Associated RC18T 55T Aluminium Spur AR055T by GPM  [AR055T]

55T aluminium main gear for RC18T drivetrains

This 55-tooth alloy main gear is produced for Associated RC18T applications and is supplied as one piece. It serves as an aftermarket spur designed to directly replace the RC18T 55T stock gear.

Made from aluminium alloy to preserve the original mounting footprint, the gear typically fits without altering the gearbox. On installation verify pinion-to-spur mesh and check clearances with bearings and the motor mount, fasten with the existing hex screws, and confirm free running before use.

Swapping the spur offers a practical way to change the final drive ratio, allowing you to bias the setup toward quicker acceleration or a higher top speed depending on track demands. Regularly inspect mesh and mounting after any gear change to prevent premature wear.