Product Description
BMW 5300 Series 3-Way Coilovers - AST Suspension RAC-B1501S
BMW 5300 Series 3-Way Coilovers - AST Suspension RAC-B1501S
For the best performance on the track, AST Suspension designed the Competition 3-way adjustable series. The 5300 Series shock absorbers are rebound adjustable in 12 positions on the strut.
The high speed compression is adjustable in 12 positions and the low speed compression is adjustable in 14 positions. Both compression adjustments are made using an external canister. All adjusters work completely independent.
Many years of technical knowledge, testing and experience has been refined, fettled and brought together to create a perfect balance between the choice of springs and the corresponding damping characteristics. This makes it a versatile product for every customer. The 5300 series shock absorbers are the best solution for every race team. Once installed, the AST shock absorbers are easy to setup, highly reliable and require low maintenance during the season because of the high grade of materials used.
All of this together makes the 5300 series shock absorbers a championship winning damper, over and over again. The AST 5300 Suspension is worldwide renowned for its performance at every level.
FEATURES
- High end, track ready suspension.
- Rebound, Low & Hi Speed Compression Adjustable ('Triples'), with a remote reservoir.
- Remote reservoirs allow additional travel, heat dissipation and oil/nitrogen gas capacity.
- 4.5mm diameter shaft struts are inverted and offer exceptional strength, which in turn reduces geometry change under corner and braking monoevers.
- Aluminum cylinder, threaded body shocks, factory mounting style
- New low friction seal on all AST dampers.
- Spherical lower eye shock mounts.
- Reservoir with hose or piggyback (piggyback examples: 2008 STI; BMW E36 rears).
- Spherical upper shock mount assemblies.
- Synthetic hydraulic fluid.
- Optional DLC (diamond like carbon) 44.5mm inverted shafts.
- Optional DDP piston (double digressive piston).
- Double Digressive Pistons are recommended for use on the non-driven wheels.
- 4WD/FWD vehicles: DD pistons for both rear axle struts/shocks.
- RWD vehicles: DD pistons for both front axle struts/shocks.
- Fully serviceable and rebuildable.
- Revalveable for specific characteristics.
AST Suspension was founded by Piet Kreeft and Peter Smits, their roots in suspension development and industrial manufacturing pushed AST to the forefront even in the early stages of the company. Piet Kreeft started his career at KONI Suspension’s motorsport department. For nearly 15 years, Piet supported professional auto and motorcycle racing for KONI at some of the most prestigious circuits around the world. Piet later left KONI to start Aragosta Suspension, becoming a leader in motocross and GP racing. Building upon this success, Aragosta expanded their product range to include most vehicles and participated at World Rally championships, Kartcross and Touring car events, setting records in the Paris-Dakar Rally in both the T1 and T2 categories. Eight years later, Piet formed HI TECH where he worked with INDY cars for nearly a decade. Piet was very active in INDY CAR chassis and suspension and worked alongside drivers including the world renown Emerson Fittipaldi. After leaving HI TECH, Piet formed AST with Peter Smits of Smits Factory in 2000. Together, the duo combined their years of technical expertise to innovate and manufacture new suspension systems. AST made its name through unparalleled quality control and manufacturing flexibility, setting it apart from many others in the suspension industry.
