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

Upper arm mounting upgrade for TT-02 Type-S chassis

This aluminium upper arm mount set is produced for the TAMIYA TT-02 Type-S chassis and carries the model reference JR-TT2S01-LB. It replaces the original plastic upper arm mounts to provide a firmer connection for the suspension arms, reducing local flex at the mounting points and helping the suspension respond more consistently during aggressive driving or when refining setups.

The installation process on a TT-02 Type-S typically involves removing the stock mounts, fitting the aluminium parts into the existing chassis locations, and refitting the upper arms and associated hardware. Ensure correct alignment and even fastener torque to avoid preloading bearings or introducing unwanted suspension twist. This item is an aftermarket tuning accessory and does not change the chassis layout apart from the mounts themselves.

In practical tuning terms the aluminium mount set shifts the balance toward increased local stiffness and repeatability at the pivot points. That can help preserve camber and toe under load and make steering inputs feel more immediate, while potentially transferring more vibration into the chassis compared to the stock plastic items. Fit these mounts when firmer, more repeatable suspension behavior is required.