INTRODUCTION: Motorcycle racing, also called moto racing and bike racing, is a motorcycle sport of racing motorcycles. Major genres include 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: Road racing is the racing of motorcycles on tarmac. Races can take place either on purpose-built racing circuits or on closed public roads. MOTORCYCLE GRAND PRIX: Grand prix motorcycles are prototype machines not based on any production motorcycle. Grand Prix motorcycle racing refers to the premier category of motorcycle road racing. It is divided into three distinct classes: MotoGP � 1000 cc four-stroke. Moto2 � Introduced by Dorna Sports, the commercial rights holder of the competition, in 2010 as a 600 cc four-stroke class. Prior to that season, the intermediate class was 250 cc with two-stroke engines. Moto2 races in the 2010 season allowed both engine types; fro...