YSS SUSPENSION Progressive fork spring 743.07.03

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: 485MM
DIAMETER 1: 25MM
HARDNESS 1: 5.5 N/MM
HARDNESS 2: 8.5 N/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:
Cagiva Alazzurra 650 50 CV, 37 kw 2cil. 3M Bastidores: --- 1985-1986
Cagiva Alazzurra 650 56 CV, 41 kw 2cil. 3M Bastidores: --- 1985-1986
Honda CB 550 F Supersport 50 CV, 37 kw 4cil. CB550F 1 Bastidores: CB550F-1015400-CB550F-1027819 1976
Honda CB 550 F Supersport 50 CV, 37 kw 4cil. CB550F 2 Bastidores: CB550F-2104674-CB550F-2199999 1977-1978
Honda CB 550 K Four 50 CV, 37 kw 4cil. CB550K 3 Bastidores: CB550K-2011718-CB550K-2026474 1977-1978
Honda GL 500 D Silverwing 27 CV, 20 kw 2cil. PC02 C Bastidores: PC02-3000001-PC02-3099999 1982-1983
Honda GL 500 D Silverwing 50 CV, 37 kw 2cil. PC02 C Bastidores: PC02-4000003-PC02-4099999 1982-1983
Kawasaki Z 1000 A 85 CV, 63 kw 4cil. KZT00A 1 Bastidores: KZT00A henceforth00001-KZT00A henceforth27500 1977
Suzuki GSX 750 ES semicarenado 86 CV, 63 kw 4cil. GR72A D Bastidores: GR72A-100001-GR72A-119649 1983-1984
Suzuki GSX 750 ES semicarenado 86 CV, 63 kw 4cil. GR72A F Bastidores: GR72A-119650-GR72A-120649 1985
Suzuki GSX 750 ES semicarenado 90 CV, 66 kw 4cil. GR72A G Bastidores: GR72A-120650-- 1986