Black Type III hard coat anodized finish. Adjustable preload for rider setup also allows for minimal pre-load adjustment when changing between rider’s weights and loads. Features adjustable rebound damping that is specifically designed to make fast, precise, and repeatable changes to ride comfort and performance with a simple turn of a knob. Low friction sleeve bearings both top and bottom for ease of installation, this also allows the shock to float in its mount and avoid shock bind. Hard anodized, 46mm billet aluminum monotube design with a lightweight high-flow piston design for improved fluid flow resulting in unmatched handling and bike control. Hard chromed shaft is 14% larger for increased strength. Internal floating nitrogen piston ensures consistent damping performance. Deflective disc valving self-adjusts to frequency and ensures controlled performance. Legend’s durable and low-friction sealing system and sliding bearings provide improved performance and feel. OEM mounting hardware can be reused. OEM replacement reference 54000138A. Note: Standard Duty shock is advised for up to 350lbs. (159kg) total loaded weight. A Heavy Duty shock is advised for over 350lbs (159kg) rider/passenger/gear total weight. Note:: 13″ is the standard length for 18-21 FLHC; 18-24 FLHCS; 22-24 FXLRS; 22-24 FXLRST; 2022 FXRST.