The most important thing in the tires is, of course, the depth of the main tread grooves, which according to the new Road Traffic Act must be at least three (3) millimeters.

Video above: Changing the tires at the front - this is how you avoid mistakes.

- Proper tire performance has a major impact on road safety.

In addition to the tread, attention should be paid to the age of the tires and the number and condition of the studs remaining in the studded tires.

A studded tire is the safest option on an icy road, but with friction and intermediate tires, you can start the winter tire season more flexibly than the studs in late autumn.

The intermediate tires do not hold up as well in winter conditions, and I would not recommend friction tires for a car that does not have a stability control system, says Tapio Heiskanen, the liaison manager of Liikenneturva.

  • Read more: What kind of winter tires should you choose specifically for an electric car?

In general, the grip of studded tires is at best relative to wet smooth ice, where the grip of the rest of the tire's contact surface is at its worst, i.e. the studs are quite crucial for grip.

According to the new Road Traffic Act, the permitted service life of studded tires starts now from the beginning of November and lasts until the end of March.

At other times, studded tires may still be used in special situations if weather or weather conditions so require.