ebike chainset ck-758 jis 31.5mm black

• Forged AL6061/T6 crank arms.
• Length: 155, 165mm.
• JIS Axle.
• 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.