This Schumacher Racing Products factory replacement pinion gear features a long boss design machined from hard alloy metal, sized at 48 pitch with 34 teeth. The extended hub provides secure shaft engagement and is compatible with Schumacher 1:12 platform drivetrains. A set screw on the boss locks the pinion firmly to the motor shaft. Features: 48 pitch, 34 tooth count Long boss design for secure shaft engagement Hard alloy metal construction Set screw retention 7/7/26 cs