
Valve Black Diamond™ by KIBBLEWHITE (Manufacturer part number: 20-2010): intake valve designed for discerning riders seeking reliability and precision at the heart of the engine. This one-piece stainless steel valve features a stellite tip and benefits from a specific nitriding treatment (depth 0.002"; surface layer 0.0002") to enhance wear resistance and reduce friction during operation.
The nitriding process applied offers better corrosion and wear resistance compared to hard chrome and electroplated nickel. The lightweight tulip profile promotes flow characteristics suitable for sportster and roadster configurations while maintaining the robustness required for the thermal and mechanical stresses of the powertrain.
Frequent applications: Harley-Davidson XL 1200 S Sport (2003), XL 1200 C Sportster Custom (2003), XLH 883 Sportster Hugger (2003).