Motocross races. A number of other types of motorcycle sport have been derived from Motocross. Freestyle Motocross (FMX), a relatively new variation of supercross, started out by the South African champion, Marco Urzi, does not involve racing and instead it concentrates on performing acrobatic stunts while jumping motocross bikes. The winner is chosen by a group of judges. The riders are scored on style, level of trick difficulty, best use of the course, and, frequently, crowd reactions. FMX was introduced to the X Games and mainstream audiences in 1999. Supermoto uses motocross bikes converted for racing on tracks consisting of three
Motorcycle racing many sub-categories including: Motocross (or MX) is the direct equivalent of road racing, but off-road, a number of bikes racing on a closed circuit. Motocross circuits are constructed on a variety of non-tarmac surfaces such as dirt, sand, mud, grass, etc., and tend to incorporate elevation changes either natural or artificial. Advances in motorcycle technology, especially suspension, have led to the predominance of circuits with added "jumps" on which bikes can get airborne. Motocross has another noticeable difference from road racing, in that starts are done en masse, with the riders alongside each other. Up to 40 riders race into