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 Specialized issued a recall on about 12,000 bicycles sold through retailers from 2007 until July 2012 for a faulty front fork. Recalled models include the company's "Globe" products. A customized version of the Specialized Rockhopper mountain bike is currently used by the London Ambulance Service to equip their Cycle Response Units which operate in congested areas of the city. In 1990, Specialized tried to sue RockShox Inc, claiming the company's name too closely resembled the bicycle model name "Rockhopper" The case was ultimately dismissed with prejudice. In 2006 Specialized sued Mountain Cycle over its use of the model name "Stumptown"