Over the course of the three week tour, riders burn an average of almost 124,000 calories- the equivalent of 220 Big Macs.
A day's race often lasts more than five hours.
The peloton has to decide en masse when it's time for a toilet stop. When it does, the entire group has to go together so that no rider is at an advantage by holding it in.
In addition to Luke Durbridge, one other rider had to drop out of stage one because of a crash during his time trial.
The 22 teams in the Tour de France go through an average of 42,000 water bottles over the course of the race.