High-pressure gas monotube design for the ultimate performance. Five-position rebound adjustment to tailor the suspension for changing conditions and riding styles. Threaded shock body with a wide range of adjustment to fine-tune preload and sag. Hard anodized aluminum body and components for excellent durability and corrosion resistance. 46 mm bore and deflective disc piston provides precise damping. 16 mm hard chrome shaft rides on custom viton seals for low friction and leak-free reliability. Each shock is custom tuned (damping and spring rate) for each fitment. Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues such as swingarm/axle to exhaust contact as well as chain/ belt guard or tire contact.. Heavy Duty Applications are recommended for bikes operating at or near the manufacturer’s maximum load rating over 50% of the time..