Suzuki's RE5: The Rotary-Engined Motorcycle Born From an 800,000km Endurance Test

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MotoMegane profiled Suzuki's RE5, Japan's only mass-produced rotary-engine motorcycle, launched in November 1974. Developed over roughly four years after licensing Wankel technology from NSU, the bike underwent a cumulative 800,000km of dynamometer endurance testing plus about 500,000km of on-road testing. Its 497cc engine made 62hp, and only about 6,000 units were built.