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What is the Difference Between Run-Flat Tires and Regular Tires?

2 Answers

LaGrant

07/28/25 3:06pm

Run-flat tires and regular tires differ in the following aspects: 1. Appearance: Run-flat tires have special markings, usually located after the specifications on the tire sidewall, whereas regular tires do not. 2. Structure: The sidewalls of run-flat tires are thicker compared to the relatively thinner sidewalls of regular tires. Run-flat tires, also known as zero-pressure tires, were developed primarily to address the frequent occurrence of blowouts during high-speed driving, which often leads to traffic accidents. In addition to the functions of regular tires, run-flat tires can allow a vehicle to continue driving for a certain distance even when the tire pressure is zero, typically up to 80 kilometers at a speed of 80 kilometers per hour.

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MaxMarie

08/11/25 10:47pm

The key difference between run-flat tires and regular tires is safety performance. When a regular tire blows out, it instantly goes flat, forcing you to stop immediately to change the tire, which can be extremely dangerous in rainy conditions or on highways and may lead to accidents. Run-flat tires, on the other hand, have reinforced sidewalls. Even if punctured by a nail and leaking air, they allow you to continue driving for 50 to 80 kilometers, safely reaching a repair shop without the urgent need to change the tire. This feature is crucial—last year, when I had a tire blowout while traveling in the mountains, the run-flat tire saved my life. However, they do have several drawbacks: they cost nearly twice as much, have higher replacement costs, and are heavier, affecting fuel efficiency. In the long run, if you frequently drive long distances or on poor road conditions, choosing run-flat tires is a worthwhile investment. Although they may offer slightly less comfort, safety comes first.

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