There's a long way to go to Milan but with Nairo Quintana in the pink jersey the possibility of the Colombian winning the Giro d'Italia is on the cards.
And if he is victorious on May 28, the next question will inevitably be: Can he do the double and become the first man since Marco Pantani in 1998 to win the Giro and the Tour de France in the same year?
We ask that questions and explore the physiological and mental barriers that may be in the way.
Kilometre 0 is supported by Allpress Dalston.