I'm starting my third winter with the Hakkawhatever 106's, no complaints so far and no trouble with wear. They work great for dealing with black ice, which was the reason I purchased them, since most of my ride is on plowed roads. However, they're not going to work magic on thick ice sheets, especially bumpy, thick ice, as I found out to my dismay/pain last winter on an unplowed trail going under a bridge that dripped lots of water.