
While most people may think of the physical design of the winter tire, its chemical makeup is just as important. Because cold temperatures make everything stiffer and more likely to crack, winter tire material must counteract this by being more pliant as temperatures drop. While this is useful in subzero temperatures, the same property becomes a liability in the summer, when the warm temperatures make winter tires sluggish on hot roads.
The pattern of winter tires, with their grooves and nubby texture, make them perfect for driving in snow. In the summer, more contact with the road's surface gives better performance, meaning that winter tires will reduce your response time when braking or cornering.