YSS Progressive Fork Springs PR340I085-120S490X 34.0X8.5X12X490
for HONDA, KAWASAKI
Check the compatibility with your motorcycle
FIND YOUR BIKE - compatibility table
The YSS fork springs represent an ideal solution for motorcyclists looking to improve the handling and stability of their bike. With a length of 490 mm and a diameter of 34 mm, these progressive springs offer optimal elasticity, with a first spring providing a resistance of 8.5 N/mm and a second spring reaching 12.0 N/mm. This design allows for a dynamic response to various riding conditions, ensuring superior comfort and increased road grip.
The 140 mm air gap is designed to optimize compression and rebound, while the suggested viscosity of 10W ensures smooth and responsive operation, perfectly adapting to the rider's needs. These springs are engineered to deliver high performance, making every ride a more engaging and safe experience. With YSS, every curve becomes an opportunity to express your riding style.
- Length: 490 mm
- Diameter: 34 mm
- First spring resistance: 8.5 N/mm
- Second spring resistance: 12.0 N/mm
- Air gap: 140 mm
- Suggested viscosity: 10W


