Team Associated ASC21625 16T Pinion Gear

The Team Associated Pinion Gear, 16 Tooth, is a .5 module pinion gear built with a 2.3mm shaft bore for use on the MT12 Monster Truck platform, meshing with the spur gear to transfer motor power into the drivetrain. Precision-machined for accurate tooth engagement, this gear helps maintain smooth, quiet power transfer and reduces abnormal wear on both the pinion and the mating spur gear compared to a chipped or rounded original gear. As a direct OEM replacement, it matches the factory shaft diameter and mounting setup, so it installs using the stock set screw without requiring any other drivetrain modifications. Swapping in a fresh 16-tooth pinion serves as routine maintenance when the original gear becomes stripped or worn, and as a gearing option for fine-tuning acceleration versus top speed. This is a maintenance and tuning part rather than a wholesale performance upgrade, since it uses the same module and mounting standard as the stock pinion. Pinion gears are a wear item subject to friction and heat, so keeping a selection of tooth counts on hand, including this 16T option, gives MT12 owners an easy way to adjust gearing or replace a worn gear quickly.