For 1 season, enough snowy winters, 30% of the spikes on the drive wheels fell out, on the rear, almost all are intact. And this is in conditions of almost ideal operation. I carefully ran around, carefully drove, but in the end I was still left without a bunch of spikes. Absolutely without grinding on asphalt, of course, it could not have done, there is no getting away from this, but I tried to minimize it. As a result, I regret that I did not take Michelin or Hakkapelita.