YSS SUSPENSION Progressive fork spring 743.03.24

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: 540MM
DIAMETER 1: 26.5MM
HARDNESS 1: 5.1 N/MM
HARDNESS 2: 6.8 N/MM
LEFT AIR CHAMBER: 160 MM
RIGHT AIR CHAMBER: 160 MM


APPLICATIONS OF THIS PRODUCT:
According to the data provided by the manufacturer, this article is compatible with the following brands, models and years:
Kawasaki Z 750 H Ltd 4 cilindros 74 CV, 54 kw 4cil. KZ750H 1 Bastidores: KZ750H henceforth00001-KZ750H henceforth13500 1980
Kawasaki Z 750 H Ltd 4 cilindros 74 CV, 54 kw 4cil. KZ750H 2 Bastidores: KZ750H henceforth13501-KZ750H henceforth31600 1981
Kawasaki Z 750 H Ltd 4 cilindros 74 CV, 54 kw 4cil. KZ750H 3 Bastidores: KZ750H henceforth31601-- 1982
Yamaha XJ 650 H 71 CV, 52 kw 4cil. 4K0 11N Bastidores: 4K0 henceforth55101-4K0 henceforth70000 1982
Yamaha XJ 650 H 71 CV, 52 kw 4cil. 4K0 27F Bastidores: 4K0 henceforth70101-4K0-200000 1983-1985
Yamaha XJ 650 H 71 CV, 52 kw 4cil. 4K0 4K0 Bastidores: 4K0 henceforth00101-- 1980-1981
Yamaha XJ 650 N 50 CV, 37 kw 4cil. 4K0 11R Bastidores: 4K0 henceforth50101-4K0 henceforth55000 1982
Yamaha XJ 650 N 50 CV, 37 kw 4cil. 4K0 27G Bastidores: 4K0-200101-4K0-300000 1983-1985