Wind.

[Jenn]

I won't ride when the wind blows me farther backward then I can go foreward. I have always wanted to go out and ride on those days with 60+mph gusts but they are always in the winter. So the wind chill would be horrible. I rode a few weeks ago and one of my really strong cycling buddies got stuck in a headwind that forced him down to 12mph. That type of wind likely would have had me at 4mph or less.

4MPH! Dang, that's awesome, I'd be doing....., .5 if my computer ever reads that low.