Stage 20 will now be held over a 210km route from Silandro to Tre Cime di Lavaredo. The Passo Costalunga, Passo di San Pellegrino, Passo Giau have all been cut from the new route. The climb of the Passo Tre Croci remains, along with the final climb to the finish.
The original route was 203km and included four high passes before the finish at Tre Cime di Lavaredo. With temperatures close to zero and the peaks covered in snow a new route became essential.