Kumho event" sounds "foot" alert

After Kumho Tire's “two sets of standards” production event was exposed, many car owners began to worry about the safety of tires. After all, this is directly related to the safety of drivers and drivers. Although experts say that non-compliance tires manufactured by such companies as Kumho need to be detected by high-tech methods, not all inferior tires can achieve such a “professional” level.

A survey by the reporter found that many car owners now go to the Auto Parts market to replace tires on their own, because compared with the 4S shop, the tire prices in the auto parts market are lower, and they can save time and money for replacing tires and doing four-wheel alignment. However, tire sales in the auto parts market have a mixed phenomenon, where retreaded tires and poor quality tires are mixed, and if consumers are not careful, they are likely to “catch up”. To this end, the reporter interviewed a number of maintenance experts, for tire purchase, they put forward some practical professional advice.

Chen Gang, the technical director of Jayatech’s 4S store, told reporters that tires are one of the most important components of car driving agencies and are directly related to the safety of vehicles. "Choose tires first of all to learn to see the various patterns on the tires." Chen Gang told reporters that the pattern on the car tires, in addition to play an aesthetic effect, the performance of the tire has a great impact. "Cars that are often used in urban areas should choose those that have better drainage patterns; for cars that require cross-country and long-distance running, you can choose large patterns."

In addition, according to Chen Gang introduction, there are tires on the rolling direction, wear limit and other signs need to pay attention to, "The pattern on the tire is particularly critical for the drainage slip in the drive, we must pay attention to the scroll direction logo, do not install the anti; In addition, each One side of the tire will use a rubber strip or a rubber block to mark the wear limit of the tire. Once the tire wear reaches this mark, it should be replaced in time. Otherwise, a tire burst will occur due to insufficient strength.

Zhang Liwei, the technical director of Sanyuanqiao Toyota Store, reminded the owner that when choosing a tire, he must also be careful not to mix different types of tires. In addition, Zhang Liwei also pointed out that in the purchase, we must learn to identify retreaded tires. “The method of identifying retreaded tires is very simple: the most common is to observe the color and luster of the tires, and the color and luster of the retreaded tires are relatively dim.” Zhang Liwei said that the owners can identify the tires by the signs on the tires. The tires on the tires have some raised signs. The signs of the retreaded tires are re-applied after renovation. The signs of the new tires are: One of the tires, "the identification method is to use fingernails to scratch these signs, the general retreading of these signs are not very tight, can be caught off the retread is no doubt."

Another more direct way is to judge from the price. Xiao Wuji Auto Parts Market Bridgestone franchise store manager Chen told reporters that the auto parts market is now very competitive, the tire's profits have been pressed very low, so, "basically, the prices of the various companies will not differ too much if Which shop offers more than 30 yuan for a child than other families, then the source of the fetus is very doubtful."

There are several aspects of vehicle replacement tires that must be taken care of when the twin tires are mounted on the same axle and cannot be mixed. The new tires have a large diameter and the old ones have small diameters. As a result, the new tires will be heavily overloaded, old tires will be underloaded, and new and old tires will wear unevenly.

When twin tires are installed on the same shaft, they cannot be loaded with tires of different specifications. The diameters of tires of different specifications are also different. Large diameter overloads and underloading of small diameters can also cause uneven wear of tires.

No retreaded tires can be installed on the steering shaft. Due to the poor adhesion between the retread floor and the old carcass, it is easy to pick up the retread when turning the car and lose the steering function. In addition, plies of old tires often have flaws and are prone to punctures, so they cannot be mounted on steering shafts.

The same pattern of tires must be installed on the same axis, otherwise there will be different adhesion of the tire on both sides of the same axis, because the bias of the braking force on both sides of the tire is too large, it is prone to brake deviation.

The characteristics of several major brands of tires Nowadays, the owners of the market choose more tires in fact have their own characteristics, not expensive like, should be based on different models, equipped with different types of tires, suitable is the best. The following is what the experts used to tell the owner what kinds of tires are suitable for a car.

Michelin: The comfort and quietness are very good, but the tires are soft and scratch-resistant. The side of the tire is scratched by sharp objects. Therefore, Michelin is best suited to mid-to-high-end models that require a high level of comfort. However, special reminders, those novice drivers who are often prone to “close contact” with such things as roadsides, are better off picking Michelin.

Dunlop: Comfort, quietness is good, although there is a certain gap compared to Michelin, but the price is relatively modest, cost-effective, adapt to a variety of models, is the first choice for many private owners seeking economic benefits.

Bridgestone: Wear resistance is good, comfort, quietness is also good, belong to high-end tires in the "whole gold", no characteristics, all aspects of performance are more balanced, so sales are also very large.

Goodyear: Silence is good, grip is strong, but wear resistance is general, overall cost-effectiveness is low. Suitable for off-road vehicles such as SUVs, and those who are pursuing a sense of speed while also ensuring safe conversion.

Hantai: The biggest advantage is that the price is relatively low and wear resistance is strong, so it is used by many owners. In general, Hankook Tire is mostly used "old" instead of being used. The aging of Hankook tires mainly manifests in small cracks on the sidewalls, etc., and the tread pattern wear is not obvious. Using Hankook's owners to make this clear, can we accurately determine the timely replacement of tires.