Trek Road Bike Size Chart

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Complete Bike Frame Size Chart For All Bikes

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

Bike Frame Size Chart: Your 3 Options!Method 1 Inseam Length Method 2 General Bicycle Frame Size ChartMethod 3 Advanced Bicycle Frame Size Chart1. Road Bike Frame Size Chart2. Mountain Bike Frame Size Chart3. Hybrid Bike Frame Size Chart4. Beach Cruiser Frame Size Chart5. BMX Bike Frame Size Chart6. Gravel Bike Frame Size Chart7. Womens Bike Frame Size Chart8. Kids Bike Frame Size Chart9. Specialized Bike Frame Size Chart10. Trek Bike Frame Size ChartWhat If You Get the Size Wrong?How Do You Ensure You Dont Get the Frame Size Wrong?FAQs1. What Size Is A 20 Inch Bike Frame?2. What Bike Size Should I Get For My Height?3. What Size Is A 56cm Frame?4. How Do I Find My Best Bicycle Frame Size?5. What Does A 26 Inch Bike Frame?Closing Thought:FAQsVideos

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 youll strain. Thats when you start complaining of backache and knee pain, and thats not all.

Youll 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, Ill offer you the ultimate sizing guide .

What Size Frame Do I Need If I Am In

Sometimes bike sizing charts or our bike size calculator will recommend two different bike frame sizing options. This means that both the larger and smaller road bike frame size or mountain bike frame size recommended will be suitable for you. To help you make the right choice we asked a bike specialist Dr. Barney Wainwright for some advice.

The key measurement is reach which is how long the bike feels in the riding position. Reach is affected by your trunk length as well as the length of your arms. Trunk length, also known as upper body length or sitting height, is the measurement from your hips to your shoulders.

If your trunk length or sitting height is longer than average, then the larger of the two sizes recommended in the size chart will be ideal.

If on the other hand you have a shorter than average trunk height, then the smaller of the two recommended sizes will probably be best for you.

Once you have your bike there are some adjustments that you can make to fine-tune the fit. Have a look at the other videos in our Boardman Performance Centre bike sizing series in our Bike Fitting Guide to see how easy it is to get the right bike fit.

View Our Buying Guides

For model specific sizing please check the Sizing Tab on the product page of the bike that you are interested in.

Please note all sizing information is to be used as a guide only. This is because bike sizes can vary for different brands and models. If you are unsure which size bike will be best for you, our bike specialist team are here to help. Call us on 01792 346501, chat with Live Help or email and we will be happy to assist you.

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Trek Bikes Size Chart Vs Height Guide

Planning to get a Trek bike but unsure which size is ideal for you?

The table below is the latest sizing chart vs height from Trek for all their bikes.

Things to note :

  • Some models have overlapping sizes. If youre between sizes, consider going for the smaller size to have more control of the bike.
  • The bike sizes below apply to both men and women cyclists.
  • Measure your inseam at home to have a general idea of your bike size.

Womens Bike Size Guide

Trek Bikes Size Guide

Steve Behr

Weve put together some broad suggestions on bike sizing below, based on rider height. Its important to remember that this is just a rough guide to help you narrow down your search for the correct-sized bike.

Every persons anatomy is different, so everyone will have different fit requirements. For example, if you have short legs , the standover height of a frame is likely to be of increased importance.

In this scenario, it may be preferable to ride a smaller frame, or a frame with a more compact geometry, and compensate with a longer stem, increased saddle setback or a combination of both.

The best advice we can give you is to consult a professional bike fitter before making an expensive purchase because they can take your individual requirements into account and make recommendations about sizing and fit accordingly.

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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 wont focus on the frame size as its unreliable in this case. Well focus on the wheel size instead.

And when talking about the wheel size, youll 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

For such, youve to see what the manufacturer recommends. For others , you can use the table that follows.

Rider Height

Trek Bikes Sizing Guide

The right size bike for your height is essential to ensure the optimum experience, comfort, and enjoyment as you ride. With sizing varying between the type of bike and even the model, we compiled a guide to help you get the correct size of Trek bikes. Alpha size is easier to understand and enables you to find the right fit by the measurement that matters most.

