Anyone out in the stw wilderness know how much you change your head angle when fitting longer forks or winding talas up and down etc?

eg. 15mm=1 degree????

It’s more like 1 inch/25mm to 1 degree

17mm sagged from a calculation I did once.

I think it’s pretty transferable to all mtbs, though someone did call me on it, turned out to be yet another “you’re wrong because I say you are even though I offer no explanation” type.

Sounds like Al has worked this out whereas I’ve just quoted from ‘urban myth’ 😀

Unless someone has a better answer, I would go with Al

knock yourself out

I should add “give or take a mm or 2” in case the pedants arrive…

It’s 20mm per degree for normal range of fork lengths / head angles.

cheers folks 😀

al is wrong, totally and completely wrong, so wrong in fact, i cba to correct it.

Oh no, now jameso’s said that, I might have to calculate it again…

Nah ) 17mm, 20mm, it’s close enough for fork-length faffing. If I lay out a bike geometry and change the fork length alone, that’s what I get.

sagged or unsagged?

sagged or unsagged?

TJ has a point. 20mm of sagged fork height will give more of a change in head angle than 20mm of non-sagged fork height.