Levi Leipheimer -- Base of the first switchback. Alpe d'Huez TT. TDF, 2004
Jan Ulrich -- trying to spin a monster gear.
Lance Armstrong. Spinning a much lower gear.
If you watch coverage of this on TV, the aerial footage shows Lance suddenly looking left at the crowd as he chases Ulrich down. There is much speculation as to why a guy, who is always so focused, would be so easily distracted. I was standing with a group of people we had been traveling with including a well endowed blonde. She denied it but my guess is she flashed her melons. That's my theory and I'm sticking with it.