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

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

are equipped with a sophisticated hydraulic system which guarantees exceptional performance in cornering and braking

delivering a level of performance that is typically found in high-end racing machines

clean profile with a 30mm piston that integrates seamlessly with your vintage motorcycle’s frame without the bulk of external reservoirs

By pairing a heavy-duty 36mm radial piston with a robust 16mm hard-chrome shaft

Wilbers Fork Spring - Zero friction - Progressive Fork Springs 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: