YSS SUSPENSION Progressive fork spring 743.03.13

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: 550MM
DIAMETER 1: 35MM
HARDNESS 1: 5.8 N/MM
HARDNESS 2: 10.5 N/MM
LEFT AIR CHAMBER: 130 MM
RIGHT AIR CHAMBER: 130 MM
RECOMMENDED VISCOSITY: 7.5W


APPLICATIONS OF THIS PRODUCT:
According to the data provided by the manufacturer, this article is compatible with the following brands, models and years:
Kawasaki GPZ 900 R Ninja 116/100 CV, 85/74 kw 4cil. ZX900A A10 Bastidores: ZX900A henceforth68001-ZX900A-999999 1993-1994
Kawasaki GPZ 900 R Ninja 116/100 CV, 85/74 kw 4cil. ZX900A A7 Bastidores: ZX900A henceforth48001-ZX900A henceforth56000 1990
Kawasaki GPZ 900 R Ninja 116/100 CV, 85/74 kw 4cil. ZX900A A8 Bastidores: ZX900A henceforth56001-ZX900A henceforth68000 1991-1992