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 (nickname for Portland), alleging it resembled the Specialized model name Stumpjumper. Mountain Cycle closed doors shortly thereafter. In 2009 Specialized had a trademark dispute with a manufacturer of bicycle bags, Epic Designs, now Revelate Designs. In 2010 Specialized took NASCAR racing driver & team owner Robby Gordon to court over the logo used for his own "Speed energy drink", claiming it was visually similar to their own 'S' logo. Gordon sued Specialized after receiving a cease-and-desist letter in September 2010 and Specialized then counter-sued Gordon. Gordon was ordered by the court to remove the Speed 'S' logo from his racecars