I've been off the bike for 6 weeks and today was my first to ride again. I did 13 miles and also noticed my speed much slower than during the summer. So the winter might hamper an individual's performance this time of the year. It was sunny, in the low 40's and no ice/snow on the road and MUP so I took the opportunity to get on the saddle. It felt great that I wanted to ride again tomorrow if the weather cooperates.