YSS SUSPENSION fork valve 425 7890694

Outer diameter 42.5mm

YSS fork valving turns a conventional fork into a controlled feel with improved road contact. CAD developed and hardened from extremely lightweight 6061 T6 aluminum with 65 Rockwell.

Finely adjustable and usable for almost all fork diameters.

Thanks to a sophisticated system of holes in the valve, the oil flow in the fork changes so that contact and feedback on the road is significantly more direct.

This gives the driver safety and a feeling for the road surface.

Application area: on, off-road, racing and touring applications.

Fork valves are preset for the respective fork diameter.

Subsequent fine adjustment can be made by the amount of oil or other oil viscosity.

Operating principle:

The YSS fork valve is inserted between the piston rod and the fork spring. It is important to know in advance the internal diameter of the dip tube and the internal diameter of the stem.

Fine adjustment of the fork valve is possible with little effort after installation:

The fork bridge should be loosened, the oil drawn from the fork and the fork valve should be lifted.

The adjustment screw can be tightened or loosened in 2-turn steps using an Allen key.

Consider first turning the top screw and then tightening it with the bottom stop nut.


APPLICATIONS OF THIS PRODUCT:
According to the data provided by the manufacturer, this article is compatible with the following brands, models and years:
HARLEY DAVIDSON VRSCA 1130 V-ROD 117 CV, 86 KW 2CIL. HAZ VR1 BASTIDORES: --- 2002-2006
COMPATIBLE WITHHARLEY DAVIDSON VRSCA 1130 V-ROD 99 CV, 73 KW 2CIL. HAA VR1 BASTIDORES: --- 2002-2005
COMPATIBLE WITHHARLEY DAVIDSON VRSCAW 1130 V-ROD 117 CV, 86 KW 2CIL. HFZ VR1 BASTIDORES: --- 2007
COMPATIBLE WITHHARLEY DAVIDSON VRSCB 1130 V-ROD 117 CV, 86 KW 2CIL. HBZ VR1 BASTIDORES: --- 2004-2005
COMPATIBLE WITHHARLEY DAVIDSON VRSCB 1130 V-ROD 99 CV, 73 KW 2CIL. HBA VR1 BASTIDORES: --- 2004-2005
COMPATIBLE WITHHARLEY DAVIDSON VRSCD 1130 NIGHT ROD 121 CV, 89 KW 2CIL. HDZ VR1 BASTIDORES: --- 2006-2007
COMPATIBLE WITHHARLEY DAVIDSON VRSCDX 1130 NIGHT ROD SPECIAL 121 CV, 89 KW 2CIL. HHZ VR1 BASTIDORES: --- 2007
COMPATIBLE WITHHARLEY DAVIDSON VRSCR 1130 STREET-ROD 121 CV, 89 KW 2CIL. HCZ VR2 BASTIDORES: --- 2006-2007