Arrival of winter for motorists is not only snow and a frost. This also immemorial turmoil – preparation of the car for an adverse season.
The car on the snow-covered road will keep how surely or at ice, will depend in many respects on winter tires. Of course, it is possible to spend all winter and on , but thus risking also own car, and constituting danger to other participants of traffic. At the same time various models of winter tires absolutely differently behave in these or those conditions. To be defined, stop the choice on a concrete set of winter rubber quite not easy. Often, to understand that it will be better for you and your car, it is necessary to rely on long-term experience and to acquire already proved production. Especially as the choice of winter rubber depends on the weather conditions prevailing in your region. Therefore unambiguously to tell that some one winter tires is better than others it is impossible. But nevertheless some general recommendations about a choice for your car can be made.
Studded or not studded (frictional)
Concerning that to take studded or not studded rubber for the winter, the answer is ambiguous. From the theoretical point of view thorns have to provide higher coefficient of coupling of wheels with the road that is especially important in ice. But sometimes not studded behaves on the slippery road much better than studded models of tires. In what business?
The behavior of the car on the road depends not only on existence/lack of thorns. The defining factors are also the chemical composition of rubber, protector drawing.
Let's try understand, what it will be better in specific conditions?
Snow winter tires
In the conditions of ice or nakatanny snow by means of thorns the increase in coefficient of coupling of winter tires with the road is reached.
There are two options: or you get at once snow winter tires, or make an oshipovka of usual winter rubber. It is clear that the more will be thorns on the tire, the car will be better to behave (the brake way will be reduced, the probability of pro-slipping will decrease). And for bigger efficiency thorns have to settle down not on one line, and are chaotically scattered on a tire surface. Only remember that it is possible to oshipovat not each rubber – specify this question with the seller.
From import snow tires on the slippery road well proved the Nokian Hakkapeliitta model. Their feature (since the fourth model) that thorns in section have square section, but not round as at others. At the expense of it the best quality of coupling with the road is provided. The latest model of 2006 under an index 5 depending on a necessary standard size will cost to you from 100 to 450 c.u. for one tire.
Not snow winter tires
At a driving on deep snow influences controllability of the car not only existence of thorns, but also drawing of a protector of winter rubber. As a rule, winter tires with a set of the rectangular checkered pattern located in chessboard order are most effective. It is important as well drawing depth – at the majority of models makes this parameter from 9 to 10 mm. Coupling with the road is influenced also by existence of small strips (lamels) on protectors of tires. At the expense of them and snow, not snow winter tires hold the road better.
On your roads the most part of winter the sleet lies or even is absent at all, then it is necessary to reflect on purchase of not snow winter tires. First, thorns will be ineffective at dispersal and braking on the asphalt road. Secondly, because of thorns the spot of contact of a wheel with the road that leads to reduction of coefficient of coupling and, as a result, controllability deterioration by the car decreases. Thirdly, at a driving on asphalt snow winter tires will be an additional source of noise.
On what to pay attention at a choice of not snow winter tires.
On a sleet the best behavior of the car is provided by rubber with the directed drawing of a protector which promotes removal of slush from under a wheel. Drawing of such winter tires is similar with summer rain in which the structure of a protector reminds a fir-tree.
Among not snow winter tires Continental ContiVikingContact3 are considered as one of the best. The price of these tires lies within 75 to 210 c.u. – everything depends on a standard size for your car.
General recommendations about a choice of winter tires
Winter tires on average serve 2-4 seasons. When they are used up – depth of a protector becomes less than 4 mm – the time of their replacement comes.
The composition of rubber mix for winter tires is selected in such a way that the wheel as if "sticks" to a slippery covering. Therefore softer winter tires are suitable for a driving in snow-covered conditions or at ice more. On an asphalt covering in winter time soft tires will be also effective, but wear out quicker – are necessary more solid rubber. To the touch it is heavy to define this factor, but concrete the seller can advise something (on the basis of responses of buyers).
Winter tires with asymmetric drawing of a protector appear more effective often. Thus, for example, the external part of the tire is responsible for the movement on an asphalt covering, internal – on snow-covered. It is necessary to install only correctly such tires according to the marking put on it.
Size of winter tires
The sizes of winter tires (however, as well as summer) it is worth choosing that are recommended by car maker. If to take much more on width, the spot of contact of a wheel with the road, naturally, will increase. But thus the mass of the car will be distributed in such a way that coupling of the tire with a surface of the road will decrease.
If there was no necessary size any more, it is better to choose as the little model of winter tires, smaller on width, but thus big on profile height.
Operation of winter tires
Many "put" on the car in winter tires only after loss of the first snow and emergence of ice on roads. It often becomes the reason of increase in number of accidents at the beginning of winter. It is generally recommended to change rubber on winter already at a temperature of 7 degrees.
And winter tires as studded, and without them demand careful operation on the first several hundred kilometers. The running in without sharp braking, with smooth dispersals and accurate entries into turns is recommended in order that tires kept the properties for long time. Especially it will affect that, thorns in rubber how many will hold on.
Interests many, whether it is possible to put winter rubber only on driving wheels and thus to save. Such decision will affect behavior of the car, but not always in the best way. Naturally, at start-off from a place noticeable change in a positive side will be felt, but in behavior of the car on the road there can be some unpleasant moments. For example, on rear-wheel cars when braking weight is transferred to forward wheels, as a result, is profited from winter rubber on back wheels is small. Or at an entrance to turn the car with with studded rubber only back wheels on the ice-covered road it will be also bad to answer the helm. And such problem also front-wheel cars are not deprived. Winter tires only on forward wheels will allow to start quicker. But when braking and even when dropping speed back wheels will start to skid. Therefore if to buy, already complete set of winter rubber. Of course, if to maintain quiet rate of a driving, in principle you can not feel differences. But in unexpected situations (the emergency braking, drift) your car will keep more surely on the road at a complete set identical winter rubber. And it will be easier for you for them to operate that.
If you buy studded winter rubber, but because of changeable weather the car should "expel" on asphalt, it is necessary to operate the car more accurately. Sharp start and the emergency braking are inadmissible if do not want to lose all thorns for once. Also do not forget to paste a sign "Sh" on the car – other drivers will mean that you will have shorter way of braking, and, respectively, will hold a big distance.
And in summary, it would be desirable to advise firms which winter tires not bad recommended themselves. Among the Russian firms it is possible to look at winter tires Amtel or RY (Red Yar), import is Nokian, Michelin, Continental, Pirelli, BridgeStone. On the Russian winter tires it is quite possible to otjezdit couple of seasons, import "obuvka" though is more expensive, but can quite be in operation twice more long. But also it is possible to buy winter for 60-90 c.u. for a wheel. The cost of analogs of import production begins from 100 and up to 500 c.u. for the tire. It, of course, does not mean that domestic rubber is worse import, the developed myths about quality of the Russian tires are unjustified. Therefore it is possible to give preference to some concrete brand, but at the same time not to refuse a purchase of the obuvka made at plants of our country.
For the rest, the choice depends only on you!