Originally Posted by
Bob Ross
There are very few things in cycling (hell, or in life at all!) that I am dogmatic about, but ^^^this is one of those things: As soon as the temps go below 65°F I cover my knees.
My knee specialist would agree and so would many cycling coaches. The reason usually given is that the knees don't receive the blood supply that muscles do and can't tell you that they're cold and working poorly.