The GPM SP3021 front knuckle arms are precision-machined aluminum parts designed to provide consistent steering feedback for the HPI Sport 3. They are intended to enhance control fidelity and component longevity without requiring chassis modification.
Installers should find the SP3021 items straightforward to fit into standard HPI Sport 3 front suspension assemblies. The parts are suitable for hobbyists seeking reliable, precision-oriented upgrades that support predictable handling adjustments.