Swallows Racing/ Quantum Zero. One Way Adjustable Coilovers XKR X150 5.0 - srq003 £2,635.00 All Swallows Racing products utilise over 35 years experience in motorsport and are extensively tested on and of the track to ensure the maximum performance for you car with proven results. One.Zero THE MOST POPULAR DAMPER IN CLUB MOTORSPORT One.Zero is your easy-to-understand introduction to externally adjustable damping, trusted by amateur racing drivers across the broad spectrum of national motorsport. ONE IS ALL YOU NEED. A single clicker adjuster provides quick and easy adjustment of low-speed damping. The solitary adjuster has 24 positions and effects bleed across the piston in compression and rebound. Qty Description NO COMPROMISE Quantum Zero is a range of monotube shock absorbers. No matter which vehicle or how many ways of adjustment, every Zero shock absorber shares the same basic architecture and many of the same components. Throwing Shapes A range of pistons allow the shape of the damping curve to be easily tuned. Linear. Digressive. Find your winning formula. Infinitely Adjustable Zero shock absorbers are available with up to two ways of external damping adjustment—and all can be opened by a competent individual and re-valved or re-jetted internally. Gas Pressurised Zero shock absorbers are gas pressurized. The gas and oil are kept separate using a floating piston. This ensures consistent performance with the shock absorber in any orientation. One-wayLow-speed bleed. High-speed Independently adjustable compression and rebound shim stacks. PistonLinear and digressive variants available. Specifications Compatible with: Jaguar XK - XKR/ X150 Suspension Warranty Options In order to provide continuing peace of mind and support throughout the life of your Jaguar, we offer extended warranty packages to compliment our standard 3 month mechanical warranty.