Single-piece Delrin spur supplied as a direct-fit replacement for the HPI Savage 21 platform. The component is specified at 53 teeth and intended solely for scale RC drivetrain service and repair.
Delrin (acetal) provides stable wear characteristics and low friction under meshing loads; confirm correct centre-mesh and pinion engagement during installation. Supplied as 1 pcs for part replacement or maintenance.
Maintaining correct mesh and minimal backlash reduces radial and axial loads on the motor pinion and bearings, improving drivetrain longevity. Inspect wave washers, bearing endplay and retention hardware during scheduled servicing to ensure reliable operation.