
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.
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.