TRAXXAS TRX4 Pinion Gear 10T Steel TRX4010T by GPM  [TRX4010T]

10T steel pinion for TRX4 trail use

This 2pcs steel 10T pinion set is aimed at TRAXXAS TRX4 TRAIL CRAWLER applications, model TRX4010T. Fabricated from hardened steel #45, the pinions suit motors with a 3.175mm centre bore and 0.8mm tooth pitch, engineered to maintain reliable tooth engagement in low-speed, high-torque crawling scenarios.

Fitment guidance: the pinions are intended to mesh with 32 pitch spur gears at a 10-tooth count, so verify your spur and motor shaft measurements prior to installation. The set includes a 3x3 screw shaft for securing the pinion to many TRX4 motor shafts, enabling a straightforward replacement in common setups.

Tuning guidance: changing the pinion tooth count alters the final drive ratio and thus the balance between torque and top-end speed on trail sections. For more torque on technical lines choose a smaller pinion, and always set correct mesh and check motor clearance to protect the gears.

Installation tips: clean and inspect the motor shaft for burrs, confirm the 3.175mm bore fit, and tighten the fixing screw to a controlled torque to avoid damaging the shaft or gear teeth. Reinspect mesh and the screw after initial running sessions.