TAMIYA TT02/TT02B Small Steel Bevel Gear Set TT2100/G4 by GPM  [TT2100/G4]

Replacement steel small bevel gears for TT02 drivetrain

This kit supplies four steel small bevel gears as direct replacement hop-up parts for TAMIYA TT02 and TT02B chassis. The pieces are sized for the differential and internal gear trains of TT02-series models, focusing on longer wear life and stable gear mesh during routine running.

In operation these small bevels sit inside the differential and gearbox assemblies and transfer drive torque between mating bevel gears. Steel construction reduces wear versus softer alloys, making them a sensible swap for models that see frequent use or heavier power setups.

Fitment tips: remove the diff carrier and check mating bevels and bearings for wear, fit the small bevels in the correct orientation, and set the gear mesh before final assembly. Use the diff fluid or grease recommended for your TT02 differential and verify smooth rotation through the drivetrain; do not force parts or file tooth profiles.

The TT2100/G4 steel small bevels make a straightforward replacement for maintaining or modestly upgrading the TT02 drivetrain where steel gears are preferred for longevity; confirm fit and mesh on your diff build before extended running.