Losi LOS3744 Pinion Gear 21T Mod 1.5

This 21-tooth pinion gear is designed for the Losi 5IVE-TE platform and is machined from strong alloy steel to withstand the high torque loads produced by the vehicle's electric power system. It has a Mod 1.5 tooth pitch and is bored for an 8mm "D" profile motor shaft, giving it a secure, non-slip fit under hard acceleration and sustained high-speed runs. The precisely cut teeth maintain clean, consistent mesh with the spur gear, cutting down on drivetrain noise and the premature wear that comes with a worn or mismatched pinion. As a direct factory-spec replacement, it installs without requiring any changes to the motor mount or gearbox. Stepping up to a 21-tooth pinion raises the overall gear ratio for higher top speed, making it a good option for owners running the 5IVE-TE on open terrain where straight-line speed is the priority. The alloy steel build resists tooth stripping even under the significant torque generated by large-scale electric drivetrains. Keeping this pinion available alongside other tooth counts gives owners the flexibility to dial in gearing for different terrain, battery setups, and driving styles.