249cc, 53bhp, 139mph, Insurance group 10
Kawasaki’s KR-1S was the quickest mass-produced, 250 two-stroke ever (139mph being recorded in a 1990 speed test), being quicker than both Suzuki’s RGV and even Aprilia’s later (but RGV-powered) RS250. On the downside it came with slightly questionable reliability and handling that could tank slap you into casualty. Dangerous, but hugely addictive.
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