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Gas and oil are mixed in the main body
ZERO Friction springs plus the right oil deliver a markedly better setup
The YSS CO308 Open Fork Cartridge Kit is a groundbreaking suspension upgrade engineered to completely replace your factory fork internals
allowing for precision tuning to match your unique riding style and road conditions
we successfully combined Wilbers suspension technology with the BMW ESA system at the beginning of 2010 — a perfect union of innovation and performance
Wilbers Fork Spring - Zero friction - Progressive Fork Springs Gas and oil are mixedWilbers 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:
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