Tamiya TT02 Rear Adjustable Upper Arm TT2057 Alloy upgrade by GPM  [TT2057]

Overview of the rear upper arm

This aftermarket rear upper arm has been made for the Tamiya TT02 platform and carries model number TT2057. The part is an alloy, adjustable link intended to replace the stock plastic rear upper arm and give a firmer mounting point for tuning the rear suspension. It ships as a single pair to suit the standard TT-02 rear hub configuration.

Functionally the arm alters the rear wheel location when the car is loaded, providing tuners with a clear adjustment point for camber and roll-centre without changing other suspension components. The alloy part increases rigidity and produces a more repeatable mount compared with stock plastic. Installation uses the TT-02 mounting points and compatible hardware, although some setups may require different screws or spacers to achieve correct fit.

This alloy rear arm is aimed at tuners running TT-02 platforms who want a firmer suspension mounting and a simple, repeatable rear adjustment point; always verify hardware compatibility with your build before final fitting.