Kibble White 09260440 Valve guideHONDA 250 CRF 250 R (ME10) - 2008 - 2009Ref : KIBW00026A / 09260440

KIBBLEWHITE Valve Guide (Manufacturer part number: 30-31180)

Designed for the exhaust of motocross engines, this Kibblewhite valve guide is machined from C630 bronze, a nickel-aluminium alloy with a high copper content (approximately 80% copper, ~5% nickel). This material offers excellent thermal conductivity and good wear resistance in areas subjected to high temperatures, making it a suitable choice for cylinder head rebuilds and competition/leisure maintenance.

• Application: exhaust
• Outer diameter: 0.3965 in (≈ 10.07 mm)
• Inner diameter: 0.1760 in (≈ 4.47 mm)
• Material: C630 Bronze (nickel-aluminium)
• Origin: made in the United States

The internal profiles are designed to limit the impact on gas flow while maintaining critical thickness in hot areas, contributing to the longevity of the valve seat and ensuring good valve stem guidance. Ideal for preparations and refurbishments of cylinder heads on trails and motocross bikes.

Common compatibilities: HONDA CRF 250 R (ME10) 2008-2009. Always check the dimensions and part number before installation to ensure fit and safety on the track.