While you catch-up on todays stage of the Tour de France courtesy of Outside Magazine, keep in mind that tomorrow, everything changes. Thus far the stages have been relatively flat, favoring the sprinters, with a couple of time trials mixed in. But the race will be won and lost, as always, in the mountains. Tomorrows stage moves into the Pyrenees with several big category 1 climbs, including one that is nearly 20 miles in length. Then on Thursday, the stage gets even tougher yet.