Tamiya WR02C Rear Knuckle Arm Aluminium Upgrade for Honda City Turbo - WRC2022 by GPM  [WRC2022]

CNC-style aluminium knuckle for WR02C fitment

This aluminium rear knuckle arm is an aftermarket upgrade crafted to replace the factory plastic part on the Tamiya Honda City Turbo WR02C. Supplied as a 1pr set, it increases durability and reduces flex at the spindle mounting compared with stock components.

Installation is straightforward: remove the original knuckle assembly, move over any bearings or bushings, and fit the aluminium arm into the same mounting points. Retain original screws where they are serviceable to preserve track and alignment.

Swapping to aluminium changes structural stiffness at the rear axle which alters steering feedback and the chassis' response to load. Builders seeking tighter rear turn-in should consider pairing this arm with suspension setup changes such as shock rate or arm geometry adjustments to get the desired balance.

A practical aftermarket swap for tuners wanting reduced rear flex and clearer steering cues on the WR02C platform; fits using the original mounting layout for a simple replacement.