Motocross

thumb|A motocross rider coming off a jump thumb|Motocross championship Motocross (abbr. MX) is a form of off-road motorcycle racing held on enclosed off-road circuits. The sport evolved from motorcycle trials competitions held in the United Kingdom.

thumb|1956 Maico 250cc

annual team motocross race

thumb|right|350px|The Holeshot of a sidecarcross race

Thumpstar is a pit bike manufacturer that was founded in Australia in 2004 by Timothy Hunter, a motor-cycle dealer and racer.

2010 film by Willem Baptist