The first option for which you need to decide – this size tire. In the service book to your car must be specified size, which is best suited to your vehicle. Given that many manufacturers recommend that operate in the summer of rubber with a wider profile, and in winter with a more narrow, in the service book may be multiple types and sizes. We do not recommend to put the rubber to the other sizes, as Automakers had the car in different conditions and choose the best size tire providing the most secure mode of operation of the vehicle. Rubber recommended sizes imeeet a circumference of the outer diameter, and if you put another tire size, it will lead to distortion of evidence odometer and speedometer. Depending on conditions, which will used tires, choose their seasonality and the tread. On the seasonality of their share in the summer tires, winter tires and winter tires.
You should not exploit winter tires in summer, because it at high temperature become quite soft. This rubber in summer is subject to rapid wear and do not provide a safe mode of operation of the vehicle. Summer tires in winter is very hard (dubeet) and does not provide a good traction. In summer, rain, when driving at high speed the car can become unmanageable because rubber as it starts to slide (drift) on the surface. This phenomenon is called hydroplaning. To To avoid this problem, cause the rubber slats (groove) of special shape that can effectively expel water from the wheels.
Very often there is an appropriate marking rubber Rain – 'rain', or Aqua – 'water'. It should be noted that if there is no such markings, it does not mean that this rubber not be operated in the rain. In winter, the problem for drivers create snowy and icy road sections. Cars similar to sites become plohoupravlyaemymi, which can lead to a crash. Solve this problem as follows: for winter tires make a rough tread pattern and often equipped with spikes (spike tires). On such tires there is a corresponding marked M + S (Mud + Snow) – 'mud and snow' and / or Winter – 'Winter'. Some manufacturers make all-season rubber, which is suitable for use in winter and in summer conditions. But as a rule, it is inferior to operating characteristics of specialized rubber and is a compromise for the lazy. Such tires more difficult to manufacture and, therefore, is much more expensive than seasonal. Sometimes the rubber meets the inscription All season – 'All Seasons' or All weather – 'Any weather'. When buying, be aware that, perhaps, this rubber has been released for hot countries, where the winter cold are kept at around 0 C and, of course, for our winter tires this is not appropriate. Make sure that When you buy a rubber meets the international and Russian standards. Rubber, certified, has a label on yourself E (indicating compliance with European standards), or marked DOT (that evidence of compliance with U.S. standards), and sometimes both of these markings. Regardless of the international certification of all tires sold in Russia must have a certificate of conformity issued State Standard of Russia, which conducts its own tests. The certificate must show the seller the buyer on demand.