4iiii precision power meter shimano dura ace 9000 blacksilver aluminium 1725mm
The 4iiii precision power meter for shimano dura ace 9000 cranks is a pre installed power meter on a shimano dura ace left hand crank arm this allows you to simply replace your left hand crank arm and youre ready to ride available in blacksilver only with a choice of 170mm 1725mm or 175mm crank arm lengths