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
Rokon (motorcycle manufacturer) Rokon (motorcycle manufacturer) Rokon is a Rochester, New Hampshire-based motorcycle manufacturer that builds two-wheel-drive off-road motorcycles which are marketed either under the company's name, or as the "Trail Breaker". Rokon was founded in Vermont by Orla Larsen in 1963 to sell the Nethercutt Trail-Breaker, a two-wheel-drive motorcycle invented around 1958 by Charlie Fehn and built in Sylmar, California. In 1964 Rokon Inc. bought the manufacturing rights to the Trail-Breaker and marketed the bikes from their Vermont office before moving the business to New Hampshire, where they continue in business today. Rokon motorcycles use a combination of belt, chain and shaft