Thank you for viewing! This is a counter shaft made with motor pins for the MS chassis. In my many races, I was helped by this shaft and won many times! I made this because I want everyone to experience it! When delivering, please insert the colored side from the opposite side of the bearing. It is made to fit multiple center chassis, but there may be individual differences and scratches from manufacturing, so please refrain from purchasing if you are sensitive to these issues. #Mini4WD #MSFlex #MachDashMotor #SprintDashMotor #FinishedProduct #CounterShaft #HyperDashMotor