It's not all about that, but it can be a limiting factor after you have lowered your saddle to maintain correct leg extension when using longer cranks.
Of course, there is no need for anybody to use any crank length other than 165mm unless they are particularly short legged, but manufacturers supply what punters demand and the punters (even up to ProTour level) still haven't read the science.
It's not all about that, but it can be a limiting factor after you have lowered your saddle to maintain correct leg extension when using longer cranks.
Of course, there is no need for anybody to use any crank length other than 165mm unless they are particularly short legged, but manufacturers supply what punters demand and the punters (even up to ProTour level) still haven't read the science.