Plenty of riders will have spent a nervy rest day contemplating this extraordinary mountain time trial. It starts easy enough, ramps up towards the Passo Furcia, then takes off on a hard-packed dirt road towards the summit. Sections of 20 and 24 per cent slow riders to walking pace and ensure the massive crowds can clearly see the toll it takes on them. Many of them will no doubt be hoping that adverse weather leads to the stage being shortened and finishing on the Passo Furcia as was the case when the Giro first came this way in 2006.
Vertical climb: 1,080m
Highest point: 2,273m
Terrain: High mountain
Category: Individual Time Trial