Kibble White Black Diamond Inlet valveRef : KIBW00096A / 09260416

The Black Diamond™ valve from Kibblewhite is aimed at demanding quad riders looking for precision-engineered engine components. Designed for intake, this monoblock EV8 stainless steel valve is forged and then CNC machined to provide an optimised seat profile and controlled gas flow in the cylinder head.

• Manufacturer reference: 30-30950
• Type: Black Diamond™ intake valve (Valves + Parts)
• Head diameter: 36.00 mm
• Tulip angle: 20°
• Stem finish: Black nitride coating
• Manufacturing: CNC machining on monoblock forging — Made in USA
• Surface treatment: German process at 0.002" depth with a 0.0002" surface layer for improved wear resistance and reduced friction
• Control: Designed with finite element analysis (F.E.A.) and profiles tested on a computerised flow bench

Compact and robust, the Black Diamond™ is suitable for engines where reliability and thermal stress resistance are essential — particularly well-suited for sport quads. Compatible notably with Honda TRX 450 R/ER Sportrax (2008–2009, 450 cm³). Replace your intake valve with a part designed for precision machining and increased longevity under intensive riding conditions.