I'm watching the Tour of Switzerland on tape delay on Universal Sports. Today's stage is an individual time trial in which riders race against the clock. (The lowest elapsed time wins the stage.) I just saw a rider going downhill in the tuck position. The motorcycle immediately behind him showed "113" on the speedometer. That's kilometers per hour, which translates to 70.2 miles per hour. Yikes! The fastest I've ever gone on a bike is (as I recall) 52 miles per hour, and that was frightening beyond belief. If anything happens at that speed, such as a puncture, well, I don't want to think about it.
Addendum: Here is video of Jon Izaguirre descending at 70 miles per hour.
