Wilbers Fork Spring - Zero friction - Progressive Fork Cartridges Eliminate Factory Limitations: Drastically improves

Eliminate Factory Limitations: Drastically improves front-tire grip

Our premium 623 shock features an external compression reservoir connected via a flexible steel hose

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

Each stroke of the shock pumps oil into the cylinder

Wilbers Fork Spring - Zero friction - Progressive Fork Cartridges Eliminate Factory Limitations: Drastically improvesWilbers 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: