YSS SUSPENSION Progressive fork spring 743.03.66

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: 517MM
DIAMETER 1: 26.5MM
HARDNESS 1: 6 N/MM
HARDNESS 2: 8 N/MM
LEFT AIR CHAMBER: 160 MM
RIGHT AIR CHAMBER: 160 MM
RECOMMENDED VISCOSITY: 10W


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 650 F 67/50 CV, 49/37 kw 4cil. KZ650F 2 Bastidores: KZ650F henceforth07201-KZ650F henceforth12000 1981
Kawasaki Z 650 F 67/50 CV, 49/37 kw 4cil. KZ650F 3 Bastidores: KZ650F henceforth12001-KZ650F henceforth12013 1982
Kawasaki Z 650 F 67/50 CV, 49/37 kw 4cil. KZ650F 3 Bastidores: KZ650F henceforth12401-- 1982
Kawasaki Z 650 F 67/50 CV, 49/37 kw 4cil. KZ650F 4 Bastidores: KZ650F henceforth14301-- 1983
Yamaha XS 1100 95 CV, 70 kw 4cil. 2H9 3X0 Bastidores: 2H9-130101-2H9-140000 1980
Yamaha XS 1100 95 CV, 70 kw 4cil. 2H9 3X0 Bastidores: 2H9-140101-2H9-150000 1981-1983
Yamaha XS 1100 S 95 CV, 70 kw 4cil. 5K7 5K7 Bastidores: 5K7 henceforth10101-5K7 henceforth20000 1981-1982