After purchasing it and putting approximately one thousand kilometers on it in the first season, there was just one spike that protruded from the front drive wheel. During the second season, it became apparent that there were significantly fewer spikes. The level of manageability has decreased. We've decided to switch things up while there's still a chance they can be sold. Various advantages: Resistance to tread wear and tear First year managability required Not a single hole out of fifty thousand. Having these drawbacks: After the first season, spikes started falling off, and now, four years later, there are just 30 percent of them left. Having been buried by the snow