Genuine KPMI Inlet Valve Guide suitable for 850cc Norton Commando models.
Made from C63000 nickel bronze because of its ideal characteristics for the application. The 5 percent nickel content produces superior resistance to wear, and the approximately 80 percent copper content delivers outstanding heat conductivity. KPMI® guide profiles are designed to have minimal effect on the airstream while maintaining critical cross sectional thickness in high temperature areas, which promotes high performance and endurance.
MADE IN USA
(By Kibblewhite Precision Machining Inc, the manufacturers of Black Diamond valves).
For specifications see the images above.