What is the tire speed index?

The selection of the correct rubber includes consideration of a variety of factors such as chemical composition, profile height, tire width and height, cord designs, radius and tire speed index.

All the variety of tires is divided into radial and diagonal, with the camera inside and without it. Each of these types of tires has its own distinctive features and characteristics.

The tire speed index isthe designation of the maximum speed that a tire installed on the machine with maximum load can tolerate. This value is standardized and has the status of an international sample.

This criterion is denoted by Latin letters. This characterizes the category, and therefore the most important component. For example, the tire speed index r, q, l, m, k, vr, zr, and so on.

Manufacturers producing modern tires test selective tires from a common lot. This allows you to calculate the average tire speed index in the best condition.

Therefore, this criterion does not extendits impact on damaged or repaired tires. Nevertheless, if a letter designation equivalent to the permissible speed is indicated on the side of the tire, in this case everything is simple. It is only necessary to find the corresponding table and determine the required value from it. However, if the value of the speed index is not written, then by default it is considered that the maximum permissible speed mode should not exceed 110 kilometers per hour.

The tire load and speed index is two of the most important,but very different concepts. These indicators have a significant relationship with each other. On high-quality tires, the values ​​of these two indicators are necessarily placed on the side of the tire.

The load index is called the internationalStandardized designation, which indicates the maximum value of the allowable load in terms of each bus. Another name for this coefficient is the load index (load factor). However, many foreign manufacturers say not only alphabetic, but also digital designation. Often, this value is indicated in pounds or in kilograms.

A lot of car owners believe that,To find out the load index, you only need to divide the mass of the car by the number of wheels. However, such an approach reveals a significant error. To obtain a more accurate result, it is necessary to take into account some factors and the tire speed index.

However, the small value of the load indexallows you to make the driving process softer and smoother, more comfortable, and also less noisy. The low value of this indicator has not only advantages, but also disadvantages, one of which is the rapid wear of the tire, which means a short service life. On the contrary, tires with a high index of load capacity are characterized by high mechanical strength, wear resistance and rigidity.

Each manufacturer recommends the use of a specific type of tire, so you need to listen to his advice.