Bafang central motor torque sensor shaft M600 M500 M420 M620 G332 G521 G520

This torque shaft is suitable for M500 M600 M420 and M620 mid-mounted torque motor, M620 and M600 center shaft are not same, they are two different  models, please pay attention to whether the connector of the sensor is compatible with your motor when buying, the length of the wire is slightly different. Replacing the new torque shaft will use the BESST tool, because the torque shaft needs to be corrected with the motor before it can work normally, and the replacement torque shaft is suitable for professional maintenance.