Adding to his stable of artist customized bicycles by the likes of Shepard Fairey and Kenny Scharf, Lance Armstrong rode a new Trek time trial bike designed by Marc Newson for Saturday’s start to the Tour de France. Later in the stage race, the pro twittering cyclist will also be riding bikes customized by Yoshitomo Nara and Damien Hirst to help draw more attention to STAGES, the anti-cancer art show opening in the midst of the Tour at the Galerie Emmanuel Perrotin in Paris on July 16th.