YSS SUSPENSION Progressive fork spring 743.03.50

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.

2 springs are included for a complete fork conversion.
SPRING TYPE: PROGRESSIVE
LENGTH: 515MM
DIAMETER 1: 32MM
HARDNESS 1: 5 N/MM
HARDNESS 2: 7.7 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 FZ 750 100 CV, 74 kw 4cil. 1FN 1FN Bastidores: 1FN henceforth00101-1FN henceforth13000 1985
Yamaha XJ 600 NH 50 CV, 37 kw 4cil. 4BR 4KA1 Bastidores: 4BR-133101-4BR-136999 1994
Yamaha XJ 600 NH 50 CV, 37 kw 4cil. 4BR 4KA2 Bastidores: 4BR-144101-4BR-200099 1995
Yamaha XJ 600 NH 50 CV, 37 kw 4cil. 4BR 4KA3 Bastidores: 4BR-200101-- 1996
Yamaha XJ 600 NH 50 CV, 37 kw 4cil. 4BR 4KA4 Bastidores: 4BR-229301-- 1997
Yamaha XJ 600 NN 34 CV, 25 kw 4cil. 4LX 4MB1 Bastidores: 4LX henceforth04101-4LX henceforth05999 1994
Yamaha XJ 600 NN 34 CV, 25 kw 4cil. 4LX 4MB2 Bastidores: 4LX henceforth06101-- 1995
Yamaha XJ 600 NN 34 CV, 25 kw 4cil. 4LX 4MB3 Bastidores: 4LX henceforth16101-4LX henceforth16999 1996
Yamaha XJ 600 NN 34 CV, 25 kw 4cil. 4LX 4MB4 Bastidores: 4LX henceforth21951-- 1997
Yamaha XJ 600 SH Diversion 50 CV, 37 kw 4cil. 4BR 4EB1 Bastidores: 4BR henceforth20101-4BR henceforth26000 1992
Yamaha XJ 600 SH Diversion 50 CV, 37 kw 4cil. 4BR 4EB2 Bastidores: 4BR henceforth58101-- 1993
Yamaha XJ 600 SH Diversion 50 CV, 37 kw 4cil. 4BR 4EB4 Bastidores: 4BR henceforth85101-4BR henceforth92999 1994
Yamaha XJ 600 SH Diversion 50 CV, 37 kw 4cil. 4BR 4EB5 Bastidores: 4BR-157101-- 1995
Yamaha XJ 600 SH Diversion 50 CV, 37 kw 4cil. 4BR 4EB6 Bastidores: 4BR-211001-- 1996
Yamaha XJ 600 SH Diversion 50 CV, 37 kw 4cil. 4BR 4EB7 Bastidores: 4BR-229201-- 1997
Yamaha XJ 600 SN Diversion 27 CV, 20 kw 4cil. 4BR 4DS1 Bastidores: 4BR henceforth32101-4BR henceforth39000 1992
Yamaha XJ 600 SN Diversion 27 CV, 20 kw 4cil. 4BR 4DS2 Bastidores: 4BR henceforth65101-- 1993
Yamaha XJ 600 SN Diversion 34 CV, 25 kw 4cil. 4LX 4LX1 Bastidores: 4LX henceforth00101-4LX henceforth03999 1994
Yamaha XJ 600 SN Diversion 34 CV, 25 kw 4cil. 4LX 4LX2 Bastidores: 4LX henceforth08101-- 1995
Yamaha XJ 600 SN Diversion 34 CV, 25 kw 4cil. 4LX 4LX3 Bastidores: 4LX henceforth17001-- 1996
Yamaha XJ 600 SN Diversion 34 CV, 25 kw 4cil. 4LX 4LX4 Bastidores: 4LX henceforth22051-- 1997