This red anodized aluminum axle is specified for the Tamiya TT-02 chassis and offers a metal replacement to stock plastic wheel-mount parts, aimed at improving repeatable wheel positioning on TT-02 models.
Install by removing the wheel and hub assembly, fitting the axle into the original mounting position, and confirming wheel runout and play before final tightening. Keep bearings and retainers clean to prevent side load during assembly.
During tuning and maintenance, the axle gives a more stable reference for wheel location, easing repeated disassembly for setup changes at the track or in the workshop.