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
Trek Bicycle Corporation made out of steel. Steel is an easier material to obtain and recycle. Also, Trek is starting to provide bike shops with funds to start recycling old tubes to be sent to Alchemy Goods in Seattle, Washington, to be made into bags, seat bags, and panniers. Bontrager branded products include helmets, tires, wheels, handlebars, stems, seatposts, saddles, electronics and cycling shoes, water bottles and other cycling clothing and accessories The relationship between Trek and Tour-de-France winner Greg LeMond went back to at least 1995 when LeMond licensed Trek to produce LeMond branded bicycles. According to Trek, "In 1999, the LeMond