These aluminium rear knuckle arms are an aftermarket replacement for the Blitzer Beetle, Stadium Blitzer, and Stadium Thunder rear suspension. Machined aluminium construction and an anodized red surface deliver a firmer mounting point than standard plastic arms, aimed at hobbyists focused on rear-end response and part longevity.
The arms conform to the stock rear knuckle mounting layout on the listed models and are supplied to fit existing suspension assemblies without requiring chassis modification. Installation commonly uses the original fasteners and ball studs from the vehicle.
They are suited for tuning approaches where added lateral stiffness at the rear is desired, such as refining roll balance or when upgrading other suspension components to metal hardware. Expect technical, measured differences in rear behaviour rather than exaggerated performance claims.