For upside down forks. Progressive rate fork springs of superior quality. Precision wound and made of high quality chrome silicon wire. Provides a smooth ride but the progressive rate helps prevent bottoming out when taking big bumps. Each kit comes with progressive fork springs and necessary spacers.
Fits: > 18-20 FXFB Fat Bob 107; 18-23 FXFBS Fat Bob 117; 18-23 FLSB Sport Glide 107; 20-21(NU)FXLRS Low Rider S 114; 22-23 FXLRS Low Rider S 117; 22-23 FXLRST Low Rider ST 117; 2022 FXRST(NU)Low Rider El Diablo 117. (upside down forks).
