Talking about how to use explosion-proof tires correctly

2022-01-09 by No Comments

Nowadays, “run-flat tires” are more and more appearing in the configuration table of each new car, but car owners do not know about it. The following will tell you how to properly use run-flat tires.

Thick sidewall ensures that it can be used after decompression

Many car owners mistakenly think that run-flat tires refer to preventing tires from bursting. As the name suggests, the biggest feature of this tire is that it can allow the vehicle to continue driving for a certain distance when the tire loses pressure, thus saving the trouble of changing tires halfway. In addition, the spare tire can also provide more storage space and improve the practicability of the vehicle.

So, how does the “run-flat” tire do this? It’s actually not complicated. This kind of tire is no different from ordinary tires on the tread, which is composed of multiple layers of plies, and the biggest difference is the sidewall. The thickness and strength of the tire’s sidewall are much higher than those of ordinary tires, so as to ensure that the tire still has enough support to ensure the normal running of the vehicle after the tire loses pressure.

Serious loss of pressure requires careful driving

So, with this kind of tire, can you really “sit back and relax”? Of course not, “under-air” tires also have their own specifications. First, such tires have mileage and speed limits under decompressed conditions. Under normal circumstances, it can be guaranteed to travel 80-100 kilometers at a speed of 80 kilometers per hour after the loss of pressure. During this period of time, the “run-flat” tires can ensure the safety of driving, but when the pressure is seriously lost, the handling of the vehicle will be significantly worse, and even become difficult to control. Therefore, if conditions permit, it is recommended that you place the decompressed tire on the rear wheel to ensure the normal steering of the front wheel.

Higher cost and increased weight

To sum up, the “run-flat” tire seems to surpass ordinary tires in terms of use, but it also has some congenital defects. First of all, this tire is not very sporty due to the thick and stiff sidewalls. Secondly, compared with ordinary tires of the same size, the weight of “run-flat” tires will increase by about one-third. Although the weight of the spare tire is omitted, the increase in the mass under the wheel is not conducive to fuel consumption and handling. There is no benefit. The last thing is the cost. For most consumers of family cars, the starting price of thousands of yuan for tires with “deflated air” is still not easy to accept.

With the continuous advancement of technology, the development direction of tires with “deflated air” as a development direction of civilian tires is also constantly improving. Putting aside the price factor for the time being, this kind of tire will not make people feel its inadequacy most of the time, on the contrary, it has more peace of mind. In the following car column, we will add the test content of tires, and the first tire we tested is a “mysterious” “run-flat” tire.

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