I ride skinny slicks in the winter. I have a set of Innova studded tires on my 'snow' bike, but they suck. Only good for times when there might be ice under hardpack or powder snow. Just awful in anything soft or loose, the slicks are way better. Some people swear by knobbie tires, but I prefer slicks. For days when the slop on the edge of the road is still icy or might be I use the snow bike, as I find the studs are a help. Having never used a good set of studded tires I have no comparison to the Innovas.