Posting this for a buddy of mine who lives in Colorado. He has a road bike and wants to ride in the winter and other crappy conditions. The frame/fork and wheels are all aluminum and pretty durable for a roadie, and he has installed the standard light set, rear clip-on fender etc.
However the bike still has the road slicks (28c) it came with, and those won't work well in really snowy conditions. The bike has clearance for a 38c tire max, though clip-on fenders versus classic mounts gives some extra wiggle room with size. Anyone here know of a good 32, 35 or 38c tire for packed snow and ice? Studded would be a nice option as well.