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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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3
votes
3answers
206 views

Alternatives to shorter cranks for knee pain

I've recently developed pain at the front of my knees when cycling. I suspect this is caused by, or at least made worse by, my bike having cranks that are too long for my leg length (172.5mm cranks ...
1
vote
1answer
74 views

Bike Fit for 5'3" (1.60m) woman, 47 or 51 cm?

My issue is that I have a 51 cm Cervelo, but the reach is too far. I've tried changing out handlebar stem to shorter/angeled, spacers and smaller handlebars. That helped some, but still a little too ...
17
votes
18answers
16k views

Is reversing the stem (pointing it backwards) a safe way to reduce reach length?

Assuming a steerer/fork/brake/cable setup that does not rely on the stem facing forward: is it safe to point a stem backwards as a way to reduce seat-to-bar reach (i.e. as a way to 'fit' a too-large ...
3
votes
1answer
349 views

Balance bike: fitting smaller wheels

I'm building a balance bike for a daycare kid. He is tall so I have a longer frame for him, but I think the tires might he too big. Can I put 12.5" tires on forks for 16" tires?
0
votes
0answers
53 views

Bugging out on bike fit frame size

I recently upgraded to a new bike (Tarmac 2019) and got a size 58. I also got a bike fit by a local fitter. When we finished the fit there were a few tweaks including moving the saddle up several cm (...
0
votes
7answers
534 views

Choosing the right size frame

I'm planning to buy a bike. Based on my height (I'm 5 foot 6 inches / 167 cm) people suggested me to go for anything between 17"-18" frame. When I calculated its coming as 17.5" My dilemma is if I ...
1
vote
2answers
776 views

Should I choose 26“ or 28” size BTWIN Triban 100 with dropped handlebar?

My height is 5 ft 9.5" (176.5 cm). I went to Decathlon and tried out both the 26" and 28" bicycles there. Both sizes felt comfortable. But I cannot really tell unless I ride for a long distance. I had ...
26
votes
5answers
58k views

Should my foot be able to step flat on the ground, when I sit on a bike seat?

I was wondering, for a correctly sized mountain bike, or hybrid, should I be able to place my foot flat on the ground, when I sit on the bike seat?
7
votes
5answers
3k views

Adding gears to my grandson's 12" bike

My grandson has the kind of bike you pedal backwards to brake, and he goes riding with me on my days off. Yesterday, he asked me if we can convert his bike because we have looked everywhere and no ...
20
votes
13answers
10k views

How can bum / testicle / inner thigh pain from a saddle be prevented?

I occasionally commute a 50miles round trip and by the end of it, things are usually not feeling very good down below. I've tried a couple of different saddles, but they both gave me problems. One ...
1
vote
1answer
50 views

Replacing broken road fork with same model but shorter steerer tube. What can I expect for handling issues?

My road bike is an '05 Trek 1000 54 cm frame size. The Bontrager carbon fork (Satellite Plus) was destroyed in a non riding accident. I have found on eBay a replacement fork--same model , identical ...
0
votes
0answers
56 views

How many degrees does the stem of a Canyon integrated cockpit rise?

I am plotting a Canyon Ultimate bike on BikeCad, but I can't find how many degrees the stem rises. The stem is part of the Canyon H36 integrated cockpit. In general, manifacturers of integrated-stem ...
0
votes
1answer
64 views

Mountain Bike has 26 x 2.125 Tires on, Can I Fit 26 x 1.95? [duplicate]

My mountain bike has 26 x 2.125 tires on it and I am ordering new 26 x 1.95 tires. Will these be okay to use? What issue might this cause? Or will the difference be negligible?
0
votes
1answer
104 views

Can moving cycling cleats forward be a good way to train our calf muscles?

A good bike fit is known to increase power transfer and endurance because it balances our muscle groups. Interestingly, bike fitters often recommend moving the cleats back to put less load on our ...
0
votes
2answers
84 views

Would longer axle to crown be ok?

