100 Years of Tour de France Bikes Map the Evolution of Cycling

There are few professional sports as closely bound to technology as cycling. A bike isn't just equipment, as skiis or a tennis racket might be—it's a partner in a symbiotic relationship between the machine and athlete. And it's remarkable to see how drastically certain parts of that machine have changed in the last… » 7/09/13 9:00am 7/09/13 9:00am