My coldest ride of the season so far, in the mid 30's, ski goggles and all. I rode SLOW for me. 16 flat miles in 2 hours, a slow record for me. Wind/cold, and not in summer condition. I didn't care. I was outside, feeling my quads, and hope to keep this up through the winter. Summer on my lighter bike, I average twice that speed, for twice the distance. So, I try to ride fast in groups. Guess I'm ok with fast, and slow.