Harley-Davidson Model W

The Harley-Davidson Model W, also called the Sport Twin, was a middleweight motorcycle that Harley-Davidson built from 1919 to 1923. It was unusual for the company because it used a flat-twin engine with the cylinders in line with the frame, together with a trailing-link fork. The company meant it as an entry-level machine for new riders, with a smoother engine, a lower centre of gravity and a cleaner layout, since the transmission and clutch shared the engine crankcase. It set speed records on runs from New York City to Chicago and from the Canadian border to the Mexican border, but slow home sales ended production after four years.