Add Yahoo as a preferred source to see more of our stories on Google. Cooling fins are an iconic feature of motorcycle design. These blades made their mark early, with their parallel lines encircling ...

An image of a HD bike engine with cooling fins - DiPres/Shutterstock It's no secret that Harley-Davidson is one of the biggest-selling American-made motorcycle manufacturers. After all, since its ...

The company's Commercial Power group recently introduced a range of Vanguard V-Twin Big Block air- and liquid-cooled engines with horsepower ratings from 25 to 35. Innovations include an advanced ...

Genesis works full-time as a trainer of writers, but he's also a full-time automotive enthusiast. If it has wheels and looks pretty, he's all over it. While he loves European cars more than other cars ...