How many kilometers can a run-flat tire be driven after a puncture?
2 Answers
Run-flat tires can continue to be driven at a speed of 80 km/h for 50 to 250 kilometers even when the tire pressure is completely lost. Here is more information about run-flat tires: 1. The technical name for run-flat tires is "Tire Pressure Monitoring System", abbreviated as RSC. The inflated tire sidewall is the main part that supports the weight of the vehicle, especially for tires with a larger aspect ratio (the ratio of tire height to width), where the sidewall is very "thick". 2. The design principle of RSC run-flat tires is to use a sturdy sidewall to provide support. Vehicles equipped with run-flat tires may not alert the owner when a minor air leak occurs, so RSC also includes a TPI electronic warning system installed on the wheel rim. Once the tire pressure begins to drop, RSC immediately alerts the driver.
I've driven quite a few cars with run-flat tires. After a puncture, the tire can still support the car for a certain distance, usually between 80 to 160 kilometers. However, the exact distance depends on your speed and road conditions. If you drive faster than 80 km/h, the tire will wear out more quickly, reducing the distance. Once, I had a puncture on the highway and drove slowly to the nearest service area about 60 kilometers away, and the tire was already slightly deformed. My advice is to slow down below 60 km/h as soon as you notice a puncture, avoid sharp turns or heavy loads, otherwise, you risk damaging the wheel rim and increasing repair costs. Safety first—don't push your luck by driving too far. Get to a professional repair shop as soon as possible. Regularly checking tire pressure can help prevent punctures.
