This aluminium rear upper arm is produced as an aftermarket replacement specifically for the Tamiya TL-01, GF-01 and WR-02 chassis. The light blue anodised finish distinguishes the part visually while the metal construction replaces the stock plastic arm to provide a firmer rear mounting point for setup precision.
The arm is compatible with the TL-01, GF-01 and WR-02 rear mounting layout and uses the original mounting points so it integrates with factory linkages and hardware. Because it is a metal component, expect reduced flex at the upper mount which affects roll centre location and steering feel on model vehicles.
Fitment recommendations: verify alignment with your existing ball studs or mounting pins prior to final tightening, retain original hardware where suitable, and check for interference with surrounding items such as shock towers or body mounts. The light blue anodised treatment is cosmetic and provides surface protection only.