Why are high-speed cars prone to tire blowouts?
2 Answers
High-speed cars are prone to tire blowouts for the following reasons: 1. Low tire pressure: When tire pressure is too low, the wheel's sinking amount increases, radial deformation increases, friction between the tire surface and the ground intensifies, rolling resistance rises, and the internal stress of the tire body also increases. This causes a sharp rise in tire body temperature, softening the tire surface rubber and accelerating aging speed, leading to localized delamination of the tire body and increased tire surface wear. Under these conditions, if the car is driven at high speed, the above reactions accelerate, resulting in a tire blowout. 2. Over-inflation of tires: When tires are over-inflated and the car is driven at excessive speeds, the internal stress of the cords increases, tire temperature rises rapidly, rubber aging speeds up, and fatigue strength decreases. This can cause severe wear in the center of the tire surface, sawtooth-like wear on the sidewall treads, and cord breakage, leading to a tire blowout.
I say, the main reason tires are prone to blowouts at high speeds is because friction generates too much heat. Just think, at speeds above 100 km/h, the tires continuously rub against the road surface, producing a lot of heat that softens and weakens the rubber, just like an overheated rubber band is more likely to snap. The temperature can rise to over a hundred degrees, and if the tire pressure is too low or too high, heat builds up more easily, damaging the internal structure. Plus, the increased centrifugal force at high speeds causes greater tire deformation, and tires with wear or aging can’t handle it. For prevention, I always check the tire pressure before long trips to ensure it’s neither too low nor too high, and I also inspect the tires for cracks or uneven wear. Regular maintenance and replacing severely worn tires are key—this helps avoid the danger of blowouts at high speeds and ensures driving safety. Don’t underestimate this heat; it’s the number one cause of blowouts.
