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

Direct replacement spur adaptor for HPI Baja

This machined alloy spur gear adaptor is an RC replacement part intended for HPI Baja models. It provides the interface between the spur gear and the gearbox or motor mount, ensuring a matched mounting surface and proper alignment across the drive train.

Installation focuses on correct seating and axial alignment: ensure the adaptor seats flush on the spur hub, secure it using the original fastening hardware, and verify gear mesh and backlash after installation. Supplied as a single pcs item, it replaces worn or damaged adaptors without modifying motor or spur gear specifications.

Choose this adaptor to return your HPI Baja to correct spur mounting and to maintain drivetrain geometry.