Wow all I can say is that looks so dangerous, never in a million years would you find me outside in that!! It did however make a very entertaining YouTube Video. I'll be the one on the couch watching you tube with my pizza in that weather.
I do have an uncle who lives in Telluride, biking was his only transportation by choice for over 20 years. He also rode competitively and did mountain biking. I'm sure snow+ice+mountain+highway was just part of the norm.
He used to do the craziest stuff. If only they had go pros back then....