Hi Kai, AdamDZ, it was just below freezing point - and headwind was blowing at the greater part of the ride - I was dressed like this:
An Ultimate Bibs; a polyester mesh Ultimate sweatshirt; a pair of thin long over pants (Rogelli); a 1st layer Craft long sleeve and a Specialized jacket without a wind barrier.
Sweat like an ox as I had to work hard into the wind and the best way to overcome the cold. Still I am not quite happy with the sweat shirt - it does not wick away the sweat enough - the undershirt however becomes wet too.. Maybe do away with the sweat shirt and try an extra 1st layer that may beter control sweat wicking? Anyway, it was cold half of the ride - and when standing still at trafic lights - For the rest I tried to go as fast as possible. Under the shower I noted that my upper legs groin and belly were red from the cold. May have to shop also for a wind jacket. Thanks for all tips.