Progressive Suspension 31-2525 Monotube Fork Kit The kit features a set of gas charged monotube dampers and a pair of Gold Wing proven custom Tuned fork springs and replaces the antiquated open bath internals of the stock fork Monotube style damping improves ride comfort as well as improving front end stability, Cornering and bottoming control The kit fits 2001 though current Honda Gold Wings and all F6B models, and replaces most of the internal parts of the fork No mods are required to install and it Retains the factory anti-dive function 1 in. lowered option available for F6B models