Wilbers Fork Spring - Zero friction - Progressive Fork Upgrade Kit After an extensive development period

After an extensive development period

allowing you to fine-tune how quickly the shock returns after a bump

Maximum riding comfort — no electronics required

Threaded Preload Adjustment: Dial in your precise race sag with the threaded preload collar

while retaining the convenient adjustment through the original ESA module in the cockpit

Wilbers Fork Spring - Zero friction - Progressive Fork Upgrade Kit After an extensive development periodWilbers 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: