For Bafang Motor Torque CenterAxle Sensor for Models M420 and For M500
Accessories list: a torque centeraxle sensor. Suitable for Bafang for M420 / for M500 / for M600 series motors. Size: for Bafang for M420 / for G332( CAN ), or for M500 / for G520, or for M600 / for G521.