Mini-Z AWD Tuning Pinion Gear Aluminium AWD-33 by 3Racing  [AWD-33]

Aluminium upgrade pinion for Mini-Z AWD

This aluminium motor pinion is intended for Mini-Z AWD models as an upgrade over soft metal pinions. The design reduces spinning mass and provides a firm contact surface to improve consistency between laps on small-scale race layouts.

Fitment and role: it slides onto the motor shaft and works with the vehicle's existing spur and gearbox components. Compared with brass or steel pinions, the aluminium option changes mass distribution and stiffness, which will influence throttle response and wear patterns. Use this part when you need a lightweight gearing choice for refining acceleration and thermal traits under race conditions.

Installation tips: make sure the motor shaft and set screw area are free of debris, confirm there is no excessive axial or radial play, and test mesh with slow rotations before full-throttle runs. If your Mini-Z setup uses spacers or a specific shim order, match the original alignment to prevent undue tooth loading. Replace damaged set screws and smooth any burrs on the mating spur.

Maintenance and tuning: aluminium pinions benefit from routine inspection for tooth deformation and from light, gear-safe lubrication on the spur gear rather than heavy greases that trap grit. When altering tooth counts for tuning, change by single teeth and run controlled tests to judge acceleration and top speed shifts.