The Knucklehead, Panhead, and Shovelhead are all important parts of Harley-Davidson history, each preceding the one before it ...

A steady evolution of engines litter the past along ... With the Knucklehead having reached its limits, Harley-Davidson quickly put together its replacement in time for the 1948 model year.

A big part of why Harley-Davidson has built a reputation for extremely powerful motorcycles is its Screamin’ Eagle line of engines. In 2003, Harley Davidson announced the release of the newest ...

The Federal Trade Commission previously also took on the motorcycle giant for the warranty condition that non-Harley-Davidson parts may void the warranty. CHICAGO (CN) — Harley-Davidson customers ...

The 45 degree, twin cylinder, single crank-pin, air-cooled engine has been a hallmark for as long as any of us can remember. Harley-Davidson has long pioneered... well, nothing new to be honest.