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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 use a two-stroke engine while Moto2 and MotoGP uses four-stroke engines. In 2010 the 250cc 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...

Surfing is a surface water sport. Definition: the sport or pastime being carried to the shore on the crest large waves while standing or lying on some sort board (i.e. longboard, short board, boogie board, wake board). Two major subdivisions within stand-up surfing are longboarding and shortboarding, reflecting differences in surfboard design including surfboard length, and riding style...