11. Yamaha XS650
The XS650 was a mid-size motorcycle manufactured by the Yamaha Motor Company. Its standard model was introduced in 1968 and produced through 1979. While the “Special” cruiser model was introduced in 1978 and production ran through 1985. The XS650 began with the 1955 Hosk single overhead cam 500 twin. After 10 years of production of the 500 twin, Hosk engineers designed a 650 cc twin. Later, the company was acquired by the Showa Corporation, which was later acquired by Yamaha with Hosk’s early designs of 650 cc twin. It was produced until 1985 with the last model year being 1983 in the US, with Canada, Europe, and other markets continuing into 1984 and 1985.