Wilbers Fork Spring - Zero friction - Progressive Streetbox increasing internal pressure and automatically

increasing internal pressure and automatically tuning both spring rate and damping

this premium formula was designed to meet the demands of modern cartridge forks — both open and closed systems

and usage — and

– 2 sets SKF oil seals & dust caps

the vehicle exhibits excessive damping in the fork but insufficient damping in the rear shock absorber

Wilbers Fork Spring - Zero friction - Progressive Streetbox increasing internal pressure and automaticallyWilbers 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: