Questions tagged [bike-fit]

How to get the right sized bicycle for you or adjust your bicycle to fit you better.

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2 votes
1 answer
52 views

Specs to take into account when changing frame on Enduro MTB

The frame of my Enduro MTB is cracked and needs changing. The bike is 10 years old so I will look for a second hand frame and I'd like to be able to use as many of my current parts as possible. What ...
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3 votes
1 answer
53 views

Adaptative Pedal or crank for a handicap user

I encountered a person with a disability in one leg. They are unable to control their ankle/heel movement. They are unable to maintain their foot parallel to the floor at the top of the pedal stroke (...
7 votes
4 answers
940 views

Bike measurements for a short stubby guy

I have short legs and a 27 inch/68.5cm inseam. I am 5'6"/1.68 m tall, and I am looking to get back into exercising. I was wondering what bike measurements for a road bike I would be looking for ...
3 votes
1 answer
40 views

Giant TCR advanced ( 2016 ) Carbon Seatpost

I have been considering making a foray into road bikes and ended up picking up a pretty pristine Giant TCR advanced 2016 bike for a bargain. I bought a size M and ended up figuring out that I actually ...
8 votes
1 answer
990 views

Do smaller riders tend to need a wider saddle?

I was looking at Trek's website and noticed that on some of their bikes they spec a wider saddle for small sizes. This is on one of the 2021 Checkpoints. Is this a general rule of thumb, that shorter ...
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6 votes
1 answer
698 views

My arms hurt when riding

My lower back bends a lot and the weight goes to my arm. What is the problem?
  • 373
10 votes
6 answers
2k views

Tradeoffs of larger/smaller bicycle sizes

Due to the supply chain issues of the past couple of years, it has become difficult to find the ideal bicycle locally. More and more people consider purchasing online, which means that they cannot try ...
4 votes
4 answers
174 views

How should clip on aerobars be adjusted to the user?

The context here is an endurance setup, with a fit optimised for the hoods/drops. Clip-on aerobars are being fitted to give an additional hand position especially into sustained headwinds; this very ...
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10 votes
3 answers
1k views

Does a bike fit "carry over" from one bike to another?

If I would pay for a professional bike fit right now for a road bike, and I get a new road bike after a while, can I somehow translate the fit from my current bike to the new one (either by myself, or ...
4 votes
5 answers
905 views

How to choose frame size as a non-flexible person?

I've been commuting regularly to work during the last four years and I would like to get a road bike to replace my old city bike and enjoy some cycling on the weekends. I've been looking which bike ...
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1 vote
1 answer
135 views

Does a smaller than recommended frame size cause problems?

What problems, if any, should I expect from an undersized frame, and how small would the frame have to be before these issues occur? For the sake of the question please assume an older steel diamond-...
0 votes
0 answers
40 views

question is can I put 27.5 rims/tires in place of the 29ers [duplicate]

I currently have a motobecane 29er, and it is to tall and beyond time i can exchance it, question is can I put 27.5 rims/tires in place of the 29ers
4 votes
2 answers
534 views

How do I determine a suitable handlebar width on a fatbike?

Fatbike owners seem to be fond of using lavishly wide handlebars. They also don't just go from 640mm or 660mm to 680mm or 700mm, but often to 720mm or 740mm. I'm assuming their shoulders couldn't be ...
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-2 votes
3 answers
157 views

Is it sometimes best to abandon the make/model you really like and go to a different make/model because you're right in-between sizes?

When shopping for a bike, do you commit to a make/model from the outset, select a size, then fine tune the bike to fit you, or choose a make/model that makes it possible to pick a size that fits you ...
  • 6,215
1 vote
1 answer
709 views

Making bigger steel frame smaller

i bought old Peugeot carbolite 103. With size 60cm which is very big for me, so I have an idea to cut it to 50cm. Do you think it's worth it and the risks? Edit: Guys thanks for the fastest ...
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10 votes
4 answers
2k views

I'm an absolute beginner in bike touring, about to buy a bike. Is it worth it to hire a bike fitting service before the purchase?

I'm an absolute beginner in bike touring, about to buy a bike. Currently I'm using local shared bikes and I always wanted to start my adventures on a bike, camping and so on. Given this, is it worth ...
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2 votes
2 answers
584 views

What are, if any, the signature postural differences between riding a 26″ bike and a 29″ bike?

