Thanks guys. I knew that wouldn't be my last question. I can also get these for a similar price but I'm not sure if they would be overkill. Like I said before its mainly going to be compacted snow/ice for most of the months with a few inches of fresh dry snow on top some of the mornings. Would these be better than the marathon, I'm more concerned with safety than speed

http://www.chainreactioncycles.com/mobile/ca/en/schwalbe-ice-spiker-pro-winter-tyre-raceguard/rp-prod123204

Thanks