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The second spring rate also provides a greater reserve
and a specially designed valve piston system that fine-tunes velocity-dependent damping for a balanced
Kawasaki ZRF900F – Fork Feel & Damping Authority
adding manual high-/low-speed compression adjusters for additional fine-tuning
The stock rear shock uses a very hard spring that compresses minimally
Wilbers Fork Spring - Zero friction - Progressive WESA The second spring rate alsoWilbers 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:
