TAMIYA TT02/TT02B Aftermarket 71T Delrin Spur 42 Pitch DTT2B071T by GPM  [DTT2B071T]

Low-friction Delrin spur for TT02 series

This 71-tooth, 42-pitch Delrin spur gear is an aftermarket unit from GPM made for TAMIYA TT02 chassis. It is intended as a drop-in alternative to the factory spur when operators want quieter running and a smoother mesh feel in TT02 or TT02B gearboxes.

Material and role: Delrin is a widely used engineering plastic that balances durability with low sliding friction, making it suitable for RC spurs. In a TT02 drivetrain the 71T spur relays rotation from the pinion into the gearbox and influences final drive and tuning range.

Installation notes: confirm 42-pitch compatibility with your motor pinion, set backlash using shims or spacing methods, and check axial alignment to avoid binding. After installation run a short low-load session and recheck mesh as the plastic can seat slightly. Item sold as 1pc for single-gear replacement.

Tuning considerations: Delrin often lessens gear noise and gives a gentler engagement than some harder materials, which assists in fine-tuning gear ratios and setup. Use minimal grease and match with compatible pinions and bearings for best results.