This is a primary thread to discuss Bike Fitting methods and issues. I will edit this lead post with useful links for starters. Feel free to post your questions and issues, and we will do our best to address them. A bit about me: My bike fit interest started back in 1997 with the Fit Kit Syste…

No fixed rules in bike fitting :slight_smile: Take the spacers out & see how it feels then go from there.

I’m not sure of the year of your bike so I just grabbed a random geo chart for an RS 785. Head tube angle is 71.3 from this chart - so if you go down 20mm the bars will end up 6.7mm further forward.

Thanks! In my head, if there was a formula, I’d feel confident that if I moved the seat forward XX mm then all would be fine. If I experiment, I question EVERYTHING.

You can try just moving the seat forward by that amount, but keep in mind the bars have also moved down by 20mm, and your arms do some sort of diagonal reach. Also, moving the seat forward changes the position of your hip/legs to the bottom bracket, and your centre of gravity. All of this may or ma…

Took some clips of a bike fit what do you guys think? [Postural Study H.264]

Hi folks, I’m planning to buy a new climbing-oriented road bike for when I’m in Europe (normally in the US, except Christmas break and summer) and want to make sure I can achieve a fit close to what my fitter recommended. My current bike is a Canyon Endurace S with a 110 mm stem, which I like in te…

Has anyone been to an idmatch studio? What was your experience? Would you recommend it? There are very few here in the US, but I have the opportunity to visit one in January when I am seeing my folks in the UK. I like the idea of being fitted using a dynamic jig that doesn’t require your existing …

Many bikefitters will disregard your old bike, specifically ask them to. ask for a ground up fit. You don’t need the fit-by-numbers/angles of a computer to do it. Most of the nuances of fit aren’t from your side on profile, its the twists and shifts between left and right.

Having a ground up fit still requires that you buy the new bike before getting the fit. What I am interested in is knowing the right size/fit/geo of bike(s) that I should be looking at, and being about to purchase knowing it will be a good fit. My understanding from seeing the idmatch system is tha…

[image] mikethg: idmatch studio There are other similar options. Guru bike is one I know of that have a lot of implementations in the US. https://www.gurucycling.com/dealer-locator/

The Bike Fitting Mega-Thread

Equipment

firemunki March 16, 2026, 8:34am 2033

I think all my googling has fed into the YouTube algorithm!

A surprisingly well timed video!

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The Bike Fitting Mega-Thread

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