I have a Trek 820 2014 26 inch for which I had the lbs convert to rigid fork. The original suspension fork was a suntour m3030 which the manufacturer states has a 63mm travel for my bike size. I lost ...
1
vote
1answer
113 views

How should a bicycle fit? [closed]

What are the characteristic features of a bicycle well-fitted to its rider? Are there a standard set of "rider positions" that we talk about in bicyle ergonomics? What are the standard tolerances ...
0
votes
1answer
91 views

Is a 22 inch road bike appropriate for a 5'9" person? [closed]

I am admittedly a beginner and looking to purchase a used single speed bike just to casually use around the neighborhood. I came across this listing: https://nashville.craigslist.org/bik/d/...
1
vote
3answers
409 views

Bike fit: Adjusting stem angle vs. height

I'm playing with my fit a bit as I have gotten much more flexible since I had a bike fit 2 years ago (+1 to stretching and foam rolling.) As I'm experimenting with drop I am wondering if it makes ...
0
votes
1answer
283 views

Bike size advice Bianchi vs Cannondale

I have been after a Bianchi Via Nirone 7 for more than one month and an half without much success. The main reason is that they don't produce many 47cm frames, while 47cm would be my optimal size. In ...
0
votes
3answers
135 views

Anything wrong with using MTB saddle on hybrid bike

I'm been having problems with fit on my hybrid. When I spend around 1hr on the saddle I start to get pain in the left prostate. I can no longer ignore the problem because I plan to do C2C. Right now ...
1
vote
1answer
171 views

Since seat tube angle has little effect on max power output, why not adjust the reach with saddle setback?

According to this article, a seat tube angle between 65 and 110° has little effect on max power output. At most, it varied 1%. https://www.me.utexas.edu/~neptune/Papers/jab26%284%29.pdf Adjusting the ...
3
votes
4answers
90 views

Fitting question for first trekking bike - differences in stack and reach

I understand this might be a pointless/dumb question, but as an bike freshman, I am confused: Trying to select an entry level first bike (cross/hybrid) and so far I'm between two of them (local EU ...
33
votes
9answers
114k views

Is it possible to measure your sit bones at home?

Some bike shops have gel pads that you sit on to measure the distance between your sit bones. Is it possible to take this measurement on your own at home, or does this really require special-purpose ...
1
vote
1answer
235 views

Posture on mountain bike long term

I have been looking at sizing guides because I'm contemplating ordering a new bike and found out that I'm the totally wrong size for the bike I actually have. I'm normal proportions and 5 foot 7, but ...
5
votes
7answers
18k views

Starter Road Bike for Tall Man [closed]

I'm a marathoner that is interested in mixing in some duathlons and triathlons, but I am having trouble finding a starter bike (< $1500) made for a tall man. I am 6'6". Any brands and models that ...
4
votes
4answers
2k views

I have a hybrid bike which the frame is too big, is there any modifications I can make to make it more comfortable?

I bought a hybrid bike from halfords around 6 months ago, however i have only recently had chance to ride it. I have found that the frame is too big, they wont exchange or give me a refund. I was ...
2
votes
4answers
2k views

Saddle position for a long steep climb

Various sources indicate that when climbing to slide back on the saddle. In about a month I plan to attempt Whiteface Mountain with its 13 km at an 8% grade. If I manage this climb I will be at my ...
0
votes
2answers
100 views

New bike but no idea on inner tube size

I bought a new bike a few days ago, Cannondale Bad Boy 3 2019 which gets delivered in a few days. https://www.cannondale.com/en/Europe/Bike/ProductDetail?Id=7f48452b-f9eb-4e10-89e7-4a7550944bfa ...
7
votes
2answers
4k views

How come some cyclists lean forward at a 45 - 60 degree angle and I don't?

I just wanted to ask how come some cyclists when they ride they lean forward, with their arms straight, resemble a 45 to 60 degree angle (which looks cool by the way). I have a hybrid bike and I wish ...
1
vote
2answers
157 views

What is the proper placement of the feet on the pedals when viewed from the top?

When placing my feet on the pedals with the balls on it, the outer part doesn't fit the pedal anymore. If I moved the foot backwards, the pinky would not be on the pedal anymore. I wonder if that is ...
14
votes
11answers
21k views

Pins and needles in my fingers after long rides

I've started to get pins and needles in my little finger and the finger next to it some times after riding for over an hour. The roads are quite rough and vibrate my handle bars quite a lot. I also ...
2
votes
2answers
123 views

Can wearing padded cycling shorts versus regular shorts affect the adjustments during a bike fit?

Can wearing padded cycling shorts versus regular shorts affect the adjustments during a bike fit? My bike fitter who uses the Retul system requires tight fitting shorts so that the LED markers don't ...
8
votes
3answers
133 views

Bicycle design for a crooked hip

One of my hips turns out a bit more than it ‘ought’ to. It doesn't affect my walking, but on a bicycle it means that my knee on that side must transmit force at an unnatural angle. It was less of a ...
2
votes
1answer
95 views

Bike sizing question - are these two sizes actually that different?

