This alloy main gear is intended for Associated RC18T platforms and replaces the 54-tooth spur on 1/18 scale electric 18T chassis. It is supplied as a single unit for direct swap-in maintenance or repair.
Installation guidance: verify the tooth count and pinion mesh prior to final assembly, set gear mesh to the chassis manufacturer's recommended clearance, and recheck drivetrain spin and bearing alignment after fitting. Treat this item as a spur gear replacement and setup option, not a claimed performance upgrade.
Suited to pit-side changes and tuning where exact tooth count and an alloy material provide steady engagement during practice and race events.
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