Originally Posted by
Jack Tone
I'm not claiming it would make a difference (it might on one of my bikes with a 75 degree head angle). Just saying that it's not "totally irrelevant".
Yeah well I'm saying it IS totally irrelevant in this context i.e. the difference in steering geometry between a 23C and 25C tyre is totally insignificant. Fitting a smaller wheel e.g. going from 700C to 650B is what would make a real difference to the geometry and that's where the other poster (t2P) was getting confused.