Yeah, so what? On a bicycle is what. I've been watching the Tour de France. On the descents they are up to as much as 72 mph. On a bicycle! On a tire about 7/8 of an inch wide. I've done 34 mph on a bicycle and that seemed fast so I can't imagine 72. 2,115 miles by bicycle in 3 weeks with 3 days climbing mountains in the Alps. That is some kind of physically fit.