Associated RC 18T Alloy Main Gear Adaptor by GPM AR115  [AR115]

Alloy main gear adaptor for RC18T

This is an RC-scale alloy main gear adaptor produced for the Associated RC 18T platform, supplied as a 1 pcs set with screws and designated AR115 by GPM. The component provides a direct replacement or an aftermarket option when the original adaptor shows wear or when a firmer seating between spur gear and gearbox is required.

Installation notes: fit the adaptor onto the main gear shaft ensuring alignment with the spur gear teeth, secure using the supplied screws, and verify axial play before final tightening. Use appropriate hex driver sizes and moderate torque to avoid stripping threads; check mesh and backlash after fitment.

Tuning role: this adaptor is used during gear train maintenance or rebuilds to maintain concentric alignment of the spur gear, which helps preserve consistent mesh and predictable drivetrain behavior during track runs or practice sessions.