How long can you drive with a punctured run-flat tire?
2 Answers
According to the characteristics of run-flat tires, even when punctured, they can maintain a speed of 80 km/h and allow driving for about an hour, covering nearly 80 kilometers. This helps prevent drivers from getting stranded on remote roads. However, it's important to note that if the run-flat tire is severely damaged, safety precautions should be taken while driving. Here is more information about run-flat tires: 1. The technical name for run-flat tires is "Tire Pressure Monitoring System (TPMS)" tires, abbreviated as RSC. The biggest advantage of run-flat tires is that in the event of a tire leak, even if the air pressure inside the tire is completely lost, the vehicle can continue to drive at a speed of 80 km/h without the immediate need to replace the tire. 2. Although run-flat tires can reduce the impact of a puncture on driving, if the tire pressure is too high or under extreme conditions, a puncture can still occur. The difference is that the vehicle won't break down immediately after a puncture, but it will require speed restrictions, and the remaining drivable distance is very limited.
I've been driving a car with run-flat tires for many years and have personally experienced situations where the tire was punctured but could still be driven. According to the manufacturer's instructions, it can generally last for about 80 kilometers, depending on the tire type, such as Michelin or Bridgestone's recommendations. That time, I drove 60 kilometers to the repair shop, keeping the speed below 80 km/h the whole time, because driving too fast could overheat the tire, damaging the rim or even causing a blowout. Why can it last so long? Run-flat tires have reinforced sidewalls, allowing them to support the car's weight even when deflated, whereas regular tires would immediately fail. However, don’t take it lightly—overloading reduces the distance, and on wet roads, you should stop more quickly. I recommend driving slowly to a repair point as soon as a puncture occurs and not delaying, otherwise, the cost of replacing a new tire could double, along with increased safety risks. Regularly checking tire pressure during maintenance can reduce such incidents.
