The Knucklehead, Panhead, and Shovelhead are all important parts of Harley-Davidson history, each preceding the one before it ...
Harley-Davidson officially began in 1903 with the Model 1, which used a 24.74 cubic-inch inlet-over-exhaust single-cylinder engine. Down the line, the company engineered the Panhead, Knucklehead ...
As one of the oldest surviving Harley-Davidson models, this motorcycle is a relic ... At its heart was the 74 cubic-inch Panhead engine, delivering a combination of power and reliability that ...