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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
Piston Diameter: 45 mm
With its highly efficient gas-charged design
By combining precision-calibrated fork springs
Promoto tubes match OEM dimensions precisely and can save up to 50% versus original parts
This premium kit represents a significant leap beyond the capabilities of the YSS PD Valve
Wilbers Fork Spring - Zero friction - Progressive Adjustline Piston Diameter: 45 mmWilbers 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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