Compatible with BBS01B, BBS02B and BBSHD Drive System. All devices and parts are produced by OEM of BAFANG, reliable and in good compatibility. All controllers in this product link are New Version (With Light Connector & Gear Shift Sensor Connector). Please check your own controller serial number on the motor before ordering.
Do not change the different voltage and power controllers on the motor. For example, you ordered a 36V 250W motor, but you want to change the controller to 36V 350W or 48V 250W, etc. New version with gear sensor and front light connector.