ive biked at about 20 degs out which translates to even lower due to self induced wind chill (from the speed) and whatever wind was already happening. just had to dress appropriately but...
link me to something scientific and don't use simplyshredded.com. Read my previous message, it answers your question. and please, stop responding like your jimmies are rustled.
C'mon man, that link is an interview with some guy and there is nothing scientific in his explanation. This is just as good as reading someone else's testimony on these forums based on their own...
