Rumor: Can you sit back and relax after installing a run-flat tire? Fake, run-flat tires are actually not explosion-proof!


Release Time:

2021-09-15

At present, many luxury brands on the market use run-flat tires. On the one hand, this kind of tire has a relatively higher safety factor than ordinary tires, and on the other hand, it can save a certain amount of trunk space. But does a run-flat tire mean that you are not afraid of a flat tire? Is there really no need for a spare tire in the case of a run-flat tire?

At present, many luxury brands on the market use run-flat tires. On the one hand, this kind of tire has a relatively higher safety factor than ordinary tires, and on the other hand, it can save a certain amount of trunk space. But does a run-flat tire mean that you are not afraid of a flat tire? Is there really no need for a spare tire in the case of a run-flat tire?

Explosion-proof is not impossible to explode, the real effect should be clear

I believe that many consumers will be misled by the word "explosion" of run-flat tires, thinking that run-flat tires will really not blow out. In fact, the full name of a run-flat tire is a run-flat tire, and the English abbreviation is RSC. Generally, a tire with the RSC logo printed on the sidewall of the tire is a run-flat tire.

Although many people habitually refer to run-flat tires as run-flat tires, this does not mean that run-flat tires will not puncture at all. For this, first of all, it is necessary to clarify the role of run-flat tires, that is, to ensure that the vehicle can still travel at a low speed for a certain distance by relying on the thick sidewall and internal structural support in the event of a tire leak or lack of air. In simple terms, run-flat tires are not explosion-proof, but because the tire wall is treated, the probability of explosion-proof is small. In the case of air leakage, lack of air or bulging, the tire still needs to be replaced in time.

How to choose is the key, safety awareness can not be less

Since run-flat tires cannot be run-flat, is it necessary for consumers to choose run-flat tires? To answer this question, first look at a set of data. When the speed of the vehicle exceeds 160 km/h and the front tire is punctured, the fatality rate can reach 100%. And 46% of accidents on the highway are caused by tire failure, among which, puncture accounts for 70% of the total. That is to say, although there is still a certain probability of a flat tire, a flat tire can improve the driving safety to a certain extent compared with ordinary tires.

At the same time, the spare tire saved after the use of run-flat tires can further optimize the front-to-rear weight ratio of the car body, and at the same time increase the storage space. Therefore, it is not difficult to understand that many luxury brands make run-flat tires standard. Since there are so many benefits of run-flat tires, should the vehicle blindly pursue standard run-flat tires? This is not the case, it is not advisable to be overly superstitious about runflats. Consumers should develop a good habit of checking tires regularly, pay attention to the service life and condition of tires, and develop a good sense of safety.

High cost and uncomfortable, traditional tires are also practical

In addition, runflats are not all advantages. In particular, the thicker sidewall makes the tires harder, which is not conducive to later tire repairs. Secondly, it is subject to cost, and the price of many run-flat tires is not cheap. Therefore, at present, only many luxury brands will be equipped with standard tires, and entry-level family cars are only equipped with ordinary tires.

At the same time, the use of run-flat tires also has certain requirements for the tuning of automobile suspension. Compared with traditional tires, thicker sidewalls have worse shock resistance and reduced comfort. At the same time, some hard impacts brought by the road surface will be directly borne by the suspension. . If a normal family car wants to replace a run-flat tire, the suspension has to be retuned to be safe.