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
Specialized Bicycle Components Choi and Forsman's attorney, Tyler Paetkau, that Specialized incurred more than $2M in legal fees to practice "competition by litigation." In September 2016, Volagi announced that it would close its doors after a founding member was injured in a bicycle accident involving an automobile. In 2013 Specialized mailed a small bike shop owner in Canada a cease and desist letter over its use of the city name Roubaix in its shop name and wheels, the name of a town in France that rose to prominence as a textile center in the 15th century and has hosted an iconic bicycle race