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We also optimize negative spring travel for better geometry and a calmer chassis at speed
This prevents oil thinning and cavitation (foaming) during hard
Suspension for big choppers and cruisers
adjusting both spring rate and damping
it's a transformation
Wilbers Fork Spring - Zero friction - Progressive Fork Upgrade Kit We also optimize negative springWilbers 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:
