I do ride all through the winter. We normally don't have too much in the way of snow and ice here, especially by comparison to Ontario!Maybe a storm or two of note each year (i.e., more than a dusting of snow), give or take, and some winters pass w/o any snow or ice at all lately.

I haven't bought studded tires yet, though this past winter's blizzard extravaganza, which shut down bikeable routes for a couple weeks in February, has me thinking I may try to get a set for this winter. If nothing else it should ward off the winter weather (the same way that having an umbrella with you keeps it from raining).