Kibble White Black Diamond Exhaust valveYAMAHA 1000 YZF-R1 (RN19) - 2007 - 2008Ref : KIBW00067A / 09263270

The Black Diamond™ Valve from KIBBLEWHITE is an exhaust valve designed for track and sport preparations. CNC machined from a monobloc forging in EV8 stainless steel, it combines lightness and robustness while featuring optimised profiles for better gas flow, designed through finite element analysis (F.E.A.) and validated on a computerised flow bench.

• Application: Exhaust, Sport/Racing universe
• Material: EV8 stainless steel, monobloc forging
• Surface treatment: German process at .002 depth with a .0002 surface layer, offering superior wear resistance and reduced friction compared to chrome or electrolytic nickel plating (according to manufacturer)
• Stem: black nitrided coating
• Tulip angle: 15°
• Head diameter: 0.989" / 25.00 mm
• Manufacturing: United States

Designed for demanding preparations, this Black Diamond™ valve is aimed at motorcyclists looking for a high-quality head component, particularly adaptable to the Yamaha YZF-R1 RN19 (2007-2008). Manufacturer reference: 80-80666.