This is a BBSHD 100mm mid - axle assembly. It serves as a spare part exclusively for the 100mm Bafang BBSHD mid - drive conversion kit. Note that it's not compatible with the 120mm BBSHD, 68mm BBSHD, BBS02B, or BBS01B motors.

Using this Bafang BBSHD 100mm crank axle is easy. First, make sure you have the right 100mm Bafang BBSHD mid - drive conversion kit. Then, carefully replace the old axle with this new one. When installing, be gentle to avoid any damage. As for maintenance, keep it clean and dry. Check for any signs of wear regularly. If you notice any issues, replace it in time. Remember, this axle won't work with the 120mm BBSHD, 68mm BBSHD, BBS02B, or BBS01B motors, so always use it with the correct kit.