• High - quality 120mm mid - axle assembly for BBSHD motors
• Exclusive spare part for 120mm Bafang BBSHD mid - drive conversion kits
• Not suitable for 100mm BBSHD, 68mm BBSHD, BBS02B, or BBS01B motors

Using this Bafang BBSHD 120mm crank axle is easy. First, make sure you have the right 120mm Bafang BBSHD mid - drive conversion kit. Remove the old axle carefully and replace it with this new one. When handling the axle, be gentle to avoid any damage. As for maintenance, keep it clean and dry. You can use a soft cloth to wipe it regularly. Also, check for any signs of wear or looseness from time to time. Remember, this axle won't work with 100mm BBSHD, 68mm BBSHD, BBS02B, or BBS01B motors, so don't try to use it with those models.