Motorcycle racing

Motorcycle 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.
Categories
The FIM classifies motorcycle racing in the following four main categories.[1] Each category has several sub c
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.
MotoGP racing
MGrand Prix motorcycle racing refers to the premier category of motorcycle road racing. It is divided into three distinct classes:
Moto3: Introduced in 2012, motorcycles in this class are 250 cc with four-stroke engines. Previously it featured 125 cc two-stroke motorcycles. This class is also restricted by rider age, with an upper limit of 25 for newly signed riders and wild card entries and an absolute upper limit of 28 for all riders.
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; from 2011 on, only the four-stroke Moto2 machines were allowed.
MotoGP: is the current term for the highest class of GP racing. The class was contested with prototype machines with varying displacement and engine type over the years. Originally contested by large displacement four stroke machines in the early years it eventually switched to 500 cc two strokes. In 2002 990 cc four-stroke bikes were allowed to compete alongside the 500 cc two strokes and then completely replaced them in 2003. 2007 saw a reduction to 800 cc four stroke engines to unsuccessfully slow things down a bit before finally settling on 1000 cc four strokes on 2012
Grand prix motorcycles are prototype machines not based on any production motorcycle.
Superbike racing

Superbike racing is a category of motorcycle road racing that employs modified production motorcycles. Superbike racing motorcycles must have four stroke engines of between 800 cc and 1200 cc for twins, and between 750 cc and 1000 cc for four cylinder machines. The motorcycles must maintain the same profile as their roadgoing counterparts. The overall appearance, seen from the front, rear and sides, must correspond to that of the bike homologated for use on public roads even though the mechanical elements of the machine have been modified.
Supersport racing

Supersport racing is another category of motorcycle road racing that employs modified production motorcycles. To be eligible for Supersport racing, a motorcycle must have a four-stroke engine of between 400 and 600 cc for four-cylindermachines, and between 600 and 750 cc for twins, and must satisfy the FIM homologation requirements. Supersport regulations are much tighter than Superbikes. Supersport machines must remain largely as standard, while engine tuning is possible but tightly regulated.

What are the most dangerous parts of the race? 
That’s one thing about this course – it’s all so fast because you’re doing 130-mph average laps. I don’t think there’s anywhere you can say you’re 100-percent safe…. I’ve seen it where the bikes are basically scraping people. I’ve watched it as well, being close, and it’s scarier watching it than it is riding. There’s more of a festival type thing about it.

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