Glad your enjoying the winter riding. I have the Nokian W106's on mine and these are very good on black ice or icy pavement. Pretty good in the snow too as long as it isn't deep. Deep snow is just too much work to make an efficient commute. I enjoy riding snow on weekends just duffing around. They are definitely slower and rolling resistance is huge so take it easy and enjoy the slowness instead of trying to keep up a fast pace.