This Robinson Racing Products pinion gear features 40 teeth cut to 48 pitch, making it a direct-fit option for 1/10 scale RC vehicles running 48-pitch drivetrain components. The gear is machined from metal and finished with a hard nickel plating for added surface durability. A set screw is included for securing the pinion to the motor shaft. Features: 48 pitch, 40 tooth configuration Hard nickel plated finish Includes set screw Compatible with 48-pitch gear systems 7/7/26 cs