To gain traction before taking off.
Treadless racing tires called are slicks.
The Goodyear website would be a great place to buy good racing tires, as their tires are the official tires of NASCAR. Michelin and Bridgestone tires are also other possible alternatives to consider when buying decent racing tires. For custom tires, America's Tire would be a great company to search to buy racing tires.
softer the compund of the tire, the more grip it has, down side is they don't last long, top fuel dragster tires last only 1.25 miles
The F1 tires used in Formula 1 racing are approximately 305mm wide.
Nitrogen
NO
Nitrogen
There are different types of tires depending on what kind of racing they're doing. But pretty much all racing tires tries to be grippier than regular tires. This usually means that they wear out faster, and create more road noise than regular tires, which no one really cares about if can win them the race.
There are several brands of tires that are top quality. Good Year, Michelin and Cooper are three that are comparable. The best would depend of the type of vehicle and weather conditions that the person purchasing will encounter.
nitrogen
Nitrogen
They are wide to gain maximum traction and bald because they are only used on dry tracks. In wet weather, racing tires with treads are used.