Wilbers Fork Spring - Zero friction - Progressive Fork Seals our shock corrects rebound and

our shock corrects rebound and compression while offering a broader

Threaded Spring Preload: Easily adjust front-end sag via the fine-threaded collar system to properly balance your chassis based on heavy luggage

or cruising on highways

Originally developed as a special solution for BMW four-valve Telelever models

These “ST” models are sharper than “Special” variants

Wilbers Fork Spring - Zero friction - Progressive Fork Seals our shock corrects rebound andWilbers 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: