Now it gets fun:
With three big climbs and a mountaintop finish, this is a huge chance to shake up the GC classification. The climbs aren't the steepest we've seen, but they are very, very long.
First, there is the Col de la Madeleine (HC) - 25.3 km long (15.7 miles):
Then, following a rapid descent, the Col de la Croix de Fer (HC) 22.4 km (13.9 miles).
After a comparatively short (5.7 km = 3.5 miles) climb up the Col du Mollard (Cat. 2), comes the finale - 18 km (11.2 miles) up La Toussuire:
Altogether we are looking at 44 miles of climbing slopes of over 6% gradient. A successful attack could be very successful, timewise (or it could spectacularly fail).