When one thinks of Harley-Davidson engines, thundering V-twins is what usually comes to mind. Read this article to learn the 6 unique Big Twin design generations over the history of the Harley-Davidson company and the details for the smaller motors.
The introduction of the 1986 Harley-Davidson XLH 1100 was big news for fans of the Harley Sportster. The 1986 models got their own version of the Evolution powerplant smoother and more reliable than the old design. Check out the Harley XLH 1100.