This aftermarket steel ring gear is a direct-fit option produced for Tamiya TT02 and TT02B platforms, supplied as 1 pcs for replacement or upgrade of the model-scale drivetrain. The steel construction is intended to resist wear compared with standard plastic ring gears while keeping the original mounting interface unchanged.
Fitment focuses on maintaining the stock gear mesh and centreline, so swapping the part typically requires only basic disassembly of the gearbox and verification of pinion-to-spur contact. Use standard setup practices: check pinion engagement, confirm free rotation, and re-check after a short break-in run to ensure steady mesh.
On tuning: a steel ring gear can help when running higher-power motors or altered gear ratios where plastic wear is a concern, but remember it changes the drivetrain interaction and may transfer more load to the pinion and bearings, so verify compatibility with your existing motor and bearings before extended use.
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