Originally Posted by
Maelochs
If you put a different fork on a bike it no longer has the same angles .... Obviously. However, that is Not what is being discussed.
Actually, I think it's only possible that different forks will yield different angles (and hence a changed Reach/Stack). Ie. you could take the same bike, mount a fork with 40mm of rake, and another with 50mm of rake -- if they are the same length, the angles will be the same and neither reach or stack are affected.