The Trek Bicycle Corporation is a major American bicycle an bicycle component manufacturer. Trek's high-end bicycles (such as the Madone road bike, ridden in three of seven Tour de France victories by Lance Armstrong, and Fuel mountain bike) are built at Trek's world headquarters in the town of Waterloo, Wisconsin, while the price-competitive models are manufactured in Taiwan or mainland China. Trek is the largest US manufacturer of bicycles and related aftermarket products and is becoming a major industry player worldwide. Trek formerly supplied the bicycles for the US Postal Service Pro Cycling Team and Discovery Channel Pro Cycling Team of the USA. On December 13, 2007 Trek announced that the Astana Team had chosen Trek to be the official team bike supplier for the upcoming 2008 season and beyond.