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A Separate Womens Bike Size Chart Is Not Needed

You might not believe it, but the charts above also work for women. They are all the perfect womens bike sizes. We have been fed so many tales about how women need specific bikes and kits. We have all heard the stories of women having a smaller torso than men, therefore needing smaller top tubes.

If you take a woman and a man of the same height, the man will have longer legs, and the women will have a longer torso. The myth is purely anecdotal and is not helped by high heels and the cut of womens trousers. It is a prevalent myth, and one that needs to die. There are references below if you want to know more.

The secret to a womens fit is a womens specific saddle. There is a caveat to this though: 10% of women have a pelvis shaped like a mans pelvis. What women need is a bike that fits, so dont be taken in by the shrink it and pink it marketing. Trek, for instance, has sizing charts that dont change due to gender, but they do pink bikes with a womens specific saddle.

The bicycle size charts are not the end of the story. You can further dial your bike fit and size needed by knowing how to calculate your bikes saddle height. Your saddle height is the most important contact point that you have with your bike.

Your Reach Do You Have A Good Ape Index

How To Choose The Correct Size Of Road Bike Frame

Your reach measurement becomes important if your height and inseam measurements put you in between sizes. In that case, use your reach measurement to decide.

You need to know if you have a long or short reach, which means you need to find out your ape index .

  • If you have a positive ape index then you have a long reach and you should probably go for the larger of the sizes.
  • If you have a negative ape index then you have a short reach and you should probably go for the smaller of the sizes.

For example, say you have an arm span of 160 cm and a height of 160 cm. This would mean your arm span is exactly the same as your height. So, you have an ape index of 1, and therefore an average reach. However, if your arms are shorter, you have a short reach, so if you are between frame sizes, go for the smaller frame size.

Recommended Reading: Specialized Women’s Road Bikes

Measure Height Without Shoes On

  • Standing with your back against the wall, legs straight but not locked for best result.
  • Stand up as tall as possible when taking this last measurement.
  • Note: Your bikes geometry is one determining factor in how much clearance youll need between your head while sitting versus standing. If you have long arms it may be worth considering sizing down so there is a little more room when standing.

    Height And Inseam Are The Key Factors

    Height and inside leg measurement remain the key factors. Keep this in mind and make sure your child can comfortably stand over his or her bike.

    This is especially important for safety for kids bikes they need to be able to stop safely, and get off safely. Dont put them off bikes for life by making their early experiences scary. Which brings us to the next point.

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    How Do You Ensure You Dont Get The Frame Size Wrong

    Though the sizing chart is essential, it doesnt 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 bikes top tube 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, youll 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 also determines your comfort. Note, however, that the Reach is only essential for road bikes.

    Its 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 its behind, the Reach is long.

    The good thing about the Reach is that its adjustable. Youve to be careful, nonetheless, not to mess up with the bike handling.

    d) Leg Extension

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

    Gaia Realini Steps Up Her Game Joins Trek

    Trek Women S Road Bike Size Chart

    There is no doubt that Gaia Realini has been one of the fastest-rising talents in the cycling world. She has made quite some accomplishments at just 21 years of age. And now, The rider is all set to step up her game by signing a contract with the world-level team, Trek-Segafredo. The contract will be effective from 2023.

    View this post on Instagram

    This switch has always been a dream for the Isolmant-Premac-Vittoria rider, who is overjoyed with the realization of it. Realini conveyed her happiness in simple words, saying:

    This is a dream that comes true, I am super excited,I have always looked at Trek-Segafredo as the best team in the peloton. A unique style, the image of the perfect team. I couldnt really ask for better for my future.

    Gaia Realini entered the cycling world at Giro dItalia Donne 2021, where she managed to turn quite a few heads with her performance. She stood second in the youth classification while finishing 11th overall. She also finished twice in the top 10 at Prato Nevoso and Riale Di Formazza Cascate Del Toce. She continued to outperform herself at the Giro this year as well. While she took the third position in the youth classification, she became the top climber.

