AST 4100

The 4100 Series shocks introduce high performance monotube technology at prices competitive with twin tube insert coilover kits.  They include purpose built strut and shock bodies, shortened from stock lengths.  They are single adjustable (rebound only) and can be custom valved for your application.  4100s use the same internals as our 4300 Competition shocks.

» Learn more about the AST 4100 series here

AST 4200

The 4200 Series shocks use AST’s Twin Piston Dual Adjust (TPDA) technology.  Similar non adjustable versions have been found in the highest forms of racing.  TPDA builds on this technology to allow for 2 adjustment knobs to be mounted on the shock body (no tools required).  Quick rebound and compression changes can be made in the pits in seconds.  4200s are fully customizable and rebuildable.

» Learn more about the AST 4200 series here

AST 5000 Series

Taking the knowledge and experience learned with the 4000 Series of dampers, AST is now building the new 5000 Series dampers. One key design feature of the 5000 Series are their inverted strut design, which makes for a very stiff strut assembly, providing better suspension geometry under heavy lateral and braking loads seen in a road course environment.

» Learn more about the AST 5000 series here

Other AST Products

In most cases AST builds shock mounts for each application or designs the shocks to work with common size shafts.  Custom coilover shocks can be built with proper spacers to match your application.  Air jacks are also available for open wheel and full bodied vehicles.

» Learn about other AST USA products here