Longer than last year , the teams will be cycling 3,519 km over 21 stages in the 103rd Tour .
Teams starts this Saturday , culminating in a pleasurable cycle up and down the Champs Elysee on July 24 .
Longer than last year , the teams will be cycling 3,519 km over 21 stages in the 103rd Tour and it starts this Saturday , culminating in a pleasurable cycle up and down the Champs Elysee on July 24 .