Hey all, I spent last winter working as a bike courier here in Calgary, AB and have previous winter experience. Before going for studs, try using the skinniest tire you can get on your bike, i run 700c. Basicly the skinnier the tire, the more pressure you have on that little patch touching the ground, you cut through the snow and slush and have less wash out effect. This is why they have skinny tires on the old jeeps. I've never used studs but from what I've heard and seen, you only want them on the sides of your tread to catch as the bike starts going sideways. If there's no snow and you got studs they'll tend to be a bit slippy on bare asphalt and concrete. Hope this helps!
