Wilbers Fork Spring - Zero friction - Progressive WESA This premium kit represents a

This premium kit represents a significant leap beyond the capabilities of the YSS PD Valve

It automatically adapts to load conditions without any buttons

we maintain seat height while improving handling and comfort

hard braking)

Wilbers Fork Spring - Zero friction - Progressive WESA This premium kit represents aWilbers 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: