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The YSS PD Valve works seamlessly within your existing fork structure
and stability
Why Choose the YSS CO208 Cartridge Kit
Why Choose the YSS MZ366 Monoshock
The premium-value alternative in our lineup
Wilbers Fork Spring - Zero friction - Progressive Twin shocks The YSS PD Valve worksWilbers 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:
