Back in 2005, when Lance Armstrong was driving home his 7th consecutive Tour de France, I felt compelled to buy my own Trek road bike, complete with Team Discovery Channel paint scheme, and hit the road. Between that summer and the next, I rode approximately 1,000 miles, lost 15 pounds, and found myself with a resting heartrate of 38.
Although the footage on VS. of the TdF was compelling, what really, honestly, pushed me into bike ownership was the following video. If you can stand it, turn your volume up, Chemical Brothers' track "Acid 8000" seems as if it were custom written exactly for this video clip.
When Lance makes the infamous "look back" at a heaving Ullrich 2/3rds of the way up the Alpe D'Huez, it was the shot heard round the world, in terms of cycling. It was the "I just want to let you know I'm about to crush your spirit." Lance, simply put, was dominant.
Another video that I find inspires me before I exercise is this gem from Nike:
I have Acid 8000 on my mp3 player, and occasionally, when I'm riding, I flip to it, channel Lance, and hammer my pedals.