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…

As I said, I’m completely failing a geometry, but how can these two statments both be true: If I increase my sadddle heigth by 1cm, saddle goes back 3mm. However If I change my aft by 3mm, saddle goes up by 1mm. I would have thought that only one of these statements and the according inverse c…

This is about “who’s driving the bus” sort of thing. If you Raise or Lower the Saddle, the Fore-Aft distance change is roughly 1/3 that height change. Raise Saddle 10mm = Fore-Aft changes 3mm If you move the Saddle Fore-Aft, the Height distance change is again, roughly 1/3 that height change…

Are there resources on fitting cleats. I have a sensitive knee and I got new shoes and can’t quite get the clear in a comfortable position. I could find tidbits on some adjustments based on what I’m feeling but not enough to get them set properly.

[image] mcneese.chad: 700mm saddle height at 73*, then shift 3mm directly rearward horizontal. It effectively lengthens the saddle height ( all else being equal ) about 1mm ( not 10mm / 1cm like you said) [image] Here is a more exaggerated example to illustrate the point: [image] Height i…

this is helpful. I think that you really need two diagrams to illustrate the two cases raised by @pnzr . for case 1, the effective angle of the seat tube does not change. For case 2, the effective angle of the seat does change (which is what @WindWarrior has shown). this may be where (some of) th…

I don’t have a single resource, but here are some random ones referenced in some of the cleat topics here, in no particular order: Perfect Cleat Position - #3 by mcneese.chad New cycling shoes. Re: cleat position - #6 by Juarez Guides on cleat angle and placement? - #6 by mcneese.chad

[image] jamiek: you really need two diagrams to illustrate the two cases I didn’t finish the 2nd diagram, because the seat moves along the seat tube and length increases by the amount you raised it (assuming measurement marks are on seat post): [image]

@pnzr I think to help us explain the relationship you still need to answer the question about why you increased your saddle height? The ratios that we’ve been discussing are for maintaining the same leg extension when making adjustments. When fitting we tend to look at saddle height first to find …

I had some knee issues, but I’m not sure it’s saddle heigth related. Might have been too wide of a Q-factor, but have to see how the long weekend ride goes the day after tomorrow.

OK, what are the knee issues that you’re experiencing? Pain behind the kneecap is associated with height being too low. Lateral and Medial pain can be associated with the lateral cleat position i.e. Q factor. Have you previously had a bike fit (if so, how long ago) and have any changes occurred sin…

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mcneese.chad April 25, 2022, 8:07pm 1070

I don’t have a single resource, but here are some random ones referenced in some of the cleat topics here, in no particular order:

Perfect Cleat Position - #3 by mcneese.chad
New cycling shoes. Re: cleat position - #6 by Juarez
Guides on cleat angle and placement? - #6 by mcneese.chad

Topic		Replies	Views
2 bike fits and now I'm really confused Equipment	60	1999	August 2, 2026
Bike Fit - Setback for race Equipment	14	5002	December 15, 2022
Bike fit question- weight balance on bike Equipment	62	5432	April 13, 2021
Lower back soreness Equipment bike-setup	27	3074	March 4, 2021
The rabbit hole that is finding a comfortable saddle Equipment	52	4754	February 6, 2023

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