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

Harley-Davidson introduced the Panhead V-Twin in the fall of 1947 as a replacement for the Knucklehead engine for the upcoming 1948 model year. It would go on to power a number of iconic ...

TJ started writing for TopSpeed in 2015, but has been writing on motorcycle and automotive topics since 2009 for outlets such as eHow, eHowNow, and MotorTrend subsidiaries. He is certified to work on ...

Although Harley-Davidson is synonymous with high-quality motorcycles, the company doesn't get enough credit for its creative engine names. In fact, the manufacturer had an entire line of head-themed ...

Residing in Risca, Wales, Chris Hatton has been around two-wheelers for as long as he can remember. BMX and motocross were among his favorite pastimes back in the day, but he would also tinker with ...