Pilates at 5 am?! The only thing I do not absolutely love about cycling is that centuries start sooo early in the morning. Not a morning person does not begin to describe me. ;-)

I used to do a full regimine of stretching before getting on the bike. I've read that stretching cold muscles is not good. Now on longer training rides I do a few light stretches, just enough to stop the creaking and cracking and get on the bike and spin for the first 4-5 miles, then get off and do a few more.