Okie Dokie.......The Schwalbe is on the left. I still have it's mate on the rear wheel and it works quite well there. The IRC is on the right and currently mounted on the front of the bike. It's a very aggressive tire and the sheet metal screws help fight slippage a bit. The IRC is about 20 years old and I don't believe they're available any more.



EDIT: The sun is shining, the major roads are down to bare pavement, and the daytime temperatures are forecast to be above freezing so the Schwalbe is back on the front again until the next significant snow event.