How Self-inflating Tires Work

Self-inflating tires perform two crucial functions: They automatically maintain ideal tire pressure and they allow you to alter psi on the fly to adjust to changing terrain. Learn about self-inflating tires.

How the Tweel Airless Tire Works

For more than 100 years vehicles have used pneumatic or air-filled tires to move. Michelin has an alternative the Tweel Airless Tire. Learn how it could replace traditional tires.

How Tire Pressure Gauges Work

If you have a car chances are you also have a tire-pressure gauge. Learn how this pen-sized device measures air pressure and why the little stick inside doesn't just fly right out the back!

How Tires Work

Are you in the market for a new set of tires? Is all that confusing jargon the tire sales clerks or "experts" are using making your head feel like a tire spinning out of control? Find out all about car tires.

How do 30 pounds of air in your tires hold up 2 tons of car?

Learn about tires, tire pressure, and a tire's contact patch.

Why don't they use normal air in race car tires?

Race car tires don't use regular air. Find out what race car teams are using in their tires instead of air.