
Progressive Suspension — Standard Spring (manufacturer ref. 11-1131)
Black progressive fork spring, designed to achieve a balance between comfort and control on vintage and road machines. The progressive winding offers a soft initial phase to smooth out small bumps, then increases compression resistance to limit bottoming out during heavier loads. Maintains the original geometry of the fork while providing a more precise handling feel.
Mounting suitable for Vintage/Classic and Road/Touring universes. Among the frequently associated models: Harley-Davidson FLSTFBS Fat Boy S (2017), FLSTN Softail Deluxe (2017), and FLSTFB Fat Boy Special (2017). For touring models 2002-2005 equipped with cartridge forks, use the specific reference 0405-0070.
Part intended for riders who want to maintain the original geometry while improving fork response: ease of installation, progressive behaviour, and resistance to significant compressions. Manufacturer reference: 11-1131 — Progressive Suspension.