Tamiya TB04 Front Rocker Arm - Aluminium TB4027 by GPM  [TB4027]

Front rocker assembly for TB04

This aluminium front rocker arm is supplied as 1pr and serves as a direct-fit aftermarket replacement for the Tamiya TB04 front suspension. It replaces the standard plastic rocker with a stiffer aluminium unit to reinforce the link between the upper suspension components and the shock tower.

Fitting is straightforward for modelers familiar with TB04 internals: remove the original rocker and transfer any pins or bearings as needed. The part is suspension-specific so no changes to servo, ESC, motor, or gearbox are needed for fitment.

On the setup bench the aluminium rocker reduces chassis compliance in the front linkage path, which improves camber stability and refines roll transfer; many drivers choose aluminium when chasing a more consistent front-end response for indoor tracks and on-road circuits.