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and an air-chamber adjustment improve response
The YSS CO308 Open Fork Cartridge Kit is a groundbreaking suspension upgrade engineered to completely replace your factory fork internals
a detailed guide is included
Whether you are restoring a vintage dirt bike for show or competing in vintage MX racing
enabling riders to fine-tune their suspension to perfectly match their riding style and the demands of the road
Wilbers Fork Spring - Zero friction - Progressive YSS and an air-chamber adjustment improveWilbers 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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