Racing Performer M3 / M4 / D1 Rotor shim / spacer set
* This product has been changed to a stainless steel spacer on the back plate side.
RP-109 Racing Performer M4 / M3 Motor Spacer Set
https://teamyokomo.com/parts/RP-109/
Racing Performer Series A set of motor maintenance shims / spacers. Compatible with racing performer M3 / M4 motors and D1 series motors.