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course 
The length of a motorcycle race is between 3.5 and 10 km and the starting line is a straight line of not less than 250 m.
track
Driving surface of a motorcycling track; its minimum width is 10 m.
stands
Structure with tiered seats that is often partially covered; it is for spectators attending sporting events.
pits
Spaces reserved for each team where the drivers stop during the race to refuel and change their tires.
