Motorcycle racing (also called moto racing and motorbike racing) is the motorcycle sport of racing motorcycles. Major varieties include motorcycle road racing and off-road racing, both either on circuits or open courses, and track racing. Other categories include hill climbs, drag racing and land speed record trials.
Road racing is a form of motorcycle racing held on paved road surfaces. The races can be held either on a purpose-built closed circuit or on a street circuit utilizing temporarily closed public roads.
Historically, "road racing" meant a course on closed public roads. This was once commonplace but currently only a few such circuits have survived, mostly in Europe. Races take place on public roads which have been temporarily closed to the public by legal orders from the local legislature. Two championships exist, the first is the International Road Racing Championship[clarification needed], the other is the Duke Road Racing Rankings. The latter accounts for the majority of road races that take place each season, with an award for the highest placed rider. Prominent road races include the Isle of Man TT, North West 200, and Ulster Grand Prix on long circuits. Ireland has many road racing circuits still in use. Other countries with road races are the Netherlands, Finland, Spain, Belgium, Germany, Great Britain (Oliver's Mount), the Czech Republic, Ukraine, New Zealand, Indonesia and Macau.
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 the first corner, and sometimes there is a separate award for the first rider through (see holeshot). The winner is the first rider across the finish line, generally after a given amount of time or laps or a combination.
Motocross has a plethora of classes based upon machine displacement (ranging from 50cc 2-stroke youth machines up to 250cc two-stroke and 450cc four-stroke), age of competitor, ability of competitor, sidecars, quads/ATVs, and machine age (classic for pre-1965/67, Twinshock for bikes with two shock absorbers, etc.).
Enduro is a form of off-road motorcycle sport that primarily focuses on the endurance of the competitor. In the most traditional sense ("Time Card Enduros"), competitors complete a 10+ mile lap, of predominately off-road going, often through forestry. The lap is made up of different stages, each with a target time to complete that stage in exactly, there are penalties for being early and late, thus the goal is to be exactly "on time". Some stages are deliberately "tight", others are lax allowing the competitor to recuperate. There are also a variety of special tests, on variety of terrain to further aid classification, these are speed stages where the fastest time is desired. A normal event lasts for 3 to 4 hours, although longer events are not uncommon. Some events, particularly national and world championship events take place over several days and require maintenance work to be carried out within a limited time window or while the race is running. To prevent circumvention of the maintenance restrictions, the motorcycles are kept overnight in secure storage.
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