Although short of gastireMore and more popular, but the spare tire is still a must-have for most vehicles. Relatively speaking, the spare tire is a bit strange. Today we will share some common sense about spare tires.
1. What is a spare tire
The spare tire, as the name suggests, has the same size and specifications as the original car (full-size spare tire).In order to remind the owner to check or replace the fault in timetire, Will use a special colorWheel hub. In addition, there are non-full-size spare tires, folding spare tires and zero pressure spare tires. Usually the spare tire is a spare. There is a spare tire hanging under the floor of the carriage.
2. Spare tire type
1. Full-size spare tire: The full-size spare tire has the same size as the other four tires of the original car, and can be replaced with any temporary or no longer used tires.
2. Non-full-size spare tire: The diameter and width of this spare tire are slightly smaller than the other four tires. It can only be used as a temporary substitute tire and can only be used for non-driving wheels. The maximum speed cannot exceed 80 km/h.
3. Zero-pressure tires: Zero-pressure tires are also called flat tires, commonly known as "explosion-proof tires", which are literally translated as "run-flat tires" in the industry. Compared with ordinary tires, zero-pressure tires will not leak or leak slowly after being punctured, and can maintain the driving profile. The bead can also be fixed on the rim to ensure that the car can drive to the repair station for a long time or temporarily. stability. Therefore, cars equipped with such tires will no longer need to carry spare tires, so that the spare tires can be hidden in the four tires in another way.
3. Practical precautions for spare tires
1. Due to the low frequency of use of the spare tire, its degree of wear is different from the other four tires, and the coefficient of friction will also be different.If the spare tire is used for a long time, it will affect the vehicle’sBraking System,steering systemAnd suspension system will also give trafficseat beltHere are some hidden dangers. Therefore, we should repair damaged tires and replace spare tires in time.
2. Pay attention to adjusting the air pressure when replacing the spare tire. As there is a certain value difference between the pressure of the spare tire and the pressure of the in-use tire, the air pressure gauge should be used before replacing the spare tire so that the spare tire can be used normally.
Four, spare tire maintenance
1. Regular inspection of the spare tire: Before performing daily maintenance or long-distance travel, check whether the spare tire is worn or cracked. If the spare tire has worn down to the mark line, it should be replaced as soon as possible. If there are small cracks on the side of the tire, it cannot be used for long-distance or high-speed driving, because the thinner sidewall of the tire is easy to burst at high speed.
2. Don't put it together with corrosive products: Because the main component of tires is rubber, rubber is most afraid of various oils.Some car owners often store similar oil in the trunk, such aslubricating oil. When these oils come into contact with the tires, it will cause a certain degree of tire inflation, which greatly reduces the service life of the tires.
3. Spare tires also have a lifespan: Don't think that you can "live a hundred years" by putting the spare tire in the trunk without using it. Perhaps some car owners have encountered a similar situation. When the tire is tied or damaged, they want to replace the spare tire, but they find that the spare tire is seriously aging and cannot be used. This is because tires are rubber products and will age for too long. The general aging period is about 4 years.
4. The spare tire is not suitable for long-term use: due to the low frequency of use of the spare tire, the coefficient of friction is different from that of the other four tires. The deflation rate, width or diameter of the non-full-size spare tire is different from that of ordinary tires. Use will have a certain impact on the vehicle's braking system, steering system and suspension system. Collision will bring hidden dangers to driving safety and cause uneven friction of other tires in the same direction.
5. Put the repaired tire on the rear wheel: If you want to use the repaired tire again, you should put the repaired tire on the rear wheel in any driving mode. This is because the risk factor of the front wheel after a puncture is relatively high, so it is safer to place the repaired tire on the rear wheel.
Although spare tires are not often used, they can provide you with carbon in the snow in case of malfunction or emergencies. Rare use does not mean that we can ignore it in peacetime. Generally, we should use and maintain spare tires in the right way. This is an indispensable task and responsibility for every car owner.
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