Rikuo Motorcycle of the Harley-Davidson, started production in 1929. In 1931 Dabittoson Harley Motorcycle Co., Ltd. was established in Japan. Dabittoson started domestic production of the Harley-Davidson Road King Motorcycle. The 4-cycle, 1200 cc, side-valve V-twin engine produces 28 horsepower for a top speed of 97 km per hour. The Road King motorcycle was improved and produced by Lin Ritsukawa, and Tsui Meguro under the Tokyu Kogyo Kurogane Company during World War II. This included the Type 97 military motorcycle which was often produced with a sidecar, called they Harley-Davidson, through the efforts of Alfred Rich Child, shipped tooling and personnel to
American Historic Racing Motorcycle Association American Historic Racing Motorcycle Association The American Historic Racing Motorcycle Association (AHRMA) is a vintage motorcycle racing origination that puts on mostly motorcross races, but also holds road racing, dirt flat track, and trials events. The AHRMA was formed in 1984 by Robert Iannucci and Jeffrey Elghanayan as a private business. In 1989 it was reorganized as a member owned non profit organization. During the 70s and 80s groups of riders began emerging around the nation organizing vintage motorcycle racing events. This started primarily with vintage roadracing clubs who were then joined by motocross, trials, dirt track and concours enthusiasts.