Could use some advice on bike sizing. I'm in the market for a new commuter and after a lot of research I ended up picking this one: https://www.bergamont.com/gb/en/product/bergamont-vitess-n8-belt-...
1
vote
2answers
146 views

Long stem influence on cyclocross handling

I want to introduce myself to the cyclocross world, I'm looking for my first bicycle. I found a great used bike with a frame at size 54 (54 seat tube x 54,5 top tube), which would be slightly small ...
1
vote
2answers
973 views

Large vs small stack & reach

I'm looking at getting a new bike, but struggling with the most suitable one given the different geometries. Given a particular torso angle, is there an optimal stack & reach? A large S&R ...
3
votes
2answers
153 views

Can I setup my road bike, mountain bike, and fat bike with the same set of shoes with MTB SPD cleats?

Can I setup my road bike, mountain bike, and fat bike with the same set of MTB SPD cleats? Basically I have 3 bikes with VERY different cranksets and Q-factors that range from 148mm to 164mm to ...
6
votes
7answers
2k views

Why do I have to keep on changing my fit?

I realize there may not be a true "answer" to this, and some of what I have to say makes no sense, but since I'm not exactly the brightest tool in the refrigerator, it may just be that there is ...
0
votes
3answers
171 views

How much can we change our bike wheel diameters before needing another bike fit?

How much can we change our bike wheel diameters before needing another bike fit? If we change the size of our bike tires, it raises or lowers the front or rear of the bike. That means it can affect ...
4
votes
2answers
289 views

Mountain bike sizing for a short female

This is similar to this question on frame size, however that is addressing it from a road bike standpoint. My wife is 4' 9", and I am interested in getting her a mountain bike, as she has expressed ...
0
votes
0answers
104 views

How do you optimize the recruitment of our glutes when using a more upright bike?

How do you optimize the recruitment of our glutes when using a more upright bike? According to an answer for a previous question, rolling the hips forward slightly makes the glutes easier to recruit ...
0
votes
5answers
691 views

Can a hybrid bike's stem be slammed to make it nearly as fast and powerful as a road or cyclocross bike?

Can a hybrid bike's stem be slammed to make it nearly as fast and powerful as a road or cyclocross bike? More aggressive positions are thought to improve power transfer. That means a better workout ...
7
votes
2answers
2k views

What's the proper way to fit a hybrid/commuter bike?

What's the proper way to fit a hybrid/commuter bike? Most detailed bike fit articles seem to apply to road bikes but not so much for hybrid/commuter bikes which cycle commuters, recreational cyclists,...
8
votes
1answer
1k views

Which position adjustments maximize the use of the glutes in a road bike?

I usually don't feel the glutes firing when I'm seated unless I'm in a really long and hard climb or if I stand up and move back. Is there any common adjustment to maximize the glutes utilization? Or ...
2
votes
2answers
553 views

What type of bike should I get?

I am about 200lbs 5'6 woman, 47yrs. Attached a screenshot of my last bike ride. It was mostly flat road, 2 lane country/ city bike paths (included was a 30 min layover where I grabbed a Snickers ...
8
votes
10answers
69k views

Is it possible to make a larger bike fit a smaller person?

I bought a used road bike to commute into school each day (only about 4 miles roundtrip) and to go on casual rides for fun. I've only had it for about 3 weeks and prior to that have not had a bike ...
6
votes
2answers
757 views

Are bikes with aggressive positions required to achieve high fitness levels when training on a bike?

Are bikes with aggressive positions required to achieve high fitness levels when training on a bike? My bike fitter claimed that a more aggressive posture is better for transferring power than a more ...
2
votes
1answer
493 views

How do you find the right saddle for road biking?

I bought a Cube Attain GTRC disc, a great bike apart from the saddle, which is quite chunky and square. I would like to find a better one. Tips for saddle sizing for road biking? Long saddle ...
3
votes
3answers
3k views

How to be certain a Boardman ADV 8.8 would fit without prior road bike experience?

I'm looking to buy my first road bike - an adventure/gravel road bike. Question: How can I be certain it's okay or not? And should I be looking for a bike that's closer to my estimated frame ...
4
votes
3answers
1k views

Bike fitting experiences

I just recently went through a Specialized BG Pro-Fit (was about $200), and have to say that I'm super happy with the results and experience. The fitter was telling me about some others out there ...