SBT Car News

How to Read a Tire Size

How to Read a Tire Size

Those who are wondering about tires or to replace the tires of their cars for sale in Tanzania, supposed to know that how to read tire sizes, either these are summer or winter tires. The first thing to do is to visualize the marking of the rubber, embossed on its side, or shoulder.

The date of the tires is essential to understand when the tire was produced. Until a few years ago, this data was essential to assess the degree of wear as well, but today it is quite irrelevant, as long as the tires have been stored in optimal conditions. Before discovering how to read the date of the tires, it is essential to identify the abbreviation DOT which stands for Department of Transportation.

Production Date

Immediately after this marking, you will find further information, including the plant code (first two digits), the size code (next two digits), the brand identification (optional and consisting of 4 letters), and the production date single tire (last four digits).

How to recognize the year of construction of the tires? To know exactly when a tire was built, just read the last four digits that make up the DOT marking. For example, if the number is 2418, it means that the tire was produced in the 24th week of 2018. Simple isn’t it? So, a used car buyer needs to know about reading tires and their allied aspects to assure relaxed drives every season.

The abbreviations are located on the tire, a used car buyer can easily explore various aspects i.e: The brand: identified in the brand name; the model: specific to the individual tire; the intended use: indicated by letters or combinations of letters, immediately after the name of the tire brand; TWI: wear indicator; Tubeless: underlines the possibility of using the tire without an inner tube; The winter tire, the assembly of which is regulated by law; Knowing how to recognize the marking of winter tires is important in order not to incur penalties.

To Read Tires

How to read the marking: The size of the tire could not exactly easy to read, but once you are able to decipher that you will be able to obtain useful information regarding the structure, size, and type of tire in question.

Cross-section width: The first three digits refer to the tire section width, which is the distance between the inner and outer sides of the tire.

Height/width ratio: The ratio expressed as a percentage, between the height of the shoulder and the width of the section.

Type of structure: The letter R indicates that the tire has a radial structure. Almost all the tires of the latest generation cars are radial.

Rim: A used car buyer needs to note, on the side, there should be info about rim size.

Load index: The last digit is the load index, i.e. the load (in kg) that a tire can withstand.

Pressure & Pollution

The parameters reported referring to rolling resistance, wet grip and, finally, external noise. Rolling resistance: indicates the energy efficiency of the tire. Rolling affects fuel consumption by 20%, so increasing resistance means reducing emissions. The scale of values ​​shown on the label is between the letter “A” and the letter “G”, where “A” indicates the maximum energy efficiency and “G” the minimum.

The wet grip affects safety. The wet grip of the tires indicates road holding in rainy weather, as well as braking distance. The value scale is included between the letters “A” and “G”: class A tires with wet grip have about 30% greater grip than class “G” ones.

Noise: indicates the acoustic pressure and the consequent environmental pollution produced on the outside by the rolling of the tires. It is measured in decibels and is expressed on the label by means of three bars: one bar corresponds to a silent tire, below the established limit of at least 3 decibels; two bars correspond to a fairly noisy tire; three bars indicate a tire compliant with the directive but much louder than the others available.

The size of cars for sale in Tanzania tires is very important since the motion of the car is transmitted to the ground through them. Making a comparison, fitting car tires of the wrong size would be like running a race with shoes that are too big or too small: the control and road holding of the cars for sale in Tanzania would suffer and could face very dangerous consequences. Precisely because they are so important, the police checks on car tire sizes are becoming increasingly rigorous.

The size details of your tires can be found on the sidewall of the tire, in the vehicle manual or on the label on the inside of the driver’s door. If you are still unsure about the size of your tires, go to your nearest authorized Uniroyal dealer.