There is plenty of mud-slinging in this World Motocross Championship series review, which covers all rounds from the year.

See Stefan Everts, Sebastien Tortelli and Tanel Leok compete in the MX1 Class.

There is on-bike footage, full commentary and interviews with championship riders. Watch in awe as these top riders compete for the championship title in more than three hours of non-stop entertainment!

So sit back and relax as the MX competitors take incredible risks for the glory and the entertainment of dirt bike fans.