I tried riding to work yesterday after we got 8" of snow(a LOT in Alabama!) I don't have knobbies or studded tires(Michelin Country Rocks), and failed miserably. The tires kept slipping from side to side through the humps of mush, and I kinda wrenched my knee a couple of times catching myself before I turned around and went back to the house. But doggone it, I tried! I have even more respect for northern commuters now!