Few sounds in the motorcycle world are as iconic as the specific rumble of a big V-twin Harley-Davidson, but what about their engines makes such a unique sound?

But current engines are so predictable. Harley got surprisingly creative in its choice of engine notes, tying in over a century of history, the company. Other engine sounds available include the 1974 ...

Harley-Davidson has shoehorned the High Output 103 Twin Cam engine into its fleet of Softail and Dynas, but some countries, such as Australia, will have to wait for the more powerful Dyna. READ ABOUT ...