Forged AL6061/T6 crank arms.
Length: 165, 170, 172.5, 175mm.
ISIS Drive.
2-tone anodized black, laser graphics.
Weight: 477g (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.