Great ride home today. The morning ride was a little sketchy because my rear derailleur/brake system was still frozen solid from the ice fog yesterday. I had to make do with a 2-speed and only a front brake. When I started out on the PM commute, it kept shifting back and forth between 2 gears like it was possessed until eventually it settled down and went back to normal.
How do you guys in cold places deal with this problem (aside from storing your bike indoors)?