High-pressure gas monotube design for ultimate performance. Remote Adjustable Preload (RAP) features a remote hydraulic adjuster to make it even easier to fine-tune your suspension for different loads, such as passengers or luggage. Five-position rebound adjustment to tailor the suspension for changing conditions and riding styles. Hard-anodized aluminum body and components for excellent durability and corrosion resistance. 46 mm bore and deflective disc piston provide 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..