Pros also get their chains changed as frequently as they want. I doubt any pros are riding 2000 miles per chain like plenty of amateurs do. Also the biggest p

Pros also get their chains changed as frequently as they want. I doubt any pros are riding 2000 miles per chain like plenty of amateurs do. Also the biggest pro I've ever heard of is Magnus Backstedt at 6'4 and 207lbs. He's a GIANT compared to everyone else on the pro tour. "Big" Tom Boonen only weighs 180lbs and Lance Armstrong was 165. Pros have really good power for their weight, but in absolute numbers the power isn't that excessive. If you want to see people who are tough on gear, you have to look at track riders. That's where a 1400W rider isn't anything special and 1800W+ starts to become impressive. Also since they're on single gear bikes the torque they put down at low speeds to accelerate is absolutely insane.