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Wilbers progressive fork springs
electronics
The stereo alternative with the same Wilbers DNA: stepless preload adjustment
Transform Your Front End: YSS CO308 Open Fork Cartridge Kit
– 623 rear shock with external reservoir
Wilbers Fork Spring - Zero friction - Progressive Fork Upgrade Kit Wilbers progressive fork springsWilbers 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:
