YSS SUSPENSION Progressive fork spring 743.03.57

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: 555MM
DIAMETER 1: 33MM
HARDNESS 1: 5.5 N/MM
HARDNESS 2: 9.5 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:
Yamaha VMX-12 1200 A Vmax 145 CV, 107 kw 4cil. 2WE 3JP4 Bastidores: 2WE henceforth10101-2WE henceforth14000 1990
Yamaha VMX-12 1200 AC Vmax 145 CV, 107 kw 4cil. 2WF 3JP5 Bastidores: 2WF henceforth03101-2WF henceforth05000 1990
Yamaha VMX-12 1200 B Vmax 145 CV, 107 kw 4cil. 2WE 3JP7 Bastidores: 2WE henceforth14101-2WE henceforth02000 1991
Yamaha VMX-12 1200 BC Vmax 145 CV, 107 kw 4cil. 2WF 3JP8 Bastidores: 2WF henceforth05101-2WF henceforth07000 1991
Yamaha VMX-12 1200 D Vmax 145 CV, 107 kw 4cil. 2WE 3JP9 Bastidores: 2WE henceforth20101-2WE henceforth35000 1992-1993
Yamaha VMX-12 1200 DC Vmax 145 CV, 107 kw 4cil. 2WF 3JPA Bastidores: 2WF henceforth07101-2WF henceforth08000 1992-1993
Yamaha VMX-12 1200 N Vmax 145 CV, 107 kw 4cil. 1FK 1FK Bastidores: 1FK henceforth00101-1FK henceforth10000 1985-1987
Yamaha VMX-12 1200 NC Vmax 145 CV, 107 kw 4cil. 1JH 1JH Bastidores: 1JH henceforth00101-1JH henceforth02000 1985-1987
Yamaha VMX-12 1200 U Vmax 145 CV, 107 kw 4cil. 2WE 2WE Bastidores: 2WE henceforth00101-2WE henceforth03000 1988-1989
Yamaha VMX-12 1200 UC Vmax 145 CV, 107 kw 4cil. 2WF 2WF Bastidores: 2WF henceforth00101-2WF henceforth01000 1988-1989