Originally Posted by
velonista
As long as you dress right (
meaning: in layers), and are constantly pedalling for the full duration of your commute (
at even a moderate rate), then the metabolic process of
the Krebs cycle will produce more than enough internal heat in your core to keep you warm (
sometimes even TOO HOT!) regardless of the outside temps.
Or, in layman's terms, you'll cool down the first 15 minutes, slowly warm up the next 15 minutes, then spend the rest of the ride being comfortable*.
*Provided you're dressed appropriately in wicking layers and you keep pedalling as mentioned by velonista.