at the heart of the Premiere Edition. It uses a torque sensor for smooth pedal response and has a maximum assisted speed of 20mph. Shifting duties are handled by Shimano’s low-maintenance 8-speed Alfine internal hub.

Bluejay sells this model in two sizes (small for riders 5-feet-5-inches and under, and large for riders 5-feet-6-inches and taller) and 15 fun and poppy colors (including Luxe Camel, Hot Pink, and Citrus Orange).

While the Bluejay is a little pricier than some other e-bike options, it comes fully loaded with front and rear racks, lights, fenders, a bell, and an adjustable stem. The rear rack can accommodate up to 55 pounds of cargo and is compatible with a Thule Yepp Maxi child seat (sold separately).

A Few E-Bike Terms to Know

.css-uyz68u{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;font-weight:inherit;font-style:inherit;-webkit-box-pack:start;-ms-flex-pack:start;-webkit-justify-content:flex-start;justify-content:flex-start;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;cursor:pointer;scroll-margin-top:0rem;background-color:#ffffff;color:#000;width:100%;border:0;border-top:0.0625rem solid #e5e5e5;text-align:left;padding-top:0.3125rem;border-bottom:none;padding-bottom:0.3125rem;}@media(min-width: 64rem){.css-uyz68u{scroll-margin-top:3.375rem;}} .css-b4ahb2{border-radius:50%;width:1.875rem;border:thin solid #737373;height:1.875rem;padding:0.4rem;margin-right:0.625rem;} .css-jlx6sx{display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;width:0.9375rem;height:0.9375rem;margin-right:0.625rem;-webkit-transform:rotate(90deg);-moz-transform:rotate(90deg);-ms-transform:rotate(90deg);transform:rotate(90deg);-webkit-transition:-webkit-transform 250ms ease-in-out;transition:transform 250ms ease-in-out;} torque.

Measured in Newton meters (or Nm), torque is a rotational measurement of force—and the number to pay attention to when you want an idea of an e-bike motor’s output. More torque means more power off the line and more boost to your pedaling. 

The heavier the bike, the more torque it needs. Lighter road bikes typically have 30 to 40 Nm of torque, and trail and cargo models (generally) have at least 80 Nm. Most commuter bikes fall somewhere in between.

The size of an e-bike’s battery is measured in watt-hours (or Wh). This measurement represents the energy stored in the battery and how many watts it can deliver each hour. The higher the number, the longer the range, but the faster you go, the faster you drain the battery.

So, if a 504Wh battery paired with a 500W motor gives you one hour of ride time at the highest assist, riding at about half that power will double your range.

Locking Battery

Many e-bike brands seamlessly integrate batteries to make the bike look sleeker (and more like a traditional non-assist bike). Most batteries lock to the bike and come with a key that lets you unlock and remove it, which serves multiple purposes: You can remove the battery and charge it off the bike, plus a locked battery deters (and hopefully prevents) a thief from stealing it. And an e-bike with the battery removed is safer for hauling on a bike rack and lighter for carrying up steps.

Stability and Control

Since e-bikes can maintain higher speeds for longer than standard bikes, you want extra control when riding. Wider tires provide better traction and the freedom to leave the pavement with little penalty, and a suspension fork will help tame some of the rougher roads you might explore. Good disc brakes are a must, too, for slowing a heavy bike at high speed. This is not a place to skimp.

Integrated Lights

Some e-bikes have an integrated lighting system that turns on when you power up the bike. While this is a great feature, it’s not a deal-breaker if your bike doesn’t come equipped this way. It’s just as easy to attach your own since so many great bike lights are available.

Warranty and Service

E-bikes need regular maintenance and repair to stay in good working condition. Because they’re heavier and go faster than non-assist bicycles, e-bikes often require more regular service on parts like brakes, tires, and drivetrain components. We recommend having a good relationship with a local bike shop experienced in e-bike repair to keep your equipment running smoothly.

E-bikes use electronics for their motors, batteries, and displays. These parts are often proprietary to bike brands or even specific e-bike models, making replacement more difficult than parts on non-electric bicycles. Make sure to use the correct electronic replacement parts to avoid damaging your e-bike (or it catching fire).

Established brands usually (but not always) have a good supply of these parts for replacement, even for years after a bike goes out of production. Bosch and Shimano are two e-bike motor manufacturers with some of the most compatibility between bikes and stock parts for previous generations of systems.

Look for e-bikes from brands that offer at least a one-year warranty on electronic components (many brands’ warranties are longer) and make items like replacement batteries for your bike. These parts are usually not cheap (sometimes up to half the cost of a new bike), but it’s the difference between having an e-bike that can be repaired or becomes a bicycle-shaped paperweight if something goes wrong.

