TAMIYA TT02/TT02B Spur Gear 42 Pitch Delrin 69T - DTT2B069T by GPM  [DTT2B069T]

42-Pitch Delrin 69T Spur Gear Details

This Delrin spur gear is an aftermarket replacement for TAMIYA TT02 and TT02B chassis. The part is identified by DTT2B069T and provides a 42 pitch tooth profile with 69 teeth, suitable for pairing with a 42 pitch motor pinion.

Delrin is selected for low friction and dimensional stability in small-scale drivetrains, helping maintain consistent mesh under normal loads. As an internal gearbox component, it should be checked regularly for wear and correct seating.

Installation notes: confirm gear mesh with your existing pinion before final assembly, verify axial alignment, and ensure the 69T diameter clears nearby chassis components. Use appropriate tools to avoid deforming the Delrin during fitment.

Tuning role: swapping the spur gear changes the final drive ratio on the TT02 platform; different tooth counts will alter acceleration and top speed, so plan gear choices around track layout and battery setup.