Penske 7500 Series 1-Way Caterham After further development, we are now able to offer a Penske Racing Shocks 7500 COSA kit for your Caterham. This now includes the clicker adjuster. 7500 Series 1 Way - no remote reservoir.� Digressive pistons in the front dampers and linear rear.� We have improved the fitment and valving curve more recently to now make this damper outstanding value and performance. The most versatile Penske shock absorber available, the entry-level 7500 series is available in a variety of sizes and adjustability options. From the track to the street, this model can be customised to meet any driving style or condition. The 7500 is available in both Coilover and non-coilover style in all body lengths. Single shaft adjuster options include rebound, compression, or rebound and compression combined. The 7500 is now also available as a double adjustable unit � allowing independent adjustment of compression and rebound. SKU : PS-7500 Series Weight: 3.70 lbs The 7500SA has been run for the past 20 years in multiple racing markets. One of the first-ever rebuildable shocks, the 7500SA is a quality single adjustable shock that uses standard Penske parts. CNC machined to hold the tightest tolerances, the 7500SA is the most repeatable aluminium bodied shock on the market. Cost-effective and reliable, this is the best single adjustable shock on the market. Optional internal jets allows the customer to choose either compression, rebound, or open jet configurations. The design features a separator piston in the reservoir which has been proven to maintain damper performance and improve response, as well as a single shaft adjuster if desired. The 7500 is available in both Coilover and non-coil-over style in all body lengths. There are also several options for body cap style which allows its use in many regulated spec series that require a sealed shock. Due to its design, the 7500 can be made to fit many applications simply by changing its modular body cap and eyelets. Currently, the 7500 is being used in all forms of Short Track Racing (NASCAR Weekly Racing Series, USAC Sprints and Midgets, Asphalt and Dirt Late Models and Modifieds). The Penske Advantage Owner Rebuildable and revalvable Adjuster Option (Open, Comp., or Rebound) Assembled to Customer Specifications 5�, 6�, 7�, 8� and 9� Lengths (shorter lengths available, please call for more information) All CNC Machined Parts Provisions for Coilover Kit (Smooth Body) Consistent Performance NASCAR Approved Personalized Setups Made in the U.S.A - Engineered for your Caterham in the UK TECH MANUAL (PS-7500-DA) 08-10