Certification

Following a dramatic increase in fires caused by the lithium-ion batteries used in electric bikes, there is a push from local officials, regulatory agencies , and advocacy groups across the U.S. for improved safety certification of e-bikes, batteries, and motor units. On September 16, 2023, a New York City law went into effect requiring that any e-bike sold in the city “has been certified by an accredited testing laboratory for compliance with Underwriters Laboratories (UL) standard 2849”. And in November 2023, Amazon announced it ceased sales of illegal batteries to New Yorkers.

However, just because something is marketed as UL 2849 compliant, tested to UL 2849, or even “certified to UL 2849” does not mean it is UL Safety Certified. Ibrahim Jilani, UL’s Global Director of Consumer Technology, notes: “Certification is always earned by a manufacturer and not a given when they undergo a product submittal. The UL Mark, or any authorized certification mark, can only be issued upon successful demonstration of meeting the requirements of the safety standard.” You can find UL’s updated list of products Certified to UL 2849 here .

We contacted many e-bike brands on this topic. Most companies informed us they are working toward the certification process. So, expect the list of certified e-bikes to grow in the coming months. If owning a UL 2849-certified bike is important to you, ask the brand from which you plan to purchase it for proof of certification. You can cross-reference OSHA ’s Nationally Recognized Testing Laboratories if you want to dive deeper into the topic.

Conversion Kits

Several manufacturers offer kits to add pedal assistance to a non-electric bike. We purchased a few popular conversion kits, fitted them to bikes, and rode them. We do not currently recommend these kits for use. While converting an old bike to an electric assist sounds good in theory, it rarely makes practical sense. Plus, it can lead to rider injury or failure of the bike.

Manufacturers do not design non-electric bikes to accommodate the extra weight and forces incurred when adding an e-bike motor, battery, and control equipment. This puts more stress on the bicycle frame and other components and can lead to breakage or failure of the bike.

Selecting most conversion kits requires knowing fitment details about your bike and might require specialized tools for installation. Many do not have a straightforward installation process, and it can be a challenging project for novice mechanics. If you want a shop to install a conversion kit, check with the shop before purchasing it. Since most non-electric bikes are not engineered to accommodate electric conversions, many shops will not install these kits.

Many economical e-bikes do not cost much more than the total price of a conversion kit plus the installation cost. We recommend buying a purpose-built e-bike for the best and safest experience.

The Three Classes of E-Bikes

After determining which style of bike is right for you, the next consideration is which class of e-bike best fits your needs. In the U.S., there are three e-bike classifications. These are defined by the type of assist and how fast the motor will propel you. Most electric bikes are defined as class 1 or 3. Class 1 bikes have a motor (max 750W) that assists while pedaling up to 20 mph. Class 3 (sometimes known as “speed pedelec”) can have up to a 750W (aka 1-horsepower) motor but can assist you up to 28 mph. Both are allowed in most states and cities without needing a license.

Class 2 models have become more popular with riders, especially at lower prices. These models have a throttle that can propel a bike up to 20 mph without needing continuous pedaling.

Some bikes blur the lines. Aventon’s popular Pace 500 , for example, is technically a Class 3 e-bike in that it reaches speeds up to 28 mph, but it also has a throttle that tops out at 20 mph (the maximum legal speed for a throttle).

Good quality e-bikes can cost a lot of money; purchasing a pre-owned bike is one way to save some cash and get a better model. If you want to shop for a used e-bike in person, some bicycle stores offer refurbished units. Shopping in person allows you to check the integrity and condition of the bike before you buy it. When purchasing from a shop, make sure that the retailer is experienced with e-bike service and that the bike includes the proper charger and battery.

If purchasing a used e-bike directly from another owner on a third-party site, it’s wise to have the bike inspected by an experienced e-bike shop or mechanic before handing over your money. E-bikes experience higher wear-and-tear than non-assist bicycles, and many e-bikes use proprietary parts or require special tools to service or update software.

With the boom in e-bike sales, a few websites have recently sprung up selling reconditioned and certified e-bikes. Often, these e-bikes have low mileage or were sales floor samples at shops—some are even brand new or are new old stock of a previous model year. While it costs more than purchasing from an individual seller, buying a used bike from these sites usually means you have some sort of warranty on your e-bike and ensures that it was inspected properly.

Two sites offering high-quality, certified pre-owned e-bikes include Upway and TPC.

Upway The Pro’s Closet

As Deputy Editor, Tara Seplavy leads Bicycling’s product test team; after having previously led product development and sourcing for multiple bike brands, run World Championship winning mountain bike teams, wrenched at renowned bicycle shops in Brooklyn, raced everything from criteriums to downhill, and ridden bikes on six different continents (landing herself in hospital emergency rooms in four countries and counting). Based in Easton, Pennsylvania, Tara spends tons of time on the road and trail testing products. A familiar face at cyclocross races, crits, and bike parks in the Mid Atlantic and New England, on weekends she can often be found racing for the New York City-based CRCA/KruisCX team. When not riding a bike, or talking about them, Tara listens to a lot of ska, punk, and emo music, and consumes too much social media.  

