How long should your MTB cranks be?
Optimal crank length is proportional to leg length, which is generally proportional to height. Exceptions abound, but this logic — smaller people need smaller bike parts — is sound. The height difference between 5’0″ and 6’8″ (a full size run) is 33%. The length difference between 165 and 175mm cranks (the broadest common range on […]