only other gas i've ever heard of being used is nitrogen.
It's nitrogen.
nitrogen
Nitrogen
Nitrogen
nitrogen
Nitrogen
Nitrogen, because it is an inert gas.
Nitrogen and oxygen = Air
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.
Nitrogen It's volume changes less than air as the tires temperature changes.
nitrogeon is used to inflate race car tyres due to the consistent tyre pressure throughout different tempertures.
Treadless racing tires called are slicks.