Wilbers Fork Spring - Zero friction - Progressive YSS the re-engineered frame and swingarm

the re-engineered frame and swingarm opened space for a conventional shock absorber — the perfect foundation for our self-leveling Wilbers Nivomat system

and provides a highly predictable

transforming handling and cornering while preserving authentic feel

designed for plug-in compatibility on select BMW four-valve models

Wilbers Open Cartridge Kit

Wilbers Fork Spring - Zero friction - Progressive YSS the re-engineered frame and swingarmWilbers progressive fork springs ZERO Friction finishing Our vibratory finishing process (trough vibrator with tailored media) micro polishes the spring surface. The resulting fine, shiny finish reduces surface roughness and friction hence ZERO Friction. Pair with our specially formulated Wilbers fork oil and the specified air chamber for your vehicle to maximize performance. Product may differ from the picture. Recommended viscosity and air chamber: