Features1Suitable Model: Ideal replacement for the original old or damaged part, suitable for Bafang BBS01 BBS02 BBS03 BBSHD built in drive motor. 2Aluminum Material: The electric bike cranks are made of sturdy and durable aluminum alloy material to ensure maximum strength and durability, so it can be used for a long time. 3Mounting Method: The left pedal is reverse threaded so you can tighten it backwards (counterclockwise direction), not need too much time and energy cost. 4Easy to Use: The driving side is normal and mounted in clockwise direction, clear about this can avoid inconvenience, providing a satisfying using experience. 5Accurate Size: Manufactured with accurate shape and size, has a close fitting, simple for installation and removal, will not take much effort or time.SpecificationItem Type: Electric Bike Crank ArmMaterial: Aluminum AlloyColor: As Picture ShownApplication: for Bafang Built In MotorGross Weight: Approx.457g/16.1ozPackage List2 x ElectricBikeCrankArm2 x Screw