Here's a link that has more info on the bike. The claimed weight for a M is 20.7lbs, mine is a L and weighed 21.8 with pedals at the shop. I've removed the tubes which were around 8oz which should put me at around 21lbs even, I haven't taken it back to the shop to weigh it again.

http://www.cyclingnews.com/tech.php?...es/gt_launch07