1971 Yankee Z
The Yankee Motor Company started out in Schenectady, New York. The 1971 Yankee Z was a motorcycle that came with an air-cooled, 2-stroke engine. Eduard Gir and Manufacturing designed and produced this model. At the time, the manufacturer was based in Spain. Despite this, some components were made and assembled in the United States.
1977 Kawasaki KZ1000
Kawasaki released the KZ1000 in 1977. It was among the fastest production bikes in history. It came with a 4-cylinder in-line engine and a 5-speed transmission. This was why the KZ1000 could give off approximately 90 horsepower. At the time, the company was already working on the model that was coming to come after this one.