The most adjustable shock in the V-Twin market, the 990 Sport series shock features complete adjustability with a 0.4” adjustable height eyelet, rebound damping adjustment, High & Low Speed compression damping adjustment via easily accessible knobs, and threaded hand adjustable spring preload. The 990 features a high-pressure monotube with deflective disc damping routed through two unique circuits delivering a consistent feel through the damper stroke for improved performance and stability. The new and improved engineered jounce bumper features a captured design to help smooth and control bottoming. Every shock is hand-built, tuned and dyno tested at Progressive Suspension and come with a lifetime warranty. Engineered for aggressive sport inspired riders, the 990 sets the mark for excellence on your V-Twin motorcycle.