Wilbers Fork Spring - Zero friction - Progressive PD Valve these stock springs tend to

these stock springs tend to feel softer under load — for example

Sophisticated hydraulic system

The YSS PD Valve works seamlessly within your existing fork structure

These refinements collectively provide improved comfort

The stereo alternative with the same Wilbers DNA: stepless preload adjustment

Wilbers Fork Spring - Zero friction - Progressive PD Valve these stock springs tend toWilbers 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: