What are the differences between run-flat tires and regular tires in terms of markings?

[Rhett]

Differences between run-flat tires and regular tires: differences in appearance, structure, performance, and weight. Differences in appearance: Run-flat tires have special markings. These special markings are usually found after the tire size on the sidewall. The markings vary depending on the tire brand. If there are special markings, it is a run-flat tire; if not, it is a regular tire. Differences in structure: Regular tires have relatively thinner sidewalls, while run-flat tires have thicker sidewalls. Due to their different structure, run-flat tires are more durable, wear-resistant, and safer than regular tires. Differences in performance: In addition to the functions of regular tires, run-flat tires can allow the vehicle to travel a certain distance even at zero tire pressure. Generally, they can travel up to 80 kilometers at a speed of 80 km/h. Differences in weight: Run-flat tires are heavier than regular tires. If a car is equipped with four run-flat tires, it is equivalent to carrying the weight of an additional person.

[SanJulianna]

As someone who enjoys tinkering with cars and often researches tire details, I've noticed that run-flat tires and regular tires have very different markings. Run-flat tires usually have codes like RFT or RUN FLAT engraved on the sidewall, and some brands use ZP or DSST markings—making it easy to identify them as run-flat types. Regular tires are simpler, with just the tire size, brand, and manufacturing date, and no special markings. The difference isn't just in the labels; run-flat tires have a unique structure with reinforced sidewalls for added durability. Even if punctured, they can support the car for 50 to 80 kilometers, avoiding the danger of an immediate breakdown, which significantly boosts safety. However, there are downsides: they produce more noticeable vibrations while driving, cost twice as much, and require professional tools for replacement. For highway driving, I find these markings on run-flat tires extremely practical, so it's important to check them carefully when buying a car to avoid being misled by sellers.

[BrookeRose]

With over 20 years of driving experience, I'm quite familiar with tire markings. The main difference between run-flat tires and regular tires lies in the sidewall imprints. Run-flat tires typically feature RFT or similar symbols, clearly indicating they are run-flat types; regular tires appear plain with only specification codes like numbers such as 195/65R15. The key distinction is that run-flat tires allow you to continue driving for a distance after a puncture, reducing accident risks, but their stiff construction leads to more cabin noise. Regular tires fail immediately when punctured and require prompt attention. These small markings relate to major safety concerns. I recommend checking tire markings during each maintenance to ensure they match your vehicle model. As someone who frequently drives long distances, spotting run-flat tire markings always gives me peace of mind, though they are slightly more expensive and have a shorter lifespan, requiring a balanced consideration of pros and cons.

[DeAmelia]

I drive daily for grocery shopping and picking up kids, not knowing much about tires, but run-flat tire markings are easy to remember. They have 'RFT' or a flat-running symbol on the side, recognizable at a glance; regular tires don't have this, just plain. The difference is that run-flat tires can keep going for a while even when leaking air, while regular tires will leave you stranded on the roadside if they burst—annoying. Learning this is good, so you won’t panic in case of trouble. For example, when choosing a new car, check the markings—safety matters. Though run-flat tires are slightly more expensive, the markings help you identify the type—just avoid mixing or misusing them. Simply look for the markings on the tire sidewall; regular tires have more basic info.