Cycling, or bicycling, is a form of transport, recreation and sport. As a sport it has many specialties such as racing, mountain biking, road, track, touring, and freestyle. Endurance and speed play a major role in most of the disciplines.<br /><br /><br />See more extreme sports videos at AdventureImagery.com, a footage library specializing in adventure and extreme sports stock footage licensed royalty free for use in your own productions.<br /><br /><br /><img src="http://ll.broadbandsports.com/images/11618_mountain_biking_bicyclingsm.mov.jpg" alt="mountain biking stock footage - AdventureImagery.com" title="mountain biking stock footage - AdventureImagery.com" width="150" height="90" alt="mountain biking stock footage - AdventureImagery.com"/>
