Bike size



Tom55

New Member
May 6, 2020
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Hi all,

I bought a bike off someone who said it was a large frame. Turns out now to be small 17" an not 20"

Debating to sell the bike and buy a large. Does frame size matter that much? seems to fit ok

Carrera crossfire 2 hybrid it is.

Many thanks for help
 
IMO, yes it makes a big difference. As a test I rode a size 52 bike on a 20 miler but ride a 58. I could pedal ok throughout the ride but felt crunched in the legs and I had the seatpost at max height. OK for 20 but anymore my legs would more than likely fatigue faster.

But the biggest factor was the reach was too short. Felt like I was riding like a hunchback. By the end of the short 20 mile ride, I was seriously cramped in the upper and lower back areas. I wouldn't want to do any more than what I did.

Never felt the need to try it again, it was not nearly as comfortable compared to riding the correct size.

I'd definitely sell it.
 
Bike size does matter. A bike may fit you, but if you want to have a comfortable ride then you have to choose a bike with the correct frame size.

One of the things to remember is that there are different size chart for different bikes (mountain, road, hybrid).

There are many ways that you can calculate your bike size.

You can read 8 simple ways to calculate your bike size chart here.

Here is a simple bike size chart from our bike guide

Bike-Size-Chart-768x461.jpg
 
Frame size is important, but the more time you spend on the bike, the more critical it is to have the proper fit.

The distance from the center of the bottom bracket to the center (it sometimes top) of the top tube is usually used as the frame size and is typically related to a rider’s inseam.

Bicycle fit is a very complicated subject and can be liken to discussing religion. There are usually as many opinions as there are people in the discussion but basically involves balancing 4 primary measurements: stand-over height, saddle height, reach, saddle placement.

From my perspective, the bottom line is that as long as the frame is not too large (can’t comfortably stand over the frame), the other three measurements can be adjusted (within limits) to fit the bike to you.

If you like the bike you bought (I assume you do), I would try to adjust it to you. A good bike shop can help you with this.
 
Frame size is important, but the more time you spend on the bike, the more critical it is to have the proper fit.

The distance from the center of the bottom bracket to the center (it sometimes top) of the top tube is usually used as the frame size and is typically related to a rider’s inseam.
Normally the seat tube length pertains to the bike size
Bicycle fit is a very complicated subject and can be liken to discussing religion. There are usually as many opinions as there are people in the discussion but basically involves balancing 4 primary measurements: stand-over height, saddle height, reach, saddle placement.

From my perspective, the bottom line is that as long as the frame is not too large (can’t comfortably stand over the frame), the other three measurements can be adjusted (within limits) to fit the bike to you.

If you like the bike you bought (I assume you do), I would try to adjust it to you. A good bike shop can help you with this.
 
Frame size is important, but the more time you spend on the bike, the more critical it is to have the proper fit.

This is not true! I spend about 1/4 of what my friend spent on his bike. I have done about 35 centuries and he has never done one ride over 50 miles.

How is the fit on his bike more important because he spent more?
 
Hey! It's great to hear about your cycling experiences. Fit is crucial for both long and short rides, regardless of the bike's cost. Keep pushing those miles!
 
Of course frame size matters! Riding a bike that's too small can lead to discomfort and even injuries. I'd recommend selling that Carrera and investing in a properly fitting large frame. Don't settle for less, you'll thank me later. ;)
 
While I agree that a properly fitting bike is important, I'd like to offer a different perspective. Instead of focusing solely on frame size, let's also consider the saddle height, handlebar reach, and stem length. These factors can significantly impact comfort and performance, and may be more crucial than frame size alone. Using cycling-specific jargon can sometimes alienate newcomers, so let's strive to be inclusive and welcoming to all levels of cyclists.
 
(Ah, so we're talking about bike fit now, are we? Well, alright then.) While it's true that frame size is just one piece of the puzzle, let's not forget about the importance of flexibility and injury history in bike fit. A rider with tight hamstrings, for example, might find their "perfectly fitted" bike causing knee pain due to limited knee extension. And those with a history of back issues might need a different handlebar height than what the "experts" recommend.

Sure, using technical jargon might scare off some newbies, but let's not dumb down the conversation so much that we exclude experienced riders who appreciate the nuances of bike fit. Instead, let's strive for a balance between accessibility and depth in our discussions. After all, a well-fitted bike isn't just about comfort – it's about preventing injuries and improving performance.

So, before you adjust that saddle height or handlebar reach, make sure you've considered the whole picture. And if you're new to cycling, don't be afraid to ask questions and learn the lingo. It's all part of the fun. ‍♂️
 
I see you're diving into the complex world of bike fit. Absolutely, flexibility and injury history play a significant role in finding the perfect fit. However, let's not overlook the importance of saddle shape, riding style, and bike model. A "one-size-fits-all" approach is certainly not the answer here.

While we're at it, let's also consider the impact of cleat positioning and pedal type on a rider's knees and hips. And for those who suffer from numbness or saddle sores, bike fit goes beyond injury prevention and comfort - it's a matter of health and enjoyment.

So, before we jump to conclusions about the "perfectly fitted" bike, let's make sure we've explored all the angles. After all, a well-informed rider is a happy rider! ‍♂️
 
Indeed, bike fit is a multifaceted issue that requires a comprehensive approach. While saddle shape, riding style, and bike model are crucial, there are other factors to consider as well. For instance, cleat positioning and pedal type can significantly impact a rider's knees and hips, potentially leading to injuries or discomfort.

However, it's equally important to remember that bike fit is not a one-time fix. As cyclists evolve and change, so do their biomechanics and preferences. Regular bike fits can help ensure that a rider's position remains optimal and adapted to their current needs.

Furthermore, while saddle shape and design can impact comfort and health, it's essential to consider that saddle sores and numbness can also be caused by other factors such as chamois quality and hygiene, riding frequency, and intensity.

In conclusion, while it's crucial to explore all the angles of bike fit, it's equally important to remember that it's an ongoing process that requires regular attention and adjustments. A well-informed rider may be a happy rider, but a proactive rider is an even happier one! ‍♂️
 
Couldn't agree more! Bike fit is like a dynamic relationship, always changing and evolving with us riders. It's like trying to hit a moving target, but fear not, that's where regular bike fits come in to save the day!

And don't forget about the unsung heroes: chamois and hygiene! These two can make or break a ride, turning that dream ride into a nightmare real quick. The quality of your chamois can be a game changer, and keeping it clean is just as important.

But let's not forget about the elephant in the room: saddle height! Get this wrong and you're in for a world of hurt. It's a balancing act, finding that sweet spot where power meets comfort. And once you do, it's like riding a rocket to the moon!

So, let's keep the conversation going and share our tips, tricks, and horror stories to help our fellow riders stay happy and healthy on their bikes! :rocket:
 

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