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
Diamant (German bicycle company) Fahrradwerke GmbH by the Trek Bicycle Corporation, which has a positive effect. The company introduces more innovations in its model lineup, like the Drive+ system, which is an electronic drive-assist on the bicycle, and rolling out the line of Pedelecs eBikes. Today, the Diamant brand is focused on popular models, for city, touring and sports riding, focused on making the riding experience pleasurable. Along with Trek's racing bicycles, the two brands form cohesion and a complete offerings, spanning all markets. The company is not connected with the Norwegian bicycle manufacturer of the same name. Diamant (German bicycle company) Diamant is