What is the Function of Run-Flat Tires?

[DiRylee]

Run-flat tires allow a vehicle to continue driving up to 80 kilometers at a speed not exceeding 80 kilometers per hour after a tire blowout occurs. Below is a detailed introduction to run-flat tires: 1. Overview: The technical name for run-flat tires is "Tire Pressure Monitoring System Tires," abbreviated as RSC. The inflated tire sidewall is the main part that supports the vehicle's weight. 2. Other Information: A tire blowout is a very serious safety incident, especially on highways. According to statistics, 70% of accidental traffic accidents on domestic highways are caused by tire blowouts, and the fatality rate approaches 100% when a blowout occurs at speeds above 160 kilometers per hour.

[MacJasmine]

The main function of run-flat tires is to allow the vehicle to continue driving for a certain distance even when the tire is leaking or punctured, preventing you from suddenly stopping in a dangerous area. Having driven for decades, my biggest fear is a tire blowout on the highway—regular tires can cause complete loss of control when punctured, often leading to rollover accidents. Run-flat tires have reinforced sidewalls, like those used in BMWs, which can still support the vehicle's weight after a puncture, allowing me to drive slowly for 50 to 80 kilometers to a safe repair location. These tires don’t actually prevent blowouts but significantly reduce the risks afterward, especially when driving in rain, snow, or at night, ensuring you won’t be stranded. Although they are more expensive and slightly heavier, potentially increasing fuel consumption, the investment in safety is well worth it. I recommend long-distance drivers consider equipping their vehicles with a set. After all, driving is no joke—arriving safely is what truly matters.

[Oliver]

I think the best thing about run-flat tires is the convenience they bring to daily driving, saving me the hassle of changing tires on the roadside. As a mom who often drives her kids to school, I've encountered minor leaks several times and could safely drive to a repair shop to fix them. Simply put, run-flat tires prevent the car from breaking down after a puncture, maintaining basic driving ability for at least several dozen minutes. This makes family life easier—no sudden stops disrupting schedules, and less waiting time and risk from calling a tow truck. They also protect the rims from damage, avoiding higher repair costs. When choosing a car, I prioritize this feature because, with kids at home, safety and efficiency must go hand in hand, making driving more reassuring. Even if they cost a bit more, it's worth it—peace of mind is more important than saving money.

[LaEthan]

Run-flat tires are not just a gimmick; their core function is to enhance driving reliability. A regular tire is done for once it blows out—the tire flattens, and the wheel spins uncontrollably, which is downright terrifying. Run-flat tires, on the other hand, feature thickened rubber or reinforced sidewalls that can still support the vehicle even after a puncture, allowing you to drive slowly to a service station. This helps prevent the risk of being stranded on the road. I think it's a smart move for modern cars to be equipped with these, as they eliminate the worry of punctures or air leaks disrupting your plans. Although they come with higher maintenance costs and added weight, the safety benefits far outweigh these drawbacks, making them absolutely worthwhile protective gear.