Wilbers Progressive Fork Springs K75 except SHOWA '86-'91

Wilbers Progressive Fork Springs have several advantages over linear springs. A Progressive Rate Spring has the advantage of a rising rate resistance to compression. The benefit of this is that the spring can be soft enough at the start of the travel to offer a "plush" ride, yet be firm enough at the end of the travel to soak up the big bumps.

WILL NOT FIT SHOWA FORKS

For 92-on (date of manufacture 08/91-on) K75 models with 41mm Showa fork please see part number 600-0065-02.