Compatibility: This crank arm set compatible with motor BAFANG BBS01 BBS02 BBS01B BBS02B BBS-HD Mid Drive motor and M200 M300 M400 motor. Make sure that the interface of your original crank arm has a diamond hole.
Reliable quality: The 8FUN crank arm set is made of high-quality aluminum alloy material. The product is sturdy and durable, high hardness, not easy to deform.
Model number: There is a left crank L and a right crank R in the package, the square row of crank holes are 12.2mm apart, and the round holes are BC-9/16''-20T.
Application: As long as your bike is equipped with a Bafang mid-drive motor, this crankset is fully compatible.
Note: Please check the interface of your right crank arm is square or diamond. Keep both left and right arms have the same hole;Some GYM bikes may not be available, please confirm the length and connection port