Available in Black Type III hard-coat anodize. REVO coils provide improved plush ride-quality, control and resistance to bottoming-out. REVO extended coil length has larger sweet spot without increasing overall shock length. Allows minimal pre-load adjustment by hand when changing between riders weights or loads. Adjusts by hand, no tools needed. Available in 13in. and 14in. , standard or heavy-duty applications. Easy installation and alignment, provided by spherical bearings on both top and bottom. 35mm monotube construction. Deflective disc valve stacks. Balanced/ matched piston and base-valve design specific for these motorcycle applications. Low friction sealing system and PTFE based sliding bearings for improved performance and feel. Seven external knob adjustments allow fine-tuning of rebound. Seven external knob adjustments allow fine-tuning of compression. Provides optimum rebound and compression performance for any given rider weight, personal ride-quality preference or personal riding style. Nitrogen gas bladder design allows ultra-fast response and stiction-free movement. Light to heavy riders can fine-tune ride preference. Aggressive to casual riding styles can tune to desired quality or personal preference. NOTE: Heavy-duty applications are recommended for 250 lb. + rider and passenger total weight. Also consider heavy-duty if the majority of your riding is 2-up, stunt riding or aggressive riding style.