I know what you mean about not bad for Eastern Colorado in December. I was watching my New England Patriots play the Bronco's on Sunday and they said the temperature was like 62 degrees in Mile High Stadium ( Sports Authority I think it is now), and I was thinking, wow that's pretty warm! Here in Massachusetts it was in the 40's!! :-( Enjoy it while you can!We got the bike out both last weekend and this weekend. Not long rides, but enough to get the fluids circulating and keep everything moving. Not bad for Eastern Colorado in December. Temps were in the high 30's with some ice still on the road in shady spots.
I do not winterize the bike. I will ride some every month of the year.