Thank you for viewing! This is a counter shaft made with motor pins for the MS chassis. In many races, this shaft has helped me, and I've won many times thanks to it! I made this because I want everyone to experience it! When you receive it, 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 the manufacturing process, so please refrain from purchasing if you are sensitive to these details. #Mini4WD #MSFlex #MachDashMotor #SprintDashMotor #FinishedProduct #CounterShaft #HyperDashMotor