VALVE SPRING SET CRF450X 05-15, KIBBLEWHITE 30-31050 RACING, LIGHTWEIGHT KIT
Brand: Kibblewhite
Stock: 2
| Product Type | Valve Spring |
|---|---|
| Product Group | Cam & Valvetrain |
| Catalogue | DIRT |
| Links | |
| Chain Type |
VALVE SPRING SET CRF450X 05-15, KIBBLEWHITE 30-31050 RACING, LIGHTWEIGHT KIT
This lightweight racing spring kit is engineered for high-performance use in Honda CRF450X models from 2005 to 2017. Designed for a 0.440″ valve lift, the kit includes chrome silicon valve springs, titanium retainers, and high-tensile steel lower collars. It provides optimal seat pressure and lift characteristics for both intake and exhaust applications, supporting the demands of high-revving 4-stroke engines.
Features
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Lightweight chrome silicon racing valve springs
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Titanium retainers for reduced valvetrain mass
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High-tensile steel lower collars
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Engineered for 0.440″ valve lift compatibility
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Optimised for both intake and exhaust valves
Specifications
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Exhaust: 0.440″ valve lift, 70 lb seat pressure, 183 lb @ 0.375″ lift
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Intake: 0.440″ valve lift, 40 lb seat pressure, 130 lb @ 0.375″ lift
Cross-Reference OEM Part Numbers
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Part No. 65-709
Vehicle Fitments
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Honda CRF450X 2005–2017
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