Legend AIR Suspension Systems sets the high mark in ultimate ride quality. Exclusive Aramid Fiber air spring technology provides spring rate adjustability. Air springs maximize wheel travel and adjust to any desired ride height Hard anodized machined aluminum bodies Legend's low-friction seals eliminate stiction High flow piston reacts quickly for improved fluid flow management Deflective disc valved damping self adjust to frequency and ensures controlled performance System includes OEM looking black handlebar mounted control for easy "on-the-go" adjustability Lifetime Warranty