People race fast bikes. 

People race fast bikes in many ways. 


Motorcycle racing is a sport of speed and skill. 

Grand Prix racing is the top level of road racing. These bikes are prototypes. This means they are special machines made just for racing. They are not like the bikes you buy in a shop. In other races, like Superbike racing, riders use modified production bikes. These look like the bikes used on public roads.
Other riders go off-road. This is called motocross. They race on dirt, sand, or mud. 
Some races test how much a rider can last. This is called endurance racing. In sidecar racing, a rider and a passenger work as a team. 
Motorcycle racing is a thrilling sport filled with speed and skill. 

Road racing has several special classes for different machines. Grand Prix racing is the highest level of this sport. 
Some racing is all about working together as a team. 
There is a long history in many types of racing. 
Racing can also be a test of time and nature. 
Motorcycle racing is a diverse sport involving high speed and technical skill. 
Road racing occurs on paved surfaces. 
Grand Prix (GP) racing represents the premier category of road racing. 
Other road racing categories use modified production motorcycles. Superbike racing uses bikes that must maintain the same profile as roadgoing models. These machines use four-stroke engines. For twin-cylinder bikes, the displacement is between 800 cc and 1200 cc. For four-cylinder machines, it is between 750 cc and 1000 cc. Supersport racing also uses modified production bikes. However, the regulations are much tighter than Superbike rules. Supersport machines must remain largely as standard. Their engines are restricted to 250–600 cc for four-cylinder bikes and 600–750 cc for twins. Endurance racing tests the durability of both the equipment and the riders. Teams of multiple riders may change during the race. They aim to cover a set distance or a preset amount of time.
Off-road racing includes Motocross and Supercross. 

Sidecar racing adds a unique element of teamwork. 
Enduro racing focuses on long-distance off-road endurance. 
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