Tamiya WR02C Rear Lower Arm Aluminium Upgrade - WRC2056 by GPM  [WRC2056]

Precision aluminium rear lower arm for WR02C tuning

The WRC2056 is a CNC-ready aluminium rear lower arm designed as an aftermarket replacement for the Tamiya WR02C touring platform, supplied as a 1pr set to substitute the factory plastic arms on the Honda City Turbo WR02C body. It is intended to increase pivot stiffness while maintaining nominal WR02C geometry for predictable setup changes.

Installation is planned as a direct-fit swap at the original rear pivot points; confirm knuckle clearance and fastener engagement prior to final torque. Use appropriate thread-lock on metal fasteners and torque small hex screws to manufacturer recommendations to avoid loosening under dynamic loads. Check spur gear clearance and full suspension travel during initial testing, and recheck hardware after break-in runs.

From a tuning perspective, the aluminium lower arm alters local compliance and can stabilise rear behaviour under cornering load. Use matched shock valving, springs and sway bar settings to capitalise on the reduced flex, and routinely inspect pivot holes and ball cups for wear to maintain consistent handling.

Engineered for hobbyists seeking stiffer rear mounting points on WR02C Honda City Turbo builds, the WRC2056 is a direct-fit aluminium rear lower arm that supports consistent tuning and improved pivot stability.