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.
» Click 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. » Click here

AST 4300

The 4300 series can be built to customer requirements.  Rebound and hi/low speed compression are adjustable.  Options include hose lengths, inverted/non-inverted designs, quick disconnects.  Custom lengths and applications are available for road cars and purpose built race cars.  All 4300s are built to match customer spring rates and furnished with dyno plots.
» Click 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. » Click here