YSS Progressive Wire fork springs with a firmer design than stock.
YSS fork springs are made of high quality silicon spring steel. This allows the thickness of the wire to be reduced, which makes the spring more active and thinner, but at the same time effectively prevents twisting of the spring.
To minimize noise and improve oil flow in the fork, the springs are fully polished and ground on the top and bottom.
The scope of delivery includes 2 springs for a complete conversion of the fork. SPRING TYPE: PROGRESSIVE LENGTH: 425MM DIAMETER 1: 35MM HARDNESS 1: 6 N/MM HARDNESS 2: 14 N/MM LEFT AIR CHAMBER: 140 MM RIGHT AIR CHAMBER: 140 MM RECOMMENDED VISCOSITY: 15W
APPLICATIONS OF THIS PRODUCT: According to the data provided by the manufacturer, this article is compatible with the following brands, models and years: Kawasaki ZZR 600 D 100/50/27 CV, 74/37/20 kw 4cil. ZX600D 1 Bastidores: ZX600D henceforth00001-ZX600D henceforth14000 1990 Kawasaki ZZR 600 D 100/50/27 CV, 74/37/20 kw 4cil. ZX600D 2 Bastidores: ZX600D henceforth14001-ZX600D henceforth28000 1991 Kawasaki ZZR 600 D 100/50/27 CV, 74/37/20 kw 4cil. ZX600D 2A Bastidores: ZX600D-600001-ZX600D-602500 1991 Kawasaki ZZR 600 D 100/50/27 CV, 74/37/20 kw 4cil. ZX600D 3 Bastidores: ZX600D-602501-- 1992