This GPM TAR054TA spare is an RC-scale 54-tooth main gear produced for Associated RC 18T platforms, supplied with an alloy adaptor to match the transmission input. The assembly uses a titanium main gear element paired to an alloy adaptor to balance wear resistance and accurate mesh alignment.
Compatibility is limited to the Associated RC18T family as stated in the product title, check your chassis parts list before purchase. Installation requires access to the gearbox area, standard hand tools, and basic familiarity with spur gear mesh and backlash settings to avoid accelerated wear on the motor pinion and gearbox components.
On-track tuning role: this item is intended for precise spur-gear changes to alter final drive ratio and refine corner exit and top speed behavior. Use incremental tooth changes and verify mesh and runout after fitting, re-check motor pinion alignment and ensure the gearbox rotates freely before running.
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