TAMIYA Hotshot Rear Upper Arms Aluminum Hop-Up JR-THS05-LB by Jazrider  [JR-THS05-LB]

Rear Upper Suspension Arms — Aluminum Upgrade

The JAZRIDER JR-THS05-LB is an aluminum rear upper suspension arm kit for TAMIYA Hotshot and Super Hotshot chassis. Replacing the factory plastic arms gives a firmer attachment for the rear suspension, which helps create repeatable setup changes.

These parts are designed only for the named Hotshot models. The blue anodized finish is applied to the aluminium components and these are sold as hobby upgrades, not as parts for real vehicles.

Installation guidance: the arms are designed to fit in place of the original rear upper arms on compatible variants with no chassis modification required. Verify hinge pin condition and retainer fit during installation and check movement through the full suspension travel. Because the upgrade increases stiffness, you should reassess shock and alignment settings after fitting.

Tuning impact: upgrading to metal rear upper arms reduces flex where the suspension mounts to the chassis, aiding camber retention and making roll behaviour more predictable, which is useful when refining setups for different surfaces.

A straightforward aluminium hop-up that reinforces rear suspension pick-up points on Hotshot chassis and integrates with common tuning approaches.