I avoid
Mt Washington in the winter.
On January 16, 2004, the summit weather observation registered a temperature of −43.6 °F (−42.0 °C) and sustained winds of 87.5 mph
It's not too bad on the climb, but I just get too cold when bombing the descent.
"I didn't have any tires on the bike at the time, only naked hoops. I'm that good."
I guess you file the edges of your rims to grip the ice better? I'll have to try that.