Coldest I've ridden in yet. Started out a little under 10 F and probably went below zero before reaching the office. When I rolled in 50 minutes after leaving the house, my right foot was just starting to feel cold and I had an icicle hanging from my glasses to my right cheek!

The cold had a negative effect on my headlight battery too, showing a low charge indication only 25 minutes after leaving the house with a fresh charge. It ordinarily shows up halfway through the ride back home. Still, it lasted almost the whole ride back and shut off completely just as I was entering my street.

I was glad to have a new homebuilt light on my helmet for the first time today and it was amazing: brighter than my NiteRider MiNewt X2 Dual on the bars and longer lasting.