Briefly One way of asking In the video accompanying Michael Jackson's "Black or White", people of various ethnicities are morphed to one another. Suppose you are looking at someone riding a ...
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1 vote
1 answer
711 views

Is my bike frame too big if the top bar touches my testicles?

A bike was given to me for a gift and I am a male with testicles and if I stand in front of my seat the bar touches me on my testicles. Do avoid this I have to stand on my tippy-toes. Is the bike too ...
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1 vote
0 answers
78 views

New Bicycle Advice? See detailed Specs Below [closed]

I am getting "snow blindness" and don't know where to start but the main thing is my new bicycle is my transportation every day sometimes for several hours and it's also my outlet to blow ...
0 votes
2 answers
151 views

Sit bones and the saddle's curves

Consider two twins, a brother and a sister. They are of identical height. They have precisely the same arm length. Their legs (both femur and tibia) are exactly the same lengths. But, as would be ...
  • 6,215
1 vote
3 answers
365 views

Is my hybrid bike too big for me?

I just bought a secondhand Raleigh C40 hybrid off Facebook. It generally seemed like a good bike but I'm definitely a bicycle noob. The lady who sold it to me was maybe an inch taller than me. I didn'...
0 votes
1 answer
60 views

Can you adapt a 16" bike frame for a 6'2" person with a longer stem?

I am riding a bike which is not well fit to my body. I believe it has a 16" frame and I have to awkwardly hunch my back to hold the handlebars. Is it standard to get a longer and higher stem for ...
1 vote
1 answer
145 views

Impossible/wrong frame length calculation?

I have been riding daily a Holland style bike (upright posture) for quite a long time. I now ordered a new e-bike online, with a more conventional shape (so I don't have a good body feeling for how I ...
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2 votes
2 answers
386 views

Has anyone experience in using a Thomson Elite Setback Seatpost in the forward position?

Background: 54cm Cervelo R5 2013 with original UO Carbon seatpost. Seat is set as forward as possible and I'm using a shorter handle stem. Problem: Bike fitter stated I've got the body of someone 5'4&...
0 votes
0 answers
72 views

What risers do I need for my Profile Stryke Carbon Ironman aero bars?

I'd like to improve my comfort on the bike a bit by raising my elbows and shoulders when I use my aero bars. I have Profile Stryke Carbon bars presently. The bars themselves are clamped under my ...
0 votes
1 answer
111 views

How can I shorten the frame of a "Duchie shopper" bike?

The cycle is a "Duchie shopper". The bike is to big for my wife. Is it possible to shorten it for her? She is 5 ft (152 cm) tall. The bike has a 27 inch wheels. I want to shorten it by ...
4 votes
1 answer
903 views

Mtb vs Road Pedal Stack Height

Recently went from mtb pedals( shimano pd-m520) to road pedals (spd-sl pd-r7000) on my road bike. I feel that saddle is a little bit higher for the road pedals. Is the stack lower on road pedals ...
6 votes
2 answers
177 views

What to check when trying a bike from a shop?

A common answer when people ask about frame size/geometries is to go to the local bike shop and ask to try the bike. No discussion of course, in an ideal world, it would be better to be able to try a ...
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0 votes
1 answer
118 views

Is it okay to have a slightly larger frame on a fixie?

I recently bought a new bike frame, and I'm thinking if there might be some issues since the new frame's a bit larger than the old one. The old frame was size 50, the new one's 52. I did some ...
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0 votes
0 answers
106 views

Can I use mtb rigid fork in touring frame?

I am looking to change my fork because of some issue(broken). My problem is my headtube is the standard ec34, which is why I can't use tapered fork. So, I am looking at some mtb rigid fork, which have ...
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3 votes
2 answers
279 views

Should I buy a little bit bigger bike?

I want to buy a mountain bike for the summer to ride with my friends, go on shorter rides (max 6 hours) and use in town. I am approximately 175 cm tall and 16 years old (so I might grow a bit). My ...
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3 votes
1 answer
603 views

Salsa fargo sizing

I am looking for a new salsa Fargo, mainly as a bikepacking tool and also light gravel racing. My problem is with the stand over, I have very short inseam(67cm) and long torso and hands for my height (...
2 votes
1 answer
153 views

Bike fit - comparison of similar geometries

I'm usually riding my hybrid Giant Roam but recently I've been given a 2nd hand Decathlon 27.5 MTB for free and I've started hitting some mountain bike roads (not trails, more like forest paths, fire ...
1 vote
0 answers
77 views

Getting the correct road bike size, moving from MTB

Currently I have a Large Stumpjumper 2021 29er. The size was advised by the shop I purchased it from. It was OK at first but I ended up having a bike fit to adjust a few things (slightly longer stem ...
  • 11
3 votes
3 answers
459 views

How to fix numb hands on new gravel bike despite professional fitting and shorter stem?

