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

Aluminium front lower arms overview

The JR-THS06-GU aluminium front lower suspension arm set is an RC-scale replacement produced by JAZRIDER for the TAMIYA Hotshot, Hotshot II/2 and Boomerang 4WD chassis. These aluminium arms replace the original plastic pieces to provide a firmer front mounting point, retain correct suspension geometry, and resist the wear that accumulates during repeated use.

Fitment is restricted to the listed TAMIYA models; this aftermarket component is intended for hobby use only. When installing, carry out a dry assembly to confirm ball-stud and hinge-pin alignment, inspect bearings and pivot pins for wear, and ensure the suspension moves freely through its travel. Light removal of paint nibs or flash on mating faces can help achieve a tidy fit.

From a setup perspective, aluminium lower arms reduce chassis flex compared with stock plastic parts, often delivering sharper steering response and steadier camber control in corners. Expect to make small suspension adjustments such as roll-center or anti-squat tweaks to rebalance handling after fitting.

Hobbyists replacing worn or cracked plastic arms, or those seeking a firmer front end for incremental tuning, will find these aluminium lower arms a straightforward swap that supports refined suspension setup.