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
Bicycle industry road does at a macro level to increase transport, the bicycle supports at the micro level. The bicycle, in that sense, can be one of the best means to eradicate poverty in poor nations. World Bicycle Relief, which specializes in large-scale, comprehensive bicycle distribution programs to aid poverty relief and disaster recovery initiatives in developing countries around the world, includes among its sponsors such notable companies as Accell Group, Bicycle Technologies International, Giant Bicycles, GT Bicycles, Quality Bicycle Products, Shimano, SRAM Corporation, Specialized Bicycle Components, and Trek Bicycle Corporation. Notable publications about bicycles and cycling include: Bicycle industry The Bicycle