SPRING VALVE KIT, XR500/600, KIBBLEWHITE 30-4081, 460 LIFT
SPRING VALVE KIT, XR500/600, KIBBLEWHITE 30-4081, 460 LIFT
This high-performance valve spring-only kit is designed for various Honda® motorcycle applications, supporting up to 0.465" valve lift. Engineered using advanced design and simulation software, the springs are manufactured from premium chrome-silicon wire, providing excellent fatigue life, stress tolerance, and consistent performance. This kit is suitable for both intake and exhaust applications and is compatible with a wide range of off-road and dual-sport models.
Features
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Designed for high-performance applications with 0.465" valve lift capacity
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Manufactured from Super-Clean Chrome-Silicon wire from Kobe, Japan
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Engineered using proprietary design and simulation software
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Undergoes heat treatment, stress relief, and shot peening for durability
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Manufactured in ISO-certified U.S. facilities
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Suitable for both intake and exhaust valves
Specifications
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Valve Lift: 0.465"
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Installed Height: 1.210"
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Seat Pressure: 75#
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Open Pressure: 210# @ 0.465" lift
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Type: Intake / Exhaust
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Material: Various
Cross-Reference OEM Part Numbers
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Kibblewhite Part No. 30-4081
Vehicle Fitments
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Honda GB500 1989–1990
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Honda XR500R 1983–1984
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Honda XL600R 1983–1987
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Honda XR600R 1985–2000
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Honda XR650L 1993–2018