PS fork spring kit standard duty, 39mm - 04-15 XL; 15-20 Street XG500/750 (excl. XG750A) (NU) 507697 Note: All modules can be

Note: All modules can be set to kick or electric start by a certified S&S dealer equipped with Super Stock diagnostic cable & software

Used to adjust preload

These systems may not fit custom frames

Intake seals only

PS fork spring kit standard duty, 39mm - 04-15 XL; 15-20 Street XG500/750 (excl. XG750A) (NU) 507697 Note: All modules can be35 50 lbs inch spring rate. 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.