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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4 votes
5 answers
776 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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  • 145
1 vote
1 answer
111 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-...
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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
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4 votes
2 answers
422 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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  • 4,049
-2 votes
3 answers
153 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 ...
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  • 4,049
1 vote
1 answer
676 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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  • 19
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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  • 203
2 votes
2 answers
550 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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  • 4,049
1 vote
1 answer
257 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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  • 51
1 vote
0 answers
76 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 ...
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0 votes
2 answers
107 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 ...
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  • 4,049
1 vote
3 answers
172 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'...
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0 votes
1 answer
57 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 ...
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1 vote
1 answer
120 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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  • 334
2 votes
2 answers
219 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&...
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0 votes
0 answers
54 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 ...
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0 votes
1 answer
109 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 ...
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4 votes
1 answer
693 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 ...
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6 votes
2 answers
173 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
102 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
97 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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  • 53
3 votes
2 answers
198 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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  • 31
3 votes
1 answer
385 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 (...
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2 votes
1 answer
132 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 ...
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1 vote
0 answers
75 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 ...
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  • 11
3 votes
3 answers
309 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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  • 31
1 vote
2 answers
128 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 ...
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0 votes
1 answer
68 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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  • 809
2 votes
1 answer
105 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 ...
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  • 1,447
5 votes
2 answers
396 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 ...
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  • 51
0 votes
1 answer
96 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.
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  • 11
0 votes
1 answer
82 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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  • 201
2 votes
0 answers
69 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.
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1 vote
1 answer
86 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 ...
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6 votes
5 answers
2k 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 ...
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33 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 ...
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  • 351
2 votes
1 answer
291 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 ...
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1 vote
1 answer
43 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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  • 163
1 vote
0 answers
170 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.
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  • 131
5 votes
2 answers
518 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 ...
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  • 629
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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  • 677
0 votes
2 answers
826 views

Optimal front / rear weight ratio

What is your preferred weight ratio between front to rear wheels on your bike(s)? I always assumed 40% front / 60% rear was "normal". I have been experimenting with tire pressure and stem ...
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  • 159
1 vote
1 answer
95 views

Steering Dynamics Question

as I contemplate reducing reach by either 1/ shortening my stem or 2/ shortening my dropbar's reach, I have some questions about whether approach 1 or 2 will have a greater difference on my bike's ...
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4 votes
3 answers
2k views

Properly sizing a frameset online (Ritchey Road Logic)?

Longtime lurker, first-time poster. My frame is cracked and I have mostly decent parts so I am thinking about just buying a frameset and paying the LBS to move stuff over. A friend suggested I look ...
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  • 41
1 vote
0 answers
78 views

Can a 2cm lower ETT and 3cm lower stack make a big difference

I have recently been testing two mountain bikes: one with a 44cm (~17.5") frame, which I bought second-hand and one with a 45.7cm frame (~18"), which I bought new but want to return it as I ...
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  • 241
8 votes
2 answers
533 views

How to tell if my handlebar is really too long?

As some of you already know, I'm putting together a trekking bike. It is mostly to commute where the usual route will be 15km: up to 10km on paved roads and the rest unpaved, including a highway ...
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  • 1,084
6 votes
2 answers
288 views

How can I measure a saddle to buy something similar?

I got on quite well with the stock saddle on my tourer, until recently. That's not surprising as the plastic has broken. The bike manufacturer isn't great for spares, and I'm sure I could do better, ...
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  • 45k
1 vote
1 answer
74 views

Finding dropbar's exact measurement

I have a GT Grade and I'm planning to swap out the drop bar for something with a smaller reach. It's really easy to find the specs of the replacement bars, but harder to find the drop, reach, and ...
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0 votes
1 answer
7k views

Caad10/12 sizing

I'm looking to buy a used CAAD 10 or 12 but since they are quite far away, I can't test ride them so I'll have to guess the correct size. I am 173cm tall and an inseam of barely 80cm without shoes. I ...
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5 votes
1 answer
206 views

Saddle Position

I am a newbie to biking. I got my bike fitted in a local bike shop. I feel comfortable riding it. However, I feel (by looking at it) that the saddle is fitted way too back. It looks as if the back ...
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