What is the principle of run-flat tires?

[McJoel]

It is mainly due to the thickened rubber sidewalls. Even when air pressure is lost, the sidewalls can still support the weight of the vehicle without causing severe deformation. Therefore, a tire blowout will not significantly affect the vehicle's driving, and the owner might not even notice it. Here is some relevant information: 1. Run-flat tires are technically called "tire pressure monitoring systems." The English abbreviation is RSC. The inflated tire sidewall is the main part that supports the vehicle's weight, especially for tires with a larger aspect ratio (the ratio of tire height to width). The sidewalls are very "thick," and a severe "blowout" usually causes the sidewall to collapse instantly, causing the tire to lose support immediately. This leads to an instant change in the vehicle's center of gravity, especially in the case of a front-wheel blowout in front-wheel-drive vehicles. The sudden shift in the center of gravity after a blowout can easily cause the vehicle to lose control. 2. The biggest advantage of run-flat tires is that in the event of a tire leak, even if the air pressure is completely lost, the vehicle can continue to drive at a speed of 80 km/h without the need for immediate tire replacement.

[SaraDella]

I've been in auto repair for over a decade and frequently deal with tire issues. The principle of run-flat tires is actually quite simple: it lies in reinforcing the sidewall structure. Regular tires go completely flat when punctured, but run-flat tires incorporate rigid support rings or high-strength rubber layers. Even when leaking air, these reinforced sidewalls can still support the vehicle's weight, preventing rim damage and allowing drivers to continue for dozens of kilometers to safety. This design isn't foolproof though - the tire pressure monitoring system is crucial. Any air leakage requires immediate repair to avoid accelerated wear. I recommend using these tires regularly, especially for highways or mountainous areas where blowout risks are significantly reduced - safety comes first. Though slightly more expensive and less comfortable, their overall cost-performance ratio is excellent and well worth recommending.

[FaithFitz]

I really enjoy researching new car technologies, and run-flat tires are a great example. The principle is that the tire sidewalls are made extremely rigid using pressure-resistant materials like polymer skeletons, so even if punctured, they maintain their shape and can keep going. I once tested this on a long-distance drive—my tire got a hole but stayed stable, allowing me to drive another hundred kilometers at reduced speed without getting stranded. This technology reduces the risk of losing control during a blowout, making it ideal for city traffic and avoiding roadside breakdowns. Key considerations: compared to regular tires, installation must match the rim type and ensure the tire pressure monitoring system is responsive; otherwise, safety risks remain. Overall, it's a cool piece of tech worth upgrading your car with.

[JoshuaLee]

As an experienced driver, I take car safety very seriously. The principle of run-flat tires is that their sidewalls are extra thick and embedded with rigid materials, so they won't completely collapse when punctured, supporting the vehicle's weight to allow you to drive to a repair shop. This design reduces the hassle of changing tires on the road, saving time and effort. Among the benefits, they're suitable for family vehicles, such as when driving kids to school without worrying about sudden blowouts. The downside is they're a bit more expensive and make the ride slightly bumpier, but safety comes first. My advice is to choose reputable brands and check tire pressure regularly.