RWD V-Twin Rs-1F Front Fork Cartridge Set For Harley RWD V-Twin Rs-1 F Front Fork Cartridge enhances motorcycles by integrating custom Eibach springs, specifically tuned to minimize front end dive and improve braking control. Its Nitrogen charged Internal Floating Piston Monotube design is aimed at delivering unmatched ride comfort and performance. Features: Clickers are top mounted and external for easy dampening adjustment Superior ride comfort and performance from rising rate progressive dampening and springs Massive 1 piece 1 3/4 shock body for added oil volume and better stability Nitrogen charged Internal Floating Piston Monotube design Quality custom Eibach springs tuned to reduce front end dive and give the rider better braking control 100 manufactured and assembled in the USA