A large number of “weight reduction and shrinkage” tires are coming! Be wary of cheap tires!

Some time ago, there were reports of tire shrinkage incidents. At that time, a small number of shop owners reported that some tire manufacturers produced “shrinked” tires in order to reduce costs.

Just yesterday, according to a report from Guangrao Tire, Shandong Province, in June, there was a wave of weight reduction in the tire factory, and the increase in light and dark. To 54 kg, and even reduced to 52 kg. 12R22.5 is the cheapest tire, and the unit price per kilo has risen from 12.5 yuan/kg to 14 yuan/kg.

Some people say that losing weight is not good? Heavier weights run slower, lighter weights run faster.

Big mistake!

What is a “shrink tire”?

The so-called “shrink tires” refers to tire products produced by manufacturers with the goal of reducing tire materials and labor specifications, and saving costs by reducing tire weight, reducing toe materials, and narrowing the crown.

The shrunk tires naturally cannot achieve the performance promised by the manufacturer, which will not only affect the product life, but may even damage the safety performance of the tires.

Would you dare to use such tires?

How to distinguish “shrink tires”?

After all, “shrinked tires” are the shrunk version of normal tires, and it is still difficult for tire novice to distinguish. But we have also prepared several methods to identify “shrink tires”:

  1. The weight of the same size tire is reduced

The main materials of tires are usually rubber, steel wire and cord. The amount of materials used often determines the size and weight of the tire, and also affects the functional performance of the product.

As competition between tire brands intensifies, some manufacturers may manufacture tires by reducing the number of wire turns, reducing the density of steel wire arrangement, or replacing the steel wire layer with a ply. This adds up to a lot, and can save a lot of raw material consumption.

However, at the same time, the tire weight of such tires is often lower than the marked product weight. The use of tires of the same specification and different weights will often have a negative impact on the driving stability, and will bury the hidden danger of accident liability for the stores engaged in tire replacement.

In addition, reducing the use of the steel wire layer will weaken the stability of the tire structure to a certain extent and shorten the service life of the tire.

  1. Is the toe material thick?

The toe part is an important load-bearing part of the tire, and it is also the main area where the tire and the rim generate heat. If the tire company reduces the material used in the toe opening, it is easy to form toe opening cracking after the toe opening becomes thinner.

What’s more terrible is that the reduction in the material used for the toes is likely to become a “death killer” for tire store operators.

While thin-toe tires are easy to install, changing tires can be dangerous if the rims are deformed.

Since the current truck tires generally have the problem of exceeding the tire pressure of the inner tube, some car owners even require the tire shop to increase the air pressure to more than 14. The toe has been working under high pressure and non-equilibrium force for a long time. When re-inflating or replacing it, it is very likely that Become a breach of air pressure, resulting in a tire explosion.

  1. Narrowing of the crown

The grip performance of a tire largely depends on the width of the tire crown. Although shrinking the tire crown can reduce rolling resistance, the sacrificed grip performance often creates hidden dangers without consumers’ knowledge.

Moreover, it’s still the same old question. Now the tire pressure of trucks is generally too high. The narrow tire crown means that the tire needs to bear a higher unit pressure than the standard tire crown, which will accelerate the consumption of tires, and at the same time, when changing tires The risk of explosion is also higher.

  1. Light tire pattern engraving

The deeper the pattern of the tire, the greater the elastic deformation of the block on the ground, and the rolling resistance formed by the elastic hysteresis loss of the tire will also increase accordingly.

If the tread pattern of the tire is too shallow, it will not only affect its water storage and drainage capacity, but also prone to harmful “water skiing”.

Why do “shrink tires” incidents occur frequently?

Here are a few reasons:

  1. The price does not rise, and the profit of tire manufacturers declines

Presumably all shop owners also know that the first half of the year can be said to be the first half of the year when the tire price “takes off”. There is constant price increase information, big brands go up, small brands go up, and brands you haven’t heard of also go up, and even some companies have decided. Price increase information for July.

As for the price increase, everyone is already numb. The tire shop owners are basically like, you increase yours, I sell mine.

On the other hand, the repeated epidemics in recent years have caused the prices of raw materials and freight to skyrocket.

In the financial reports released by various tire companies at the beginning of the year, a considerable number of companies mentioned the impact of rising raw materials on corporate profits.

From the data point of view, the profits of many tire companies in 2021 will decline year-on-year or even lose money, especially those specializing in commercial vehicle tires.

After all, raw material prices and freight prices have remained high, and the profit problem of enterprises has yet to be solved. However, the market demand has always been sluggish, and the price increase has not been able to rise. Some tire companies have used their brains.

  1. Homogeneous competition tends to intensify

In recent years, a large number of small and medium-sized brand tires have emerged in the domestic market. These tires have similar product performance, similar production levels, and similar prices.

Nowadays, there are too many monks and porridge in the market. If such a large number of homogeneous tires want to compete for survival, they can only compete at low prices. Now that the price of raw materials is so high, tire companies make a fuss about the cost of materials. It is the fastest price war method.

And that’s what worries tire shop owners the most.

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