Valve Spring Set CRF450X 05-15, Kibblewhite 30-31050 Racing, Lightweight Kit

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

Valve Spring Set CRF450X 05-15, Kibblewhite 30-31050 Racing, Lightweight Kit

Product form

This lightweight racing spring kit is engineered for high-performance use in Honda CRF450X models from 2005 to 2017. Designed for... Read more

2 in stock 1-2 business days

£202.76 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: 65-709

    • Free shipping on all orders above £75
    • No hassle returns within 30 days

    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

    Shipping & Delivery

    How long will my item take to arrive?

    Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

    Where do you ship to?

    We currently only ship orders within the UK.

    How can I track my order?

    Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

    Can I collect my order?

    Unfortunately we do not offer order collections from our fulfilment centre.

    WHY NOT CHECK OUT

    Recently viewed products

      Sign up for our newsletter

      Subscribe to our Mailing List

      Never miss any news and be the first to know about sale and offers

      © 2026 Radhouse, Powered by Shopify

        • American Express
        • Apple Pay
        • Diners Club
        • Discover
        • Google Pay
        • Maestro
        • Mastercard
        • PayPal
        • Shop Pay
        • Union Pay
        • Visa