Do car tires have inner tubes now?

[OReagan]

Car tires now only have outer tires without inner tubes, commonly known as tubeless tires. The edge of the outer tire is an airtight layer, installed on the hub. After inflation, the tire is pressed onto the hub by air pressure. Benefits of car tires without inner tubes: 1. Better airtightness, ensuring long-term air retention; 2. Lower operating temperature, longer service life; 3. Simple structure, lightweight, beneficial for high-speed driving. Reasons why car tires do not have inner tubes: 1. Poor heat dissipation inside inner tubes, which shortens tire lifespan; 2. The surface of tubeless tires is rubber, effectively improving sealing force on wounds; 3. Tubeless tires have high elasticity and wear resistance, with good adhesion.