How to determine the size of the wheel

If you have come to replace the tires from your car, then be prepared to answer the auto-automata consultant to the question about their size.

Find information on the size of the tires and disks in the machine manual. In the absence of a manual, find the information in the electronic version on the automotive website and download. The data will be able to detect on the driver's door, the gas tank cover, the outer sidewall of the installed bus, in the front passenger glove box or the motor compartment of the car.

Take advantage of the tire calculator on the brand of the machine on the Internet, which will indicate not only the standard factory size of tires and disks, but also offer several alternative replacement options.

Find letters and numbers of the form "205/55 R16". The first three-digit number informs about the width of the tire profile in millimeters. The next two-digit number indicates the percentage ratio of the tire profile width to its height. The lack of designation is equal to 82%. The designation in the form of letters "R", "D" or "B" displays the features of the structure of the tire frame. "R" - radial, "D" - diagonal, "b" - diagonal-sliding tire frame type. To coordinate the size of the tire and disks on the car, the following two-digit number is indicated. It is measured in inches and equal to the inner diameter of the tire and the diameter of the wheel rim.

Marking of the car disk is encoded by numbers and letters of the form "7JX16 4/108 ET 32". The first digit is indicating the landing width of the rim in inches. The letters "j", "jj", "jk", "k", "b", "d" or "p" inform about the structure of the rim decorated. Next, the numeric value of the disk diameter in inches without switching on the height of the rim is closed. The slash divides the number of bolted holes and their diameter in millimeters. The last combination of letters and numbers sets the value of the wheel disk flying in millimeters.

Properly selected tire size and disk will provide an acceptable load with a rotary mechanism and car suspension, and will also contribute to safe road movement.