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Trust but verify

Expert Advice.
Today it is no secret that for traffic safety in the winter need to change summer tires for winter. Install winter tires on vehicles with a special tread pattern, whether with anti-skid spikes (studs) or without (studdable) avoids slashpleningu - temporary interruption of the tire contact with the road. This winter version of hydroplaning occurs on icy or snow-covered road in any sudden steering or braking, cornering, turning with a small radius of curvature at high speed. And as a consequence - car skid, reset it to the path of movement, loss of the ability to inhibit, leading to an accident. Useful tips on choosing and operation of winter tires provides an expert in tires and rims of the Ural center of expertise and conformity assessment in road transport VALERIA Savosin.

It is desirable to have two sets of wheels - a summer and winter tires. First, it allows you to avoid the queues on installation and balancing. Secondly, each "perebortovka" for tires, tubeless especially, it does not pass without leaving a trace.
In our stores studded tires come in two types. The first - that were studded by the manufacturer of the tire, for example, fall into this category Nokian Hakkapeliitta. The second type - the tire, which oshipovka carried out by third parties. More trust, of course - to the manufacturer.
When buying studded tires, check with your fingertip to touch, whether from the tread elements are the thorns. Norma - 1.5 mm. If it is less, do not buy these tires. It's a waste of money. To sense from this will not be studded.
Attempts to use studded tires only on the leading axis - it psevdoekonomiya. When you install winter tires only on the front axle traction on the rear axle is significantly less than on the front. As a result, there is a risk of skidding (rotation) around the front axle of the car.
When installing studded tires only on the rear axle also appears unbalanced tire grip force of the front and rear axles, and, as a consequence - the risk of skidding when cornering.
New studded tire, the studs got used, you need to break in at a speed not exceeding 60 km / h over a distance of 500-600 km.
Remaining tread depth on winter tire must be at least 4 mm. Also, the tire becomes ineffective at loss of 25% of the spines. This tire should be replaced.
If you really want to save, you can extract from it the remaining spikes, and it you still will serve as summer tires.
No matter what category the speed indicated on the tire, the maximum speed for a studded winter tire is 130 km / h. Exceeding the speed limit leads to a rapid loss of spikes. Furthermore, at higher speed studded tires do not provide the expected security and lose their effectiveness.
At low temperature, tire pressure registered by pressure gauge, may be lower than it actually is. If, for example, at a temperature of 18-20 ° C the tire inflated to 2 atm, then at + 8 ° C 1.9 atm gauge reads. You must take this into account in the measurement of the winter tire pressure.
Also, while driving in the winter take note that an icy road:
- 2 times more slippery than the road, covered with snow;
- 4 times - the wet or covered with melting snow;
- 8 times more slippery than dry.
And again, in recent years, many drivers who drive on studded tires, began to ignore the installation on the rear window of the car, "Spikes" identification mark. Although a violation of traffic rules is not threatened with a fine to the driver - in the Administrative Code for it is not provided no responsibility - it threatens your safety. The length of the braking distance studded tires on snowy roads is less than in the summer. And there is always the risk that when braking into your car vedut behind.