TAMIYA TT01 / TT01E Rear Upper Arms, Aluminium - JR-TT105-LB by Jazrider  [JR-TT105-LB]

Rear upper suspension arm for TT01/TT01E

This RC-scale aluminium rear upper suspension arm is specifically made for TAMIYA TT01 and TT01E chassis. The light blue anodised finish replaces the stock plastic piece and provides a firmer attachment that supports consistent setup and improved chassis feedback.

Installation steps include removing the rear wheel hub, taking off the original upper arm, and fitting the aluminium arm with the vehicle's standard mounting hardware. Once fitted, check ball stud seating and ensure the suspension moves without any binding.

When tuning, the rear upper arm plays a role in rear geometry and how the chassis communicates load changes to the driver. A stiffer aluminium arm reduces unwanted flex under load and gives a steadier response during cornering, which is advantageous when trimming toe and camber.