This RC-scale rear lower arm set is supplied for the TAMIYA Hornet EVO (58742) chassis as model JR-THNE02-LB. Machined from aluminium to improve pivot stiffness versus standard plastic arms, these parts keep the stock mounting locations for a direct and reliable fit.
Installing the arms follows standard rear suspension procedures: remove the factory lower arms, retain hinge pins and fasteners when possible, fit the aluminium pieces into the stock mounts, and verify suspension travel and toe after assembly. No additional adapters are normally required for Hornet EVO (58742) installations.
These aluminium lower arms influence roll centre and rear traction response, providing steadier geometry under load and helping with repeatable handling during track runs. After fitting, confirm ride height and alignment and fine tune shock and toe settings as needed for best lap-to-lap consistency.