VALVE SPRING SET CRF450X 05-15, KIBBLEWHITE 30-31050 RACING, LIGHTWEIGHT KIT

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VALVE SPRING SET CRF450X 05-15, KIBBLEWHITE 30-31050 RACING, LIGHTWEIGHT KIT

VALVE SPRING SET CRF450X 05-15, KIBBLEWHITE 30-31050 RACING, LIGHTWEIGHT KIT

Original price was: $205.60.Current price is: $146.05.

22 in stock

SKU: 65-709 Category:

Description

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

  • Lightweight chrome silicon racing valve springs

  • Titanium retainers for reduced valvetrain mass

  • High-tensile steel lower collars

  • Engineered for 0.440″ valve lift compatibility

  • Optimised for both intake and exhaust valves

Specifications

  • Exhaust: 0.440″ valve lift, 70 lb seat pressure, 183 lb @ 0.375″ lift

  • Intake: 0.440″ valve lift, 40 lb seat pressure, 130 lb @ 0.375″ lift

Cross-Reference OEM Part Numbers

  • Part No. 65-709

Vehicle Fitments

  • Honda CRF450X 2005–2017

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