Tamiya TT02 Rear Adjustable Upper Arm Alloy 1pr by GPM TT2057  [TT2057]

Rear adjustable upper arm overview

This aftermarket rear upper arm is made for the Tamiya TT02 platform and sold under GPM's TT2057 code. It is described as an alloy, adjustable link intended to replace the stock plastic rear upper arm assembly and provide a firmer mounting point for suspension geometry tuning. The part is supplied as a single pair to fit the standard TT-02 rear hub setup.

Functionally the arm changes how the rear wheel is located under load, giving modelers a discrete adjustment point for camber and roll-center behavior without altering other suspension members. Because the component is alloy, it is used where increased rigidity and repeatable mounting are preferred over stock plastic parts. Installation uses the existing TT-02 attachment points and existing hardware where compatible, though some setups may require reuse or upgrade of screws and spacers.

This alloy rear upper arm is a targeted hop-up for TT-02 drivers seeking firmer suspension mounting and a simple adjustment point for rear-end tuning; verify hardware fitment with your build before final assembly.