    Realini knew what big an opportunity the Giro was to showcase her talent and she fully exploited it as well. She said:

    She continued to add:

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    Road Bike Sizing: What Size Bike Do I Need

    Use our guide to ensure you choose the correct frame size

    Riding a bike that doesnt fit is no fun. Its uncomfortable and you risk injury from being too cramped or too stretched out, but knowing what size bike you should buy can be a bit of a minefield. So heres some advice to help you find the right size road bike.

    Finding the right bike starts with the frame shape traditional, semi-compact or compact and size.

    Two bike models of the same stated size can also result in very different positions, so its well worth reading up on the key numbers that affect road bike geometry, what they mean, and how they affect fit and handling to ensure youre buying the best road bike for your needs.

    Getting a good fit means more than just having the right size frame. It also means your bike fits at all the main contact points: saddle, handlebars and pedals. Have a read of our guide to finding the perfect road bike position.

    Beyond the main contact points, standover is also important. You need to be able to place both feet flat on the floor with at least a centimetre or so to spare at your crotch when standing astride the top tube.

    Of course, were not all the same shape and size, so use the information below as both a starting point and a guide. Once youve found the right size bike and got your position close, you can make smaller adjustments to fine-tune the fit. Youll be able to get bike fit advice in person from a bike shop.

    How To Measure Stack And Reach

    Measure your bike from the center of the bottom bracket to the top clamp on a straight handlebar and then multiply that number by two.

    The stack is how high your bicycles head tube sits above its seat, with shorter bikes having lower numbers and taller bikes higher ones.

    The reach is measured from what point at which you should be able to comfortably touch usually this will be when gripping the hoods or right below them all the way back to where it meets up with axel for both front wheels.

    Read More How To Measure Hybrid Bike Frame Size Chart

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    Bike Frame Size Measurement

    Bike frame sizes are based on the height of the bike, measuring the length of the seat post tube the part of the bike that the seat post slide into. This measurement is given in metric for road bikes, and imperial for mountain bikes. On most bikes, the size of the frame will be printed somewhere on this part of the frame.

    At the end of this post, you can view a short video showing how to measure bike frame size.

    Does Wheel Size Affect Sizing Is A Bike Wheel Size Chart Needed

    26″? 27.5″? 29″? Trek unravels the wheel size debate

    On road bikes and hybrids, no, as these bikes will all have a similarly sized wheel. However, on a mountain bike, the answer is yes. Mountains bikes now come in three different wheel sizes. You can find them with 26 wheels, 27.5 wheels, or 29 wheels. If all three have a 15 frame, there will be a height difference between them due to their wheel size. Bike frames are measured from the middle of their bottom bracket to the end of their seat tube. Your wheel axle height sets your bottom bracket height.

    If we take the 26 wheel as the base height, the axle height for a 27.5 wheel will be 0.75 higher. If we then look at the 29 wheel, its axle will be 1.5 higher. This is because the axle sits in the middle of your wheel. We then divide the difference in wheel height by half to get information on how much higher the axle sits.

    A 15 frame will be 15.75 on a 27.5 or 16.5 on a 29. Some manufacturers have worked on the mathematics and geometry to keep the differences closer than this. Others have not.The good news is, we have the option of knowing stack and reach, and this will tell us how close the fit is for you. We have more on stack and reach below.

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    How Is A Bike Frame Measured

    The first step in measuring a bike frame is to determine the length of the bike. Measure from one end of the top tube to the other and make sure it is accurate.

    Next, measure from where you want your saddle to be located on the seat tube down to where you want your bottom bracket at its lowest point on the frame. The distance between these two points will be used as a measurement for how much clearance you have for installing accessories like fenders or racks.

    Finally, measure from left side of head tube to right side head tube and subtract 3 inches from this number so that it reflects how far forward you can go without hitting any obstructions while riding.

    This measurement is important because if you are looking for a new bike with an extra-long top tube, then this number will give you an idea of what type of handlebars and headset sizes would work best with your bicycle.

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