Dress for the cold and it isn't that bad. Fleece pant and coat over a fleece shirt. Balaclava, warm gloves ( work gloves) wool socks and i have not been cold, lately it has been averaging -25. Even today I was sweating when I got to the office. It is amazing how much harder it is to pedal ( a bike just does not work well ) at these low temps.
Lucky it is my old GT Avalanche mtn bike. I will definetly need an overhaul in the spring.