Progressive front fork springs YSS - Honda XL 500 S ('79-'82) - YSS

Progressive fork spring set - YSS for Honda XL 500 S (1979-1982).

Product description:

- YSS internal fork spring set is stiffer than the original;
- The YSS progressive wound fork springs are made from high-quality steel;
- This allows for a reduction in wire thickness, making the spring more responsive;
- To improve oil flow in the fork, the springs are fully polished and ground at the top and bottom;
- This also reduces noise in the fork;
- The delivery package includes 2 springs for a complete fork conversion;

Technical specifications:
- Spring model: progressive;
- Length: 565 mm;
- Diameter: 25.5 mm;
- Spring rate 1: 3.8 N/mm;
- Spring rate 2: 5.2 N/mm;
- Left air chamber: 180 mm;
- Right air chamber: 180 mm;
- Recommended viscosity: 10W.

The complete application list can be found below.