Thermal Snow Tires
The security that our car can offer us in the winter, especially when the road is covered with snow and ice even worse, depending on the type of tires. These phenomena atrosferici reduce adherence and may cause confusion. To avoid this you can mount chains or snow tires known as “thermal“.
To avoid taking risks and have accidents, we recommend you use one of these two systems. Chains (see our guide specific depth) can be used only when there is snow on the road and need to be mounted every time.
The tire temperature, or more technically winter tires are mounted instead of the tire in winter BEGINNING and disassembled at the end of the bad season. The wheels are different from traditional winter because their compound contains a high percentage of silica, which allows better adhesion to the asphalt at low temperatures, around 6 or 7 degrees Celsius. The silica compound that participates in winter makes the wheels of rubber “tenderness” adequate to be able to hold the road better.
Obviously not all winter tires are the same: the best ones are marked as M + S are the initial letters of the words Mud + Snow, that is, mud and snow, they are more suitable for rough terrain and uneven. In addition to this symbol is also accompanied by a mountain logo of a snowflake, that indicate the adaptability to the mountain roads. Tyre also stated that the width of the tire in millimeters, for example 205, the rim diameter in inches, such as 16 and height of the side in relation to the width in mm, for example 55.
Knowing these numbers is impotant when you want to buy winter tires because we have to stick to those parameters, reported on the logbook. Under the law the tires heat are equivalent to chain down the street so if you encounter a sign that forces us to travel with the snow chains can be sure that the tires using thermal salata.In fine not risk any more than the tires can also be used on thermal ‘dry.
There are other tires depending on the season: the summer and winter Run flat. Being equipped with a reinforced rubber side wall, the Run flat, enabling it to walk even if you pit eto 100 km at a speed of 80 km / h, in order to reach the nearest tire shop.
Tires M + S
Winter tires are classified at the international level with the initials M + S as we have seen means Mud and Snow, that is, snow and mud. Which are composed of silica allows the tires to remain soft even at lower temperatures, so that the grooves attraversnao the tread blocks, can take the snow and make it compact between the road and the rubber.
In case of snow these tires put in place mechanisms to operate differently depending on whether this snow or ice. If the snow is fresh, the strong pressure exercised by the aggregation of ice crystals making up the snow and the rubber can be taken on the road because the snow is in contact with more snow. If on the road instead of this ice, it triggers the action of the blades of the tires, the tread this warming, cause a temperature difference between ice and air, creating an adhesive effect. To be clear the operation of the rubber on ice can be useful to touch an ice cube with one finger, which will produce the same effect. At this point, many will ask what are the differences in structure between the normal and winter tires. Well, certainly a substantial difference lies in the design and tread pattern.
Consider the other components of tires. In addition to the strip which we have already seen what we are and what they are crossing the tread grooves and create designs swept wave or winter, unlike those of summer tires that are narrower and shallower. In most winter tires have a compound composed of silica, which, as already stated, in order to keep the soft tires, even at low temperatures, mixed with the rubber.
As for the drawing you must be careful upstream in a possible direction of rotation, ie all four wheels must be set in the same direction and must coincide with the direction of travel. Do not be alarmed, it is not difficult to mount because everything is fully explained in the instruction booklet supplied and should be read carefully before installing. Once installed you must make sure that the pressure is greater than 0.2 bar above the normal range. In the spring when we take, we must take care to keep them away from direct sunlight and in cool places such as cellars and if you wash them before putting them away is even better.