ITEM NAME:1x Crank Arm Bottom Bracke 1 Pair Bike Axle Bolt Screw Capless Bicycle Key JR.With plastic seal, no separate crank cap needed. Bicycle universal, with good quality. 1pcsX Crank Bolts. Suitable for square crankset & BB, specification M8 15. Material: Steel. Length: 2.4cm.
