240km of getting it done and avoiding the loony Italian pro conti teams. Then the real stuff starts. Poggio is crucial, top that with 45 seconds and there's just a chance... but apart from that, if Cav gets over it and down the other side near the front, it will come down to him versus whichever sprinters are left. Only thing to spoil the party might be Sagan going long (see comment about Poggio). All I know is it's bloomin' hard by then. Nearly 300km is a long way!
In days of old, it was even madder, sometimes up to 350 starters, with every local no-hope team trying for their 5 minutes of glory. If you think the crashes are bad now, it's nothing compared to what happened back then.