XRAY RX8 Arrowmax AM-RX8-348521 21T Pinion Gear Race Spec  [AM-RX8-348521]

Refine XRAY RX8 drivability with Arrowmax 21T pinion

The Arrowmax AM-RX8-348521 21-tooth pinion is engineered for XRAY RX8 cars and machined from 7075-T6 aluminium to keep weight down while maintaining toughness. The hard-coated finish offers added protection against wear during competitive running.

Machining quality for consistent gear engagement

Precision-cut teeth reduce backlash and promote even contact across the gear face, which helps with power transfer and reduces drivetrain losses. Available in multiple tooth counts from 16T to 21T, it lets you fine tune gearing to suit circuit type and grip.

The advantages of 7075-T6 aluminium construction

This alloy delivers a strong yet lightweight pinion that resists bending under load and lowers rotating mass for sharper throttle response and improved handling feel.