There's a guy at my office who rides a motorcycle and he asked me if this was my "winter bar."
I got a quizzical look on my face and he told me he hardly ever rides his crotch rocket in winter. He doesn't like getting into a tuck with all the extra layers on. He tends to ride his Goldwing in winter, (I know if I had a Goldwing sitting in the garage, you'd be hard pressed to ever get me onto a rocket bike).
I told him I hadn't thought in those terms before. However, the discussion did get me to take another look at my riding habits. I do tend to stay upright more in the winter. Maybe it's the extra clothing or the wind blowing down my shirt. It might just be that the cold air makes me "stiffen up" and not want to stretch out. I'll probably not be making seasonal bar changes, but it is an interesting thought.