What are the causes of tire blowouts?

[StAndres]

Tire blowouts can be caused by: 1. Tire leakage, where the tire is punctured by a nail or other sharp object but not completely pierced, leading to air leakage and eventually a blowout; 2. Excessive tire pressure, as high-speed driving increases tire temperature and pressure, causing deformation and reduced elasticity of the tire body, along with increased dynamic load on the car, which can lead to internal cracks or blowouts upon impact—this is why blowout accidents are more common in summer; 3. Insufficient tire pressure, which during high-speed driving can cause harmonic vibration of the tire body, generating significant resonant forces that may lead to a blowout if the tire is not strong enough or already damaged; 4. Worn-out tires, where prolonged use results in severe wear, loss of tread pattern (or very low tread), and thinning of the sidewalls, creating what is commonly called a 'bald tire' or uneven weak spots that cannot withstand the high pressure and temperature of high-speed driving, leading to a blowout.