Wilbers Fork Spring - Zero friction - Progressive Fork Tubes the first spring rate is

the first spring rate is too soft while the second is too firm

Whether you're carving through corners

They eliminate bottoming out and keep the front tire firmly glued to the road or trail for maximum cornering grip

With pivoting compression tank

– Wilbers Nivomat shock absorber

Wilbers Fork Spring - Zero friction - Progressive Fork Tubes the first spring rate isWilbers 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: