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Are Run-Flat Tires Really Immune to Blowouts?

3 Answers

VanMiguel

08/31/25 3:44am

Run-flat tires do not mean they are immune to blowouts. Instead, they allow the vehicle to continue driving for a certain distance even after a tire blowout or air leakage when the tire pressure is insufficient, giving you time to safely reach the nearest auto repair shop. Whether it's regular tires or run-flat tires, proper tire maintenance is essential during daily use. Here's a detailed explanation: 1. Generally, run-flat tires are marked with RSC or SSR on the sidewalls, and their price is significantly higher than that of regular tires. The reason run-flat tires can continue driving after a blowout is due to their reinforced sidewalls. Even without air pressure, they won't collapse and can support the vehicle to keep moving. 2. After a regular tire blowout, the car usually needs to stop for a tire change or call for a tow truck; otherwise, it may lead to an accident. However, if the car is equipped with run-flat tires, it can be driven to a safe location for further action, ensuring safety. Therefore, run-flat tires primarily prevent accidents following a tire blowout. Moreover, 'run-flat tire' is not their official name; their true name is 'tire pressure monitoring system (TPMS) tire' or 'self-supporting tire.'

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AriannaFitz

09/12/25 7:04am

As a dad with 20 years of driving experience, let me talk about the real situation with run-flat tires. These things should actually be called 'tire pressure monitoring system tires,' and the key is their particularly thick sidewalls. Once, I had a screw puncture the side of my tire—a regular tire would have blown out immediately, but the run-flat tire allowed me to limp to the repair shop. However, it's not invincible! If you're speeding at 120 when a tire blows, you can still lose control. Also, keep in mind that these tires shouldn't be driven more than 80 kilometers when they're leaking air, or you could ruin the wheel rim. Remember, as long as all four wheels are on the ground, no tire can protect against falling steel bars.

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EthanDella

10/26/25 7:53am

I'm a mechanic at an auto repair shop, and every day I see customers treating run-flat tires like they're invincible. These tires have rubber layers as thick as down jackets inside, with steel-reinforced support layers in the carcass. But last month, a BMW X5 had a 15cm gash in its sidewall and went flat instantly. The worst part is that driving on a deflated run-flat generates extreme heat, with aluminum rims reaching 80°C in no time. If a tire shop owner says 'just keep driving, no problem,' I suggest you walk away immediately. Our shop wall has a thermal imaging chart showing temperature changes after a run-flat loses pressure over 50km – the rims glow red like roasted sweet potatoes.

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