Chuo Kogyo Co., Ltd, Kamikaigawa-Cho, Hamamatsu City, 1954-55
In 1954 Chuo Kogyo produced a 90cc single cylinder 4 stroke machine called the Central (セントラル号). The 'Century of Japanese Motorcycles' lists them as being a one year only company, however it appears they at least announced a 125cc model for 1955 called the Central King (セ ン ト ラ ル ・ キ ン グ号). Per the specifications sheet, the frame appears to be a rear mono-shock. They used someone elses engine, but at this time the make is unknown.