This aftermarket set supplies a matched pair of front and rear upper arms made for the HPI Savage 21 chassis, intended for direct replacement and setup work. The main arm bodies are machined from Alloy-7075 and the kit comes with a titanium tire rod plus the mounting screws and a hex wrench for straightforward fitting.
These arms replace the stock upper arms and form part of the suspension geometry and steering linkage path. Upgrading to Alloy-7075 components and a titanium tire rod increases stiffness and load capacity at the mount points, which can alter handling balance when fine tuning or under heavy use. Confirm your existing ball cups and hardware fit before final assembly.
Installation notes: the package includes the screws and a hex wrench so basic on-chassis fitting is possible without sourcing tiny extras. Check thread engagement and retorque fasteners after initial runs, and inspect fittings periodically following heavy bashing or competition use.
Use this set when replacing worn plastic arms or when testing a stiffer arm option for tuning; always confirm fitment on your Savage 21 before extended use.
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