TAMIYA Hotshot, Hotshot II/2, Boomerang 4WD Front Lower Suspension Arms JR-THS06-GU - Aluminium upgrade by Jazrider  [JR-THS06-GU]

Alloy front lower arm details

The JR-THS06-GU aluminium front lower suspension arm set is an aftermarket replacement made by JAZRIDER for the TAMIYA Hotshot, Hotshot II/2 and Boomerang 4WD chassis. These alloy arms replace the stock plastic items to offer a more rigid front mounting point, helping to maintain correct suspension geometry and resist wear during regular running.

Compatibility is restricted to the specified TAMIYA chassis; the part is intended for scale model use. When fitting, perform a trial assembly to confirm hinge-pin and ball-stud alignment, check ball bearings and pivot pins for wear, and ensure there is no binding through the suspension travel. Removing small paint flecks or machining flash on mating surfaces can assist in achieving a precise fit.

In tuning terms, aluminium lower arms offer reduced flex versus plastic, which can create a sharper steering response and steadier camber control in corners. You may need to fine-tune related suspension settings such as roll centre or anti-squat to optimise handling after installation.

For racers and hobbyists replacing worn plastic arms or seeking a firmer front end for improved handling, these aluminium arms provide a direct replacement that supports incremental tuning while preserving the original chassis geometry.