Aluminum, copper & brass. The most noble materials and best color combination for many motorcycles. Here a fine example of precision machined sheets of aluminum, copper and brass stacked in an oil cap in 2 versions to fit Harley-Davidson stock oil tanks from 65 to 99 and from 00 to 08.
This design should now be declined on grips, pegs, controls, etc to give you a ready-made theme for your next custom project. Choppers Inc.