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

Alloy main gear adaptor for Associated RC18T fitment

This adaptor is an alloy main gear adaptor made for the Associated RC 18T platform, supplied as a 1 pcs set with retaining screws and identified as model AR115. It serves as a direct replacement or an aftermarket option when the original adaptor shows wear or when a firmer seating between the spur gear and gearbox is required.

Installation notes: slide the adaptor onto the main gear shaft, align it with the spur gear teeth, secure using the supplied screws and check axial play before final tightening. Use the correct hex driver and apply moderate torque to avoid thread damage; recheck mesh and backlash after installation.

Tuning role: this adaptor helps preserve concentric alignment of the spur gear during maintenance or rebuilds, supporting consistent mesh and predictable drivetrain behavior on the track or at the practice area.