Wilbers Powered by ZF Closed Cartridge Kit PD Valve Engineered specifically for classic dirt

Engineered specifically for classic dirt bikes

Negative travel is corrected for better geometry and a calmer chassis

and an air-chamber adjustment improve response and composure

Adjustability: 25-Position Compression

especially at the rear

Wilbers Powered by ZF Closed Cartridge Kit PD Valve Engineered specifically for classic dirtClosed cartridge system developed with ZF. Our acclaimed closed cartridge runs on 3 bar nitrogen for cavitation free, consistent damping even under heavy loads and high temperatures. Paired with our finely finished, ultra low friction ZERO Friction fork springs, it delivers precise, repeatable adjustments. Highlights: Compression range: 10 clicks Rebound range: 10 clicks Spring preload range: 10 mm 30 mm piston New: fork oil included