size 52 this US postal Trek will be sold with a Campagnolo record crankset which is not on the photos. Trek Bicycles became the first bicycle manufacturer outside of Europe to win the world's most prestigious cycling race, the Tour de France, with the triumphant performance of US Postal Service leader Lance Armstrong. Armstrong and his relentless teammates race on stock Trek 5500 OCLV Carbon frames, making them the only Tour de France team to race on frames identical to those available to consumers around the world. Using Optimum Compaction, Low Void (OCLV) technology, the 5500 was the lightest production frame in the world, weighing in at 912g. Thanks Bicyclehuntercotedazur.