Tamiya TT02/TT02B Aftermarket Steel Ring Gear - TT2100/G1 by GPM  [TT2100/G1]

Hardened replacement for TT02 series

This aftermarket steel ring gear fits Tamiya TT02 and TT02B models as a direct replacement, supplied as 1 pcs for gearbox service or upgrade. The steel construction aims to outlast standard plastic ring gears while preserving the original mounting and alignment.

Installation preserves the original mesh and centreline, so swapping the gear typically needs only basic gearbox teardown and a mesh check between pinion and spur. Standard setup practice applies: set engagement, confirm free spin, and re-check after a short break-in.

Tuning considerations: steel rings help when using higher-powered motors or custom gear ratios where plastic wear is a concern, but they can shift load to the pinion and bearings. Inspect your pinion and bearings and confirm compatibility before prolonged high-load running.