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The Mach Chicken: A smoking hot Kawasaki S1 flat tracker.

The Mach Chicken: A smokin’ Kawasaki S1 tracker

Flat-trackers and two-strokes are some of our favorite things. Combine the two, and we’re hooked. All the more if the two-stroke in question is the mythical Kawasaki S1—an air-cooled triple celebrated in its heyday for being a spirited ride. This 1975-model S1 belongs to Aaron Pierson, who’s done a stellar job of transforming it into…