The GPM EMX2021 aluminium knuckle arm set is a precision-engineered replacement for TRAXXAS E-MAXX steering assemblies, aimed at increasing steering fidelity and part longevity. Constructed from high-quality aluminium, the set reduces play in the steering linkages and gives a firmer, more repeatable steering input. It is intended for hobbyists who prefer robust, upgrade-oriented components for regular or competitive use.