The correct shock-absorbers are, just like the correct tire-choice, very important to the handling of your car. AST gives you exactly what you are looking for the perfect set-up. 35 years of experience and technical development are bound together in each shock-absorber manufactured by AST.
AST dampers have been honed on race circuits all over the world in many different disciplines. AST have developed advanced shock-absorbers for many different cars, all these shocks are built to the highest standards which is necessary to improve the handling of modern cars of today.

AST's History

35 Years ago, Piet Kreeft started his career at Research & Development Department at a well-known shock absorber company. At that time they supplied shock absorbers to the automotive racing and other industries. After a short period in R&D, Piet specialized in suspension technology for sports and racing applications.
Five days a week he worked on the development of shock absorbers, while his weekends were spent on sports and race tracks all over the world where he amassed a wealth of experience and information. He always maintained close contacts with the engineers and drivers of the cars and was able to test new developments in practice immediately.
We can safely say that the shock absorbers purpose-built by Piet Kreeft helped many driver cross the finish line as the race winner. And among many famous names was Emmerson Fittipaldi in the Indycars in Indianapolis, USA.
Then, Piet Kreeft decided to combine his extensive knowledge and experience with the specialist product know-how of the Smits Engineering Works of Valkenswaard, The Netherlands, leading to the creating of AST.

About AST's Commitment to Quality

Smits Machinefabriek is the qualified partner of AST. This factory manufactures high quality precision machine parts for various branches of industry. They have the professional methods, the appropriate organizational culture and the first-class specialists and machines needed to put good ideas into production.

High-accuracy measuring and testing takes place throughout the production process, of all components through to the assembly. Smits Machinefabriek has a climate controlled measuring department, comprehensively equipped with sophisticated measuring equipment.

The quality management system is Lloyds approved in accordance with the NEN and ISO 9001: 2000 quality assurance standards.

AST Product Line

AST product line include Sportline Coilovers, designed for fast road use; Sportline II Coilovers , designed for fast road and track use and Competition Coilovers, designed exclusively for circuit races or rallyies.

Sportline Coilovers are mono-tube high-pressure, coil-over shock absorbers. Damping force on rebound and compression is adjustable in 12 positions. These shock absorbers are adjustable to several heights. Sport-Line shocks can be rebuilt and maintained. They guarantee a comfortable ride and are equipped with adjustable aluminum anodized spring seat.

Sportline I: Mc Pherson type with 22 mm shaft.
Sportline II: Mc Pherson type with 45 mm shaft

The Competition Coilovers are constructed using only the best quality materials for increased performance and low friction attributes. These units are height adjustable with 3 way adjustment of the dampers, allowing changes to the low speed compression, high speed compression and the rebound circuits. The compression circuits are located on an externally mounted reservoir which allows an increased level of oil capacity and a very high nitrogen pressure to eliminate aerating. Each adjustment has 12 positions, thus allowing very fine tuning to help with handling characteristics such as pitch, dive, roll, balance and weather conditions. Each set comes with high quality top mounts where allowed, and a choice of spring rate. (Inverted struts are used where applicable).

Wan to to know more? Watch the AST movie!