TAMIYA TT-02 Type-S Upper Arm Mount Set, Aluminum - JR-TT2S01-LB by Jazrider  [JR-TT2S01-LB]

Aluminum upper arm mount for TT-02 Type-S

This is an RC-scale aluminum upper arm mount set designed for use with the TAMIYA TT-02 Type-S chassis, supplied under model JR-TT2S01-LB. The component replaces the standard plastic upper arm mounting points to provide a firmer attachment for suspension arms, aiming to reduce local flex at the mounting interface and offer a more consistent suspension response during aggressive driving or tuning sessions.

Installation is straightforward on a TT-02 Type-S layout: remove the original upper arm mounts, fit the aluminum mounts to the existing chassis mounting locations, and reattach the upper arms and hardware. Pay attention to alignment and even tightening to avoid preloading bearings or twisting the suspension geometry. The part is an accessory for hobby-scale RC tuning and does not change the chassis design beyond replacing the mounting points.

In tuning terms this aluminum mount set shifts the trade-off toward increased local stiffness and repeatability at the arm pivots. That can help maintain camber and toe behaviour under load and make small steering inputs more immediate, but it may transmit more vibration into the chassis compared with softer plastic mounts. Use it when you want firmer suspension response or more consistent setup behavior across multiple runs.