YSS SUSPENSION Progressive fork spring 743.03.63

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: 505MM
DIAMETER 1: 33.5MM
HARDNESS 1: 5.6 N/MM
HARDNESS 2: 8.2 N/MM
LEFT AIR CHAMBER: 150 MM
RIGHT AIR CHAMBER: 150 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:
Yamaha XJ 900 S Diversion 89 CV, 66 kw 4cil. 4KM 4KM1 Bastidores: 4KM henceforth00101-4KM henceforth23099 1995