"Wow. 34K in a -25 celsius**********? Daaaaang."
Did somebody say Winnipeg?
I'm using the only knobbys I have in the shed right now; a Trek Connection pair gleaned from a bought parts bike. They seem to have a decent soft rubber compound and tread pattern similar to a Kenda Alpha Bite. Was out yesterday in them on slicker surfaced roads, but not ice. Not too bad so far. Will switch over to studs in full blown winter if necessary.