Stage 8: Riders ready to turn up the heat

"Slow through the flats, and fast in the mountains — that's just what some riders are predicting as the Tour de France enters the Alps.

Belgian Tom Boonen won the sixth stage Friday, ending a crash-prone and unusually slow first week in which sprinters ruled and two potential title contenders were injured.

Burning thighs and heavy breathing await as riders embark on three days in the Alps, starting with the 122.7-mile course today from Bourg-en-Bresse to Le Grand-Bornand.

"You watch, it's going to be ... fast this weekend," said David Millar of Britain. "Whenever you get into the hilly stages, everybody will want to go out on the break. No one has wanted to go this week."