Garmin-Sharp, the American-based team using Cervelo bikes, used cameras several times during the Tour. Here's the latest offering.
We don't know about you, but our heart rate goes up just watching this video. The speed is so high, the other racers are so close and the conditions (rain, wind, corners, cobble stones) are just treacherous.
The video is also a celebration of strength and grace. Watch how the riders pedal, when they don't pedal to conserve energy, look at the positions on the bike, and watch how they handle their bikes through the challenging conditions. You can see the speed and conditions in the lower right.
That's why bike riding is so damn beautiful.