Kibble White Black Diamond Inlet valveRef : KIBW00160A / 09260253

KIBBLEWHITE Black Diamond™ Valve (ref. 80-80430): CNC machined intake engine valve, designed for quads and performance engines. Forged from a monobloc of EV8 stainless steel, it combines lightness and mechanical strength to withstand the stresses of the cylinder head and valve seats.

• Application: intake valve, Quad universe
• Material: monobloc forging in EV8 stainless steel, CNC machined
• Surface treatment: German process at 0.002" depth with a surface layer of 0.0002" — improves wear resistance and reduces friction compared to traditional treatments
• Stem: black Nitronég coating for enhanced stem durability and controlled friction behaviour
• Validated design: profiles designed using finite element analysis (F.E.A.) and tested on a computerised flow bench
• Tulip angle: 11°
• Head diameter: 38.00 mm (1.496")
• Manufactured: United States

The Black Diamond™ is aimed at discerning enthusiasts and tuners looking for a robust intake valve, with optimised profiles for precise flow calibration and a durable finish. Compatible with many 700 cc models (e.g. certain versions of Yamaha YXM/YFM 700 2025), please check compatibility with your machine before installation.