AST-USA provides a 12 month warranty on the 4100 Series shocks and dampers.
» Rebound Adjustable ("Singles")
» 22mm diameter shaft struts, non-inverted
» Steel cylinder body shocks, non-inverted
» Rubber bushings for "eye" shock mounts
» Optional spherical upper shock mount assemblies
» Non-synthetic hydraulic fluid
Price includes 4 helper springs with Hyperco main springs of custom spring rate of your choice. Swift main springs also vailable at aditional cost.