Spare tire knowledge that must be understood Spare tire knowledge that must be understood

<h1 class= "pgc-h-arrow-right" > must know about spare tires</h1>

What parts are most important when driving out? Some people say engines, some people say brakes, but the real weight is high - tires. Tires are the most terminal transmission of power to the ground, and without tires to provide grip, you can't stop walking. If the engine is broken, it can be dragged away or even pushed away, but if the tire is broken, it can only be called the rescue and the whole is loaded and transported away.

In order to deal with tire emergencies, it is natural to have emergency measures. The mainstream means is the spare tire, but with the increasing urban population, often running in the city, good road conditions make many people almost forget the existence of the spare tire, the requirements for energy saving and space make more and more people feel that the spare tire is redundant, and they have begun to have a non-full-size spare tire. Later, urban people found that the utilization rate of this thing is too low, and some models simply do not even have spare tires, which should be continued for zero tire pressure, which is actually a blow-proof tire.

I believe that many car owners and friends do not have much understanding of the spare tire before and after buying a car, what are the characteristics of these three emergency measures? What are the pros and cons? How to use it? In this issue, we will talk about it for your reference.

* Full-size spare tire, as the name suggests, refers to the spare tire with the same specifications and pattern as the vehicle's standard tire. The same rims are usually provided.

merit:

1, in theory, it can be used as a standard tire, and the emergency effect is the best.

2. Cruising range and weighing are closest to standard tires.

Restrictions on Use

1. Large. It also occupies a relatively large space, generally installed under the luggage compartment floor, and will occupy a considerable amount of storage space when designed. There are also plug-ins, but they are easy to steal.

2. Heavy. The full-size spare tire is relatively heavy, and it is installed on the car every day, which will increase a lot of self-weight and increase fuel consumption, which is very wasteful. Most importantly, heavier tires are also more laborious to replace, and if women with little strength are driving and have broken tires, changing tires is equivalent to disaster.

3. Full-size spare tire ≠ standard tire. The biggest misunderstanding is that the full-size spare tire is regarded as "one more tire to send", but in fact, it is still a spare tire identity and cannot be used as a standard tire. Spare tires are not commonly used, and the pattern wear degree of standard tires is very different, just like two feet wearing different new and old shoes will be awkward, and long-term use will cause damage to the suspension and drive shaft. Another important common sense that is often overlooked is that as long as the tire is disassembled and assembled, it is necessary to carry out a dynamic balancing. Therefore, the full-size spare tire is still strictly speaking, it can only be used as an emergency spare tire.

* Non-full-size spare tires, refers to the specifications are smaller than the standard tires, occupy a lot of space, and the weight is generally only 2/3 of the standard tires.

1. Small. The non-full-size spare tire is narrower, so it makes more room for the luggage compartment and can hold more luggage.

2, cheap. The price is only 1/3 of the full size or even lower.

3. Light. Small is naturally lighter, generally non-full size is lighter than full size 1/3 or even more, it is easier to replace. It has a positive impact on fuel consumption, but it is very subtle, after all, it is only about 10 kilograms lighter.

1. The speed is not higher than 80km/h. This is understandable, after all, it is only a spare tire for emergency use. Wearing shoes of different sizes on both feet is definitely uncomfortable, and high and mild use must damage the chassis and drive shaft.

2. Mileage limit, replace it as soon as possible. The reason is the same as above, a long time will cause damage to the chassis, the optimal situation is to change back to the standard tire within 100 kilometers, but if the distance is longer, you need to further slow down the speed and change the spare tire position at intervals.

3, it is best to use in non-driving wheels. The non-full-size spare tire has a small load mass, which cannot provide the same grip as the standard tire, so it cannot be used in the drive wheel and steering wheel, otherwise it is easy to deviate.

What the two spare tires have in common:

The spare tire is not left there and needs to be maintained.

1. Check the tire pressure regularly. If the spare tire is a loss of gas, it will not play enough role, so be sure to check it regularly.

2. Avoid corrosion. Many friends like to put lubricating oil, glass water and some debris in the luggage compartment, if not tightened, it may flow out and seep into the spare tire cabin. Those who have waded through the water should also remove the accumulated water in the spare tire cabin as soon as possible and dry the spare tire. The liquid is corrosive to the rubber, and not cleaning for a long time will lead to the aging of some areas of the spare tire, and there are safety hazards when using.

