Owner’s welfare, the eight most practical car tire knowledge analysis!

tireYescarOne of the important parts of the car, it is directly in contact with the road surface, and together with the car suspension to alleviate the impact of the car when driving, to ensure that the car has good seating comfort and driving smoothness. Although it is not as concerned as the engine and gearbox on the technical level, it is also an indispensable part of the safe driving of the car.

1.How to check the tire size parameters from the tread?

Take 185/65 R 14 86 H as an example, the first number, such as 185, represents "tireWidth" (the distance between the two sidewalls, in millimeters). The second number, such as 65, represents the "flat ratio", which refers to the ratio of tire height to tire width. "R" represents the radial structure, the letter The following number, such as 14, represents the "wheel diameter", and its unit is inches, which is 14 inches. 86 represents the load index; H represents the allowable speed level of the tire.

2.What should I do after a car puncture-proof tire and a car puncture at a high speed?

Explosion-proof tires are not really free from puncture. It is that even if the tire pressure drops to zero, it can still ensure that the tire is securely fixed on the rim, so that the tire can continue to travel a certain distance, which can directly reduce the risk of car explosion. The probability of a traffic accident due to a tire. But mainly because of the high production cost of run-flat tires, it is generally only common in luxury cars.

If a car running at a high speed suddenly punctures a tire, the car that loses its balance will inevitably tend to deviate or appear severely swaying.steering wheelIt’s difficult to control. All you need to do at this time is to hold the steering wheel tightly to prevent the direction from deviating, and leave your feet on the throttle andbrake, Let the car slip by itself, and when the speed drops and the steering wheel can be controlled, the brake can be lightly pressed to stop the car. Avoid emergency braking, otherwise it is very easy to cause accidents such as a rollover or crash.

3.How do you see the production date on the tires?

As shown in the picture, this tire was produced in the eighth week of 2007. Because the tire will age naturally, it is said that the tire storage time will also affect its performance.

4.Tire rotation and4SStore or impose items

Due to the different installation positions of the tires, the working conditions and the load on the front and rear tires of the vehicle are different. It should be known that due to the different parameters of the tires such as toe, inclination, load, air pressure, driving or driven wheels, braking, turning and gripping, after a certain kilometer, the inner and outer sides of the tire and the wear of the front and rear wheels will be inconsistent. At this time, it is necessary to do transposition or four-wheel positioning, and in order to obtain uniform wear and maximum tire mileage, tire transposition is necessary.

Dynamic balancing is usually done after disassembly and assembly of the tire from the rim. Therefore, dynamic balancing is not required for four-wheel shifting. Discomfort symptoms such as abnormal tire wear, vehicle deviation, safety decline, fuel consumption increase, accelerated parts wear, steering wheel sinking, vehicle fluttering, etc., when the driver feels these conditions, he should consider four-wheel alignment. Therefore, if the tires do not have the above conditions, but the tires are slightly worn or changed regularly, there is no need to do four-wheel alignment.

5.Full-size and non-full-size spare tires

Automobile spare tires are classified according to types, which can be divided into full-size spare tires and non-full-size spare tires. A full-size spare tire is better understood, that is, a spare tire with the same specifications as the four original car tires, and usually uses the same rim as the original wheel; a non-full-size spare tire is a spare tire with a narrower tire width or a smaller rim size. Tire can only temporarily replace the original fetus and cannot be used for a long time. Remember!

6.What is a tire upgrade?

When the car owner is not satisfied with the original car's tires (appearance or handling performance), the tires are generally upgraded. One is to upgrade the tire size. Simply put, it is to widen the tire tread, or increase the inner diameter of the tire, or both at the same time. This upgrade method should first ensure that the outer diameter of the tire does not change more than plusmn; 3%, and ensure Tire rotation space; one is to choose a tire brand with the same specifications as the original tire, but with a higher grade and better performance.

7.How long should the tires be replaced?

If the tire is worn to the point where the tread groove is 1.6 mm or a horizontal line is exposed at the wear warning sign "△" on the tire shoulder, it must be replaced, otherwise accidents may easily occur.

8.What happens if the pebbles in the tire are not buckled?

If there are too many pebbles in the tires, I must recommend that you buckle them, otherwise there will be noises when driving, and the grip of the tires will be reduced. Such driving will aggravate the wear of the tires. Sadly, there is a risk of a flat tire. If there are not many pebbles in the tire, just ignore it, after all, it's not that delicate. How can the amount of pebbles be large? It depends on your mood!

For your safe travel and smooth driving, daily tire inspection is essential, especially before running a long distance, check the tire pressure, tire wear and whether the tire is nailed, etc., and are responsible for your safety.