HPI Baja Spur Gear Adaptor Alloy by GPM BJ115  [BJ115]

Spur gear adaptor for HPI Baja

This alloy spur gear adaptor is an RC-scale replacement part intended for use on HPI Baja platforms. It functions as the interface between the spur gear and the gearbox or motor mounting assembly, providing a matched mounting surface and alignment for the drive train.

Fit and installation focus on correct seating and axial alignment: confirm the adaptor seats flush on the spur gear hub, secure with the original fastening method, and verify mesh and backlash after fitting. The part is provided as a single pcs unit to replace worn or damaged adaptors without altering existing motor or spur gear specifications.

Use this adaptor when you need a direct, like-for-like replacement to restore correct spur gear mounting and maintain drivetrain geometry on HPI Baja RC buggies.