2 mm Spacer - necessary, if motor housing touches chainstay
The spacer discs move the motor further outwards at the drive side (right side). This is necessary if the dropout of the frame is too steep and the motor housing touches the bike frame. Without these spacers, the motor housing will be distorted.
Perfectly matched to the axle diameter of the Bafang BBS series, chamfered for a two-dimensional fit on the engine housing. External diameter approx. 42 mm
For Bafang BBSHD, BBS01 and BBS02 motors.