Progressive fork spring YSS 34.0X5.5X7.5X585 for VN800

YSS Progressive Fork Springs – enhanced control and riding comfort

YSS progressive fork springs significantly improve front fork response while increasing stability and riding comfort. Whether for everyday riding, touring, or sporty use, they provide better feedback and control.

High-quality silicon spring steel

Manufactured from premium silicon spring steel, these springs offer a more active response with a slimmer design. The reduced wire diameter allows improved sensitivity without compromising strength. Undesired torsion is effectively prevented, ensuring precise and controlled compression behavior.

Optimized surface finish for maximum performance

The springs are fully polished and precisely ground at both ends. This minimizes noise and friction while improving oil flow inside the fork. The result is smoother damping characteristics throughout the entire suspension travel and a more refined riding experience.

Product features

• Progressive spring rate – soft initial response, firm under load
• Improved riding stability and reduced brake dive
• High-grade silicon spring steel – active, slim, torsion-resistant
• Polished surface and precision-ground ends
• Manufactured by YSS Suspension – known for durable, high-performance suspension components
• Easy upgrade – suitable for many motorcycle models

Scope of delivery

• 2 fork springs (for complete fork conversion)

Kawasaki VN 800 Classic    B1    VN800B    VN800B-000001    VN800B-005000    1996    2    55/50/34 PS, 40,5/37/25 kw

Kawasaki VN 800 Classic    B10P    VN800ABA    VN800ABA-109001    VN800ABA-114000    2005    2    34 PS, 25 kw

Kawasaki VN 800 Classic    B10P    VN800ABA    VN800ABA-109001    VN800ABA-114000    2005    2    55 PS, 40,5 kw

Kawasaki VN 800 Classic    B10P    VN800ABA    VN800ABA-109001    VN800ABA-114000    2006    2    34 PS, 25 kw

Kawasaki VN 800 Classic    B10P    VN800ABA    VN800ABA-109001    VN800ABA-114000    2006    2    55 PS, 40,5 kw

Kawasaki VN 800 Classic    B2    VN800B    VN800B-005001    VN800B-008000    1997    2    55/50/34 PS, 40,5/37/25 kw

Kawasaki VN 800 Classic    B3    VN800B    VN800B-008001    -    1998    2    55/50/34 PS, 40,5/37/25 kw

Kawasaki VN 800 Classic    B4    VN800ABA    VN800ABA-075001    VN800ABA-083000    1999    2    55/50/34 PS, 40,5/37/25 kw

Kawasaki VN 800 Classic    B5    VN800ABA    VN800ABA-083001    VN800ABA-089000    2000    2    55/50/34 PS, 40,5/37/25 kw

Kawasaki VN 800 Classic    B6    VN800ABA    VN800ABA-089001    VN800ABA-095000    2001    2    55/50/34 PS, 40,5/37/25 kw

Kawasaki VN 800 Classic    B7    VN800ABA    VN800ABA-095001    VN800ABA-099000    2002    2    55/50/34 PS, 40,5/37/25 kw

Kawasaki VN 800 Classic    B8    VN800ABA    VN800ABA-099001    VN800ABA-103000    2003    2    34 PS, 25 kw

Kawasaki VN 800 Classic    B8    VN800ABA    VN800ABA-099001    VN800ABA-103000    2003    2    55 PS, 40,5 kw

Kawasaki VN 800 Classic    B9P    VN800ABA    VN800ABA-103001    VN800ABA-109000    2004    2    34 PS, 25 kw

Kawasaki VN 800 Classic    B9P    VN800ABA    VN800ABA-103001    VN800ABA-109000    2004    2    55 PS, 40,5 kw

Technical Data:
Spring type: Progressive
Length: 585 mm
Diameter 1: 34.0 mm
Spring rate 1: 5.5 N/mm
Spring rate 2: 7.5 N/mm
Air chamber left: 284 mm
Air chamber right: 284 mm
Recommended viscosity: 10W
Manufacturer: YSS