YSS PR315I060-090S400X 31.5X6X9X400 Progressive Fork Springs
for KAWASAKI ZR ZEPHYR 550
Check the compatibility with your motorcycle
FIND YOUR BIKE - compatibility table
-9%
Special Price €113.00 Regular Price €124.00
The YSS fork springs are designed to provide a superior riding experience, thanks to their progressive structure that ensures optimal stress management. With a length of 400 mm and a diameter of 31.5 mm, these springs fit perfectly into various motorcycle configurations, ensuring an ideal balance between comfort and performance.
The first spring has a stiffness of 6.0 N/mm, while the second spring reaches a stiffness of 9.0 N/mm, allowing for a dynamic and responsive reaction to changes in terrain. The 140 mm air gap contributes to greater sensitivity during compression phases, improving the stability and maneuverability of the motorcycle.
To optimize performance, it is recommended to use oil with a viscosity of 7.5W, which promotes smooth operation and an immediate response to stresses. YSS springs are the ideal choice for motorcyclists looking to enhance their riding experience, ensuring a perfect balance between stiffness and comfort, thus adapting to various usage conditions.
- Length: 400 mm
- Diameter: 31.5 mm
- First spring stiffness: 6.0 N/mm
- Second spring stiffness: 9.0 N/mm
- Air gap: 140 mm
- Recommended oil viscosity: 7.5W
