i dunno. i don't think i have a fast to go slower-than never done this ride on a hot or even a warm day either. but for the limited meaning it has, i think i'm actually finding the opposite is true: i seem to be doing better and feeling stronger (so far) now that the temperature is consistently below 5 celsius. i have quite a lot of trouble with random inflammation, so maybe the cold keeps it under control for me or something. this past week is the first one for a long time that i haven't woken up sore. it's too bad i hate winter.

doesn't it take more energy just to keep you warm when the weather is cold? that could be why it's harder to add exercise on top of it.