Originally Posted by JPprivate

I think you're really on to something here. I'm usually in one of the highest gears, but today at 5 F I was in the middle ring in front in one of the lower gears (back) and I was hurting to get some kind of speed going. Not fun. Very weird. Yesterday the same thing, in the morning it was cold at 9 F, but the afternoon was just fine with 29F, had a good speed and everything.