The issue of choosing car tires every year arises before each car owner. Many follow the advice of acquaintances, someone prefers to make a purchase on their own. This article will help ease the torment of your choice.
First you need to determine the seasonality of the tire. It is necessary to strictly observe this parameter and "change shoes" the car in tires recommended by weather conditions. Wrong choice cannot fully guarantee the behavior of the car on the road, and therefore your safety.
Then find out the size of the tires you need. The required value can be found either in the technical passport of the machine, or on existing tires on the side. Next, you need to figure out where you plan to ride. If you are an average city dweller who occasionally travels to a picnic or cottage, then universal tires are perfect for you. In case you are going to ride on difficult rough terrain, you can not do without off-road tires.
The speed index is another important indicator that determines the maximum speed allowed for each particular tire. In addition, it is also a symbol of the group. In the modern world, there are many different cars of various classes, ranging from relatively slow-moving oldtimers to Formula 1 racing cars. The speed index determines which tire can be used with a known amount of permissible loads. In addition, there are several unspoken rules associated with this parameter. For example, a car can reach a top speed that is 10-15% less than recommended. The speed index (t, for example) shows the maximum allowable speed that the tire can withstand at normal load values. Exceeding in this case will threaten tire failure, which is more than unsafe. Long service life can ensure proper and careful operation of tires.
The index "speed index" has several features. For example, the manufacturer stated that the maximum permissible speed for this tire is 180 km / h under normal load. This means that a short-term excess of speed up to 200 km / h will not entail serious consequences. Only prolonged wear at high loads can lead to overheating of the tire and its destruction.
The tire speed index is determined as follows. The tire test sample is tested on a special bench by changing the power and speed load indicators. After a large number of measurements, the processing of the obtained data takes place. Then the average permissible speed (for example, 240 km / h) and the corresponding speed index (v) are displayed.
The value of this parameter, recommended for a particular car, could previously be found on the side of the tire along with other important and determining indicators. Now, manufacturers prefer to enter this kind of data in the technical passport of the car.