Winter tires have different physical characteristics than summer tires. Here are three of them:

The grooves in winter tires are about 30 % deeper, and grip more firmly, than those in all-season tires.

The design of the tire’s surface ejects snow more effectively.

The rubber used to make winter tires is softer, and therefore more flexible and effective in cold temperatures.

The rubber in four-season tires tends to harden when temperatures reach -8 to -10 ºC. From -15 ºC., it loses elasticity and traction. Winter tires only begin to lose elasticity when temperatures reach -40 ºC. A big difference!

Why remove Winter tires?

Since winter tires are softer, they will wear more quickly as temperatures increase over the freezing point. Check with your local weather conditions to determine the optimal times to change back to summer tires.

Winter tires should be installed once the outside temperature goes down to 7 Celsius or 44 Fahrenheit.

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