Fox Suspension Float DPS Performance Evol Rear Shock. Focused on making sure every mountain adventure is as buttery smooth as possible, this sensational shock is the perfect pick for your back-end suspension setup. Equipped with a Dual Piston base valve, control over your ride is assured and easy, thanks to the specific compression and rebound pistons working hard to keep your run as efficient and compliant as possible. Adjustable Rear MTB Shock. The three-position DPS damper allows you to fine-tune your compression for the most comfortable experience for your chosen route, while the one-piece EVOL air sleeve enhances small bump sensitivity and overall responsiveness, making for a high-performance rear shock to take your riding to the next level. Features: Air Sleeve: One-piece EVOL Spring: Air Valve Type: Dual Piston Damper: DPS with three-positions – Open, Medium, Firm Weight: 221g Buy Fox Suspension Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.