TAMIYA TT01 Rear Upper Arm Alloy by GPM TT057  [TT057]

Alloy rear upper arm for TT01

This alloy rear upper arm is an aftermarket replacement part produced by GPM for the TAMIYA TT01 chassis, supplied with shims, collars, E-clips and pins. It is intended as a direct-fit RC-scale component to replace the stock plastic arm, offering a rigid mounting point for the rear suspension and wheel hub on 1/10 touring car setups.

Installation notes: the arm uses standard pin retention hardware included in the kit, so installation follows the TT01 rear hub and suspension geometry without additional parts. Check pin alignment and clearance around the wheel hub and suspension links during fitting, and use the supplied shims to fine-tune camber and track where required.

Tuning role: as an alloy arm it reduces flex compared with typical plastic arms, which helps maintain consistent rear suspension geometry under load and makes camber and toe adjustments more stable during cornering and acceleration. Use the collars and shims to adjust lateral spacing and pivot alignment for steering balance and tyre wear management.