Dark and moody: Twinline's Kawasaki S1 cafe racer

The Kawasaki S1 is rarely found in the US. Which is a pity, because this air-cooled two-stroke triple is reportedly a fun ride. Sometimes known as the ‘Mach 1’, it lived up to its name—road testers managed to wring almost 100 mph out of it in the early 70s. This dark and subtle café racer comes from Twinline Motorcycles of Seattle, who impressed us a couple of years ago with their Project Goldhead Yamaha RD350. According to builder Ian Halcott, ‘We built this bike in our spare time over the winter. I like it when I can just build …...

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