Originally Posted by
Duragrouch
BB height: In what way?
BB height is a trade off between pedal clearance and center of gravity height. The higher the CG, the slower you corner, because you have to move the CG a longer distance between cornering positions. And since cornering ist part of being fast, it is very important. 99.9% of RR bikes have a BB height between 26 and 28cm, because it's one main parameter of being fast. Roll rate gets slower the higher it is.