3. Regular replacement. No matter what the size, even if it is never used, the spare tire will be forced to scrap after 6 years. The safety hazards of aging tires are very large.

Even with a more affordable and cheaper full-size spare tire, some consumers are still not satisfied, after all, they still have to replace the tires themselves, is there no solution without a spare tire? some!

* Zero tire pressure continuation (explosion-proof tire)

Zero tire pressure continuation means that the tire can continue to travel for a distance after it is out of gas, generally at least 80 kilometers or more, to ensure that the vehicle can successfully reach the maintenance point. This is not an electronic technology, it is actually the effect of using a blast-proof tire. It should be noted that the explosion-proof tire is not really "explosion-proof", it should be called "lack of air to maintain the tire", is to add a support structure in the tire wall, to ensure that the tire is still able to play a certain support role when the tire is out of air.

merit

1. Eliminate the need to replace tires. The biggest advantage of the explosion-proof tire is that you don't have to work hard to change the spare tire, because there is no spare tire at all. This is a blessing for many female car owners, driving directly to the nearest repair shop, drinking tea and so on.

2. Make more room. Without a spare tire, there is no longer a need to design a spare tire compartment, and the luggage compartment space is larger, freeing up considerable space.

3. Greatly reduce the chance of puncture. It should be noted that the explosion-proof tires of passenger cars are not the true sense of explosion-proof tires used in military vehicles, but because the unique structure of the explosion-proof tires will be more "strong", the probability of large-scale "explosion" will be very low.

1. Drive 80km/h or less. After all, the tire is broken, so to run a little slower, generally not too serious damage can support the continued driving of 80km, enough to meet the general urban use.

2. It needs to be used with tire pressure monitoring. This is the most commonly overlooked, because during the air leakage process or even completely out of gas, the explosion-proof tire is likely not to show obvious signs, resulting in the owner can not find the problem in time. Therefore, real-time tire pressure monitoring is needed to remind the owner to repair in time.

3, poor comfort. Because the explosion-proof tire has more structure and uses special rims, it is thicker and harder, so the shock absorption effect is reduced, and the comfort will be poor under the same conditions.

4, the price is high. Explosion-proof tires are obviously more technical and costly, and the price is generally about half as expensive as ordinary tires. Mostly used in luxury vehicles.

5, explosion-proof tires are not what you want to change. Explosion-proof tires are mostly used in luxury cars not only because it is expensive, but because of the use of explosion-proof tires, not only the use of special rims, the chassis must also be specially designed and adjusted. It should be known that the explosion-proof tire is relatively heavy, which will increase the under-spring mass of the vehicle, and the tire wall is harder, which requires the chassis to be specially adjusted, otherwise it will affect the comfort and accelerate the wear of suspension components such as wear shock absorbers. Chassis tuning is a relatively expensive project, and generally low-end cars do not have a cost budget in this regard. Therefore, in the configuration table, it is not just a "blow-proof tire", if you want to use a blow-proof tire, you need a complete set of "zero tire pressure continuation" system.

6. High technical requirements for repair. Due to the special structure of the explosion-proof tire and the harder tire wall, it is more difficult to pull it off the rim, and improper operation will cause irreversible damage to it, seriously affecting the tire life.

Summary: Having said all that, it seems that zero tire pressure continuation is the best? No, the choice of these three tire remediation options is determined according to the use environment.

The full-size spare tire may seem like the most wasteful and laborious, but it is the most reliable and durable. Therefore, it is basic common sense to use it in remote areas where maintenance outlets are scarce, or to drive off-road in harsh environments, with at least two full-size tires. There's no place to look for someone to repair that kind of place.

Non-full-size spare tires are the most affordable choice in areas with more maintenance online stores such as towns, cheaper, smaller and easier to replace, and if there is a problem, they will go directly to the nearby repair shop to repair it.

Zero tire pressure continuation seems to be the most convenient and worry-free solution, but after all, the purchase cost is too high, and in recent years, it may not be affordable for family cars. And maintenance is not convenient, in some small towns I am afraid that not every repair shop can repair. It is a good choice to use in the city.