How do tubeless tyres work with the absence of tubes, and what role do tubes play in traditional tyres compared to tubeless tyres?

Tubeless tires work by creating an airtight seal between the tire and the rim, eliminating the need for an inner tube. Traditional tires rely on an inner tube to hold the air pressure and support the tire structure. Tubeless tires offer better puncture resistance and allow for lower tire pressure, improving traction and ride comfort.