I just bought a new Salsa gravel bike with carbon frame. Despite a professional fitting and shorter stem my hands get numb after only a mile. I wear padded gloves when riding. I have ridden a Trek ...
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1 vote
2 answers
131 views

When using a front mounted child seat, will it be better to size up or size down on a Mountain bike (I'm right on the boundary between sizes)?

I'm buying a mountain bike and come in exactly on the boundary between medium and large women's frame sizes. I used to commute by bike in a city several years ago so fairly confident cyclist but would ...
0 votes
1 answer
76 views

Confused about frame size [duplicate]

I am trying to determine the right frame size for myself before purchasing a hybrid bike. My height is 174 cm and I have an inseam size of 85 cm. If I go by the height it should be a medium frame ...
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2 votes
1 answer
117 views

How can I measure what is a relaxed geometry frame?

I would like to know If a frame would suit me for really long distance riding (100-200km). I have read about the stack to reach ratio, which for example for one of my bikes that is comfortable for me ...
  • 1,477
5 votes
2 answers
523 views

What's the ideal balance (forward/backward) in the saddle on an endurance road bike?

I got my first road bike (and found I favor endurance riding position), and I can't figure out if I'm positioned well in the saddle. It's as far aft as it goes, but I still feel like I'm falling ...
  • 51
0 votes
1 answer
97 views

What is the best bike for me? [closed]

I'm a man 5'8" planning to get a new bike as a beginner. looking for going around the city + fitness. My budget under $800. The bike that I need it should make me fall in love with Road bikes.
  • 11
0 votes
1 answer
212 views

Original fork 1'', new fork 1 1/8''

I put a picture of my original frame. The internal diameter of the straight cylinder is 31mm. In this frame was installed an original fork of diameter 1''. I would like to buy this fork : https://www....
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2 votes
0 answers
70 views

Options for online fitting

anyone know of good options for a remote/virtual fitting service? I'm not looking for an app, but rather personalized fitters that have moved to remote during Covid. Thanks.
1 vote
1 answer
90 views

Changing tyre size [duplicate]

A very basic question, sorry! I have a Giant hybrid bike, that currently has 700x38 tyres on 622x29 rims. I need to replace the tyres, as they are getting old and was wondering if I could change the ...
6 votes
5 answers
3k views

Can I fix my very small bike with a bike fit?

I used this bike for about 140kms and when my last 55 km ride was over I was feeling pain in my elbows and numbing on my arms so I started looking into my bike size and fit. It is a new bike so I ...
34 votes
11 answers
8k views

I am a beginner to commuting by bike and I find it very tiring. Is it my fitness level or my single-speed bicycle?

Foreword: Sorry if this seems a bit long-winded. TL;DR: I can't figure out if there's something wrong with my bike or if I'm just out of shape. What's your opinion? I got the bright idea to commute to ...
  • 361
2 votes
1 answer
373 views

Shimano Adjustable Crank Arm Length

I currently run Shimano 105/Ultegra/Dura-Ace (2X11) components on my road bike. Chain Dura-Ace Cassette & Crank 105 Derailleurs Ultegra I am looking to replace my cranks when I wear out my next ...
1 vote
1 answer
49 views

Replacement guide for different cleats?

I'm planning to replace my wellgo 6 degree float to look keo grip 9 degree float. I've searched for cleats replacement guide online but most of them only caters to replacing identical cleats. I'm ...
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1 vote
0 answers
201 views

Surly disc trucker 26 frame size

I am 176 cm height (with 85 cm inseam). What will be my frame size for Surly disc trucker 26? Will size 56cm fit or be too big? I cannot find a size for this model. Thank you in advance for your help.
  • 131
5 votes
2 answers
619 views

Why are so many ramps on dropbars tilted downwards?

When looking at drop handlebars, it's noticable that most ramps are tilted downwards. I find that rather uncomfortable for my hands as they slide down into the hoods of the brake levers and get ...
  • 639
9 votes
2 answers
2k views

Why don't seat tube lengths on modern bikes match their assigned sizes?

I was under the impression that bikes were sized according to the seat tube length; thus, a 56 cm frame would have a 56 cm seat tube length. However, on some modern bike frames (see Specialized Tarmac ...
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