Kevin Cortez is an editor for Runner's World, Bicycling, and Popular Mechanics covering reviews. A culture and product journalist for over ten years, he’s an expert in men’s style, technology, gaming, coffee, e-bikes, hiking, gear, and all things outdoors. He most recently worked as the Style Editor for Reviewed, a top product recommendation site owned by USA TODAY. He also helped with the launch of WSJ's Buy Side commerce vertical, and has covered the music and podcast industries for Mass Appeal, Genius, Vulture, Leafly, Input, and The A.V. Club. Equally passionate about leisure as he is his penmanship, Kevin dedicates his spare time to graphic novels, birding, making cold brew, and taking long, meandering walks.

Bill Strickland is the Rider-in-Chief of Bicycling . His equal passions for cycling and writing have led to the books Ten Points: A Memoir ; Tour de Lance: The Extraordinary Story of Cycling’s Most Controversial Champion ; Mountain Biking: The Ultimate Guide to the Ultimate Ride ; and The Quotable Cyclist . His Bicycling story, “100 Pedal Strokes” won a National Magazine Award for Interactive Feature in 2008. In 2009, he assigned and edited the story “Broken,” which won the National Magazine Award for Public Interest. “The Escape,” the December, 2011, edition of his Bicycling magazine column The Pursuit, was named a Notable story by  The Best American Sports Writing . Various editions of his books have been translated into Dutch, German, Hebrew, and Japanese. He uses commas by rhythm and sound, which is a terrible way to do it but makes him happy.

.css-1t6om3g:before{width:1.75rem;height:1.75rem;margin:0 0.625rem -0.125rem 0;content:'';display:inline-block;-webkit-background-size:1.25rem;background-size:1.25rem;background-color:#F8D811;color:#000;background-repeat:no-repeat;-webkit-background-position:center;background-position:center;}.loaded .css-1t6om3g:before{background-image:url(/_assets/design-tokens/bicycling/static/images/chevron-design-element.c42d609.svg);} Bike Reviews

This Bike Made Me Laugh, Cry, and Puke—Buy It!

The Specialized Crux DSW Is Simple and Brilliant

Best Hybrid Bikes You Can Buy Right Now

The 10 Best Mountain Bikes You Can Buy Right Now

Giant TCR Advanced Improves on Its Legacy

Speed, Balance, Refinement: Trek's Gen 4 Top Fuel

Tested: Trek’s Eighth-Generation Madone

Specialized’s Stumpjumper 15 Changes Trail Bikes

The 10 Best Cheap E-Bikes You Can Buy Right Now

Reviewed: BMC's Fourstroke LT

New Specialized Chisel Full Suspension Reviewed

• Скидки дня
• Справка и помощь
• Адрес доставки Идет загрузка... Ошибка: повторите попытку ОК
• Продажи
• Список отслеживания Развернуть список отслеживаемых товаров Идет загрузка... Войдите в систему , чтобы просмотреть свои сведения о пользователе
• Краткий обзор
• Недавно просмотренные
• Ставки/предложения
• Список отслеживания
• История покупок
• Купить опять
• Объявления о товарах
• Сохраненные запросы поиска
• Сохраненные продавцы
• Сообщения
• Развернуть корзину Идет загрузка... Произошла ошибка. Чтобы узнать подробнее, посмотрите корзину.

Oops! Looks like we're having trouble connecting to our server.

Refresh your browser window to try again.

Related Searches

• trek 1000 road bike
• 54cm road bike
• bicicleta trek
• aluminum road bike
• trek 400 road bike
• trek triathlon bike
• clarks trek
• project one trek bike
• land rover trek
• single track trek
• alpha trak 2
• trek factory racing

Choosing the right frame size is a crucial part of getting the most out of your road bike. It's not just about comfort: when a road bike fits properly, it's more efficient, easier to handle, and better at transferring your power to the road. Read on to learn about road bike sizing and get help finding your perfect fit.

How to choose your road bike size Bikes come in a range of sizes, and the best fit for you depends primarily on your height and inseam. That's true whatever your gender, as gender matters far less in finding the bike that's best for you than other factors. We recently transitioned Trek road bike sizing from numerical sizing to alpha sizing to help make it even easier to find the right size for you. Want help finding your perfect fit? Our Size Finder tool helps determine your ideal bike size -- all you’ll need is a measuring device to measure your height and inseam!

• Find your ROAD BIKE SIZE

How to measure your inseam

Put on a pair of cycling shorts and stand barefoot with your back straight and against a wall. Use a ruler to carefully measure between your legs from your crotch down to the floor.

Expert advice from Trek Need a hand? We’re here for you! You can connect with your local Trek retailer directly or call and chat online with us at Trek Headquarters, Monday through Friday, 8am to 6pm CT, and Saturday through Sunday, 9am to 6pm CT.

• Find your retailer

Shop road bikes

Find a retailer.