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Product Description

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