Originally Posted by
RChung
Frame stack and reach depends on the fork, so you need those dimensions. Frame stack and reach doesn't depend on seat tube, top tube, chainstay, or wheelbase lengths.
I didn't think there was a dependency on those dimensions, just that they might have value in calculating stack or reach.
Aren't most all bikes built with assumption that same wheel/tire dimension will be used in the front and rear and that the front and rear dropouts will therefore be the same height above the ground? With BB Drop, combined with HT angles, ST angles, HT length, fork rake, wheelbase,.. can't a fork 'length' be calculated?