This Robinson Racing Products Absolute pinion gear features 18 teeth cut to the 48 pitch standard, making it a direct-fit replacement or upgrade option for a wide range of 48P electric RC drivetrains. The hardened metal construction is designed to resist wear under demanding conditions. Includes a set screw for secure motor shaft mounting. Features: 48 pitch, 18 tooth pinion gear Hardened metal construction for durability Includes set screw for motor shaft mounting Compatible with standard 48P electric RC drivetrains 7/7/26 cs