Crank Length

Choosing the right BMX crank for you.

Just like Riders, cranks come in all different shapes and sizes, the average size of BMX crank is 170mm -175mm, with most complete bikes coming with this size as standard. Shorter cranks 160mm-165mm offer a shorter rotational distance and therefore enable the rider to spin faster, (similar to spinning around on an office chair and pulling your arms in). Shorter cranks also make it easier to hop higher since your feet are closer together on the bike. (try jumping with your feet spread wide apart on the ground)