The Indianapolis Grand Prix is a motorcycling event held at the Indianapolis Motor Speedway in Speedway, Indiana, United States as part of the Grand Prix motorcycle racing season. Its first edition took place on September 14, 2008 and was sponsored by Red Bull. The race was held again on August 30, 2009 and was sponsored by Red Bull again. It is the only full-card (MotoGP, Moto2, Moto3) United States round on the MotoGP calendar, as the Laguna Seca round is MotoGP only. When Circuit of the Americas near Austin, Texas opens for the 2013 season, that will also be a full-card race. The layout is similar to the setup used for the Formula One United States Grand Prix between 2000 and 2007, but not identical. It has been reversed to a counterclockwise layout, with a new complex of corners just after the start-finish line, inside Turn 1 of the oval. This means that the bikes do not use any of the banked oval corners. The double-hairpin at the Hulman Straight was replaced with the traditional esses.
Road Racing World Championship Grand Prix is the premier championship of motorcycle road racing currently divided into three distinct classes: 125cc, Moto2 and MotoGP. The 125cc class uses a two-stroke engine while Moto2 and MotoGP use four-stroke engines. In 2010 the 250cc two-stroke was replaced by the new Moto2 600cc four-stroke class. Grand Prix motorcycles are purpose-built racing machines that are neither available for purchase by the general public nor can be ridden legally on public roads. This contrasts with the various production categories of racing, such as the Superbike World Championship, that feature modified versions of road-going motorcycles available to the public.
A Road Racing World Championship Grand Prix was first organized by the Fédération Internationale de Motocyclisme (FIM) in 1949. The commercial rights are owned by Dorna Sports. Teams are represented by the International Road Racing Teams Association (IRTA) and manufacturers by the Motorcycle Sport Manufacturers Association (MSMA). Rules and changes to regulations are decided between the four entities, with Dorna casting a tie-breaking vote. In cases of technical modifications, the MSMA can unilaterally enact or veto changes by unanimous vote among its members. These 4 entities compose the Grand Prix Commission.
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