
Standard Spring PROGRESSIVE SUSPENSION (manufacturer part number: 11-1525): progressive fork spring designed for Vintage/Classic and Touring motorcycles. Its progressive winding design offers a soft initial phase for comfort during daily use, followed by a gradual increase in stiffness to better resist bottoming out during significant compressions. Made in the USA, with a neat black finish, it maintains the original geometry of the fork to preserve handling and chassis behaviour.
Designed to enhance comfort in the initial phase and limit bottoming out at full stroke, this spring is aimed at riders seeking a more progressive fork response without altering the original geometry of their machine. Compatible with several Harley-Davidson Dyna models (FXDLS, FXDWG, FXDL) from the mentioned years, it easily fits into 49 mm forks. Ideal for riders who want a more civilized fork on varied roads while retaining the original road behaviour.