Automotive tires are an extremely important element of a car configuration, since it depends on the correspondence of the car declared characteristics and your safety on the road. For example, a car clearance, speedometer, car suspension stiffness, suspension load, will depend on the wheel size of the wheels. So to move from the sizes declared by the manufacturer with all caution. To begin with, examine the issue of calculating wheels for the car.
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Before purchasing new car tires, inspect the regular wheels and decide with the tire size size. On the side of the wheel you will see the numbers and letters of the form: 195/65R15. The first digits are the width of the tire, 65 is its profile, it is indicated as a percentage of width, R is radial marking, and 15 - disk diameter. Moreover, the width of the tire goes in millimeters, and the diameter of the disk in inches. If you have doubts that you bought a car on native rubber, it is better to refer to the specified numbers with the car documentation.
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If the sizes of tires suitable for your car are not available, you can replace it with another. It is important to remember that the deviation from physical dimensions should not exceed 20% in width and only 5% in diameter. With an increase in the diameter of the disk, you will have to reduce the height of the bus profile, and, as a result, the suspension load will increase, and the comfort of the car will decrease. If you need to enlarge the bus profile, the wheels can start cling the body and suspension and can provoke its damage.
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There are so-called tire calculators, they are presented on various Internet resources. With their help, you can choose what size is easy to replace the current wheels without negative consequences for the car and your safety. In order to use such a calculator, you must enter the width data, the bus profile and the disk diameter - new and alleged old. And the calculator himself will calculate the difference in physical dimensions, as well as inhaling the difference in the speedometer testimony and car clearance.
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You will also be offered in the catalog of tire sizes that will most successfully replace your regular sizes. Do not forget that the installation of non-standard tires may entail the deterioration of the various characteristics of the car. And due to smaller disks than provided, it may refuse the braking system, since the caliper will be strengthened into the inner part of the new disk.
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When choosing a new part size of the wheels, without the ability to use the calculator, repel from the fact that the excess of the external diameter is more than 10 mm not recommended. You should also take into account the width of the disks for your tire size, since the installation of the overwhelmed either a narrow disk will lead to a deterioration in the operational qualities of the tire, its deformation and a reduction in service life.
The easiest way to change the tires in specialized automotive centers, here you will pick up your own size, or replace it with a similar one, which will ensure compliance with all the chalches of the car. And you will be confident in the reliability of the car behavior on the road, your own security and comfort.
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