Bottom Bracket#Torque Sensor// Motor Torque//CenterAxle Sensor For M500// New
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.