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It was the YA-1, a 125cc, 2-stroke, single cylinder, streetbike, nicknamed ‘Aka-tombo’, meaning red dragonfly after its maroon and ivory two-tone colour scheme, at a time when black was virtually the only colour used for motorcycles.
History: It was only two months after the start of the YA-1 development project in March of 1954 that the first prototype was completed. By that summer, nine more prototypes were completed and tough testing, which included a 10,000 km endurance test had been conducted. By October of 1954, official approval had been won for the finalized model. The progress achieved in this development period was truly unprecedented in the motorcycle industry..
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