Wilbers Fork Spring - Zero friction - Progressive Fork Tubes Use the top-cap threaded rings

Use the top-cap threaded rings to compress the internal springs and set your exact rider sag based on your gear and riding weight

The YSS Fork Fork Cartridge Kit is not just an upgrade

To achieve a fully individualized tune and extended adjustment range

The combination improves damping behavior

Wilbers Fork Spring - Zero friction - Progressive Fork Tubes Use the top-cap threaded ringsWilbers 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: