Die cast alloy crank arms.
Length: 155, 160, 165, 170mm.
Bosch Axle Interface BNI.
Painted bead blasted black, printed graphics.
Weight: 505g (pair).
QFactor is the distance between the outsides of the crank arms. Clearance is the distance between the insides of the crank arms. Please make sure the clearance is wider than the width of your bike's chainstays.