Three winters left on these tires, getting ready for the fourth. Shipov lost 10-15%, he did not notice any other special traces of exploitation. Not a single hernia, the sidewalls do not fail. They cling to any road - they don’t drag the car along the track, they don’t float when rebuilding. Passes even in deep snow, until it sits down nowhere, slows down and starts without slipping. The spikes are noisy, of course, but I feel calmer with loud spikes than on quiet frictions. These tires are by far the best in their price range.