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

Durable alloy rear arm for TT01 setups

This alloy rear upper arm is an aftermarket replacement supplied by GPM for the TAMIYA TT01 chassis and comes with shims, collars, E-clips and pins. It is intended as a direct replacement for the original plastic arm to give a firmer rear mounting for 1/10 touring car use.

Fitting notes: the kit includes standard pin retention hardware so the arm installs using the TT01 rear hub layout. Check pin alignment, clearance around the hub and the movement of suspension links, and use the shims provided to fine-tune camber and lateral spacing.

Setup advantages: the alloy construction reduces component flex and helps the rear geometry remain consistent under load, improving predictability during cornering. Collars and shims provide small adjustments for pivot and track alignment to manage handling and tyre wear.