2017 KTM 690 DUKE

15,649 original miles, good overall shape.  Aftermarket parts include engine guards, fender eliminator, and bar end mirrors.  Two decades ago, the original Duke was nothing short of revolutionary. KTM's first single-cylinder street bike grew into a cult classic, adding extreme fun to a raw and radical concept. In 2016, the fully revised 690 DUKE stays faithful to its ancestor's ways, but adds future-proof refinements: impressive smoothness, sophisticated electronics, improved ergonomics and a good old power boost over last year's model. This firmly cements the world's strongest single-cylinder production motorcycle at the cutting edge of engineering. Speaking of which: carving corners has never been more fun, thanks to its revised fork offset.