Saturday, July 25
Modane Valfréjus to Alpe D’Huez (110.5km)
Having already ridden up the Col de la Croix de Fer on the previous day’s Stage 19, the riders will no doubt be dreading another ascent up the same mountain, only this time from a different direction. After that, the peloton will head towards the Tour de France’s most iconic battle ground in the form of a summit finish atop the Alpe d’Huez and its infamous 21 switchbacks. It’s here that the overall winnder will be crowned.