The Evolution of Harley-Davidson

In 1919, the company introduced a 37-cubic inch opposed W, or Sport model, which enjoyed great popularity overseas.
(c) Harley-Davidson; Courtesy Harley-Davidson Motor Co. Archives

Production
In 1919, the company introduced a 37-cubic inch opposed W, or Sport model, which enjoyed great popularity overseas. Unique not only for its cylinder configuration, which was directly opposed and flat, the Sport also earned a reputation for being uncommonly quiet.

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