20th year 40 week rubber release purchased. reacts nicely when on asphalt. I went to the dacha for m2, but after the first snowstorm, I was unpleasantly startled. When barely changing lanes, the automobile started to drag. One little snowy ledge has accumulated between the rows. Speed 70-80. turns out to be highly unpredictable. There weren't any such issues before there was a yokagama. Really unhappy with this tire.