1971 Yankee Z
The Yankee Motor Company got its start in Schenectady, New York. The 1971 Yankee Z came with a 2-stroke air-cooled engine. Ossa Manufacturing and Eduard Gir worked together to design and produce this vehicle. The company had its HQ in Barcelona, Spain back then. Several parts had been made and assembled in the United States, however.

1971 Yankee Z
1977 Kawasaki KZ1000
In 1977, Kawasaki released the KZ1000. After this happened, it went on to be one of the speediest production bikes on the market. It came with an in-line 4-cylinder nine and a 5-speed transmission. With such a combination, this configuration resulted in 90 horsepower. At the time, Kawasaki had already been working on what was next after this model.

1977 Kawasaki KZ1000