Belt-driven bicycle with a compact design that, like STRiDA, featured a belt drive. Other folding-bike manufacturers that have implemented a belt drive include U.S. company Bike Friday and Netherlands-based Bernds. In 2007, Gates Corporation developed a high-modulus synchronous belt and sprocket system called the Carbon Drive System. The belt’s pitch allowed for lower tension requirements to help prevent skipping. Lightweight, patent-pending sprockets have mud ports, openings under each tooth, which work to slough off debris. In 2009, an increasing number of bicycle companies, including Trek and "f"8 Cycles, offered belt-driven bicycles. While builders initially focused on single-speeds and internal hubs, in early
Trek Bicycle Corporation annual Trek World dealer convention in Madison, Wisconsin. Central to 1 World 2 Wheels is its "Go By Bike" initiative, which urges Americans to ride their bikes instead of drive their cars for trips of two miles (3 km) or less. Through 1 World 2 Wheels Trek also pledged $1,000,000 to help fund the League of American Bicyclists’ "Bicycle Friendly Community" program and committed $600,000 to the International Mountain Bicycling Association's (IMBA) Trail Solutions Services. On January 6, 2014, Trek announced the acquisition of the Electra Bicycle Company. In 2009, Trek created the Trek Women Triathlon Series. 2011, Trek sponsored