Bafang speed sensor with magnet, accurately measuring wheel speed for reliable data input, enhancing performance and functionality in Bafang e-bike systems.

This is a replacement Speed Sensor kit for your BBS01/BBS02/BBSHD Bafang Mid-Drive kit.

• Mounts on chainstay
• Magnet must be installed 1-2mm away from Sensor (smooth face of the magnet facing sensor)
• Includes Speed Sensor with mount, two-part threaded magnet, and magnet mounting screw

This video will help if you have an error 21 associated with the speed sensor: https://www.youtube.com/watch?v=r8vUEZcgqVw