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
Star Trek VI: The Undiscovered Country 2005, a bootleg copy of the soundtrack also surfaced with thirty-six tracks of score and a running time of nearly seventy minutes. Intrada Records released a two-disc set in 2012. The first disc is made up of the complete score and four extra cues. The second disc contains the material from the original MCA release. "The Undiscovered Country"s Cold War allegory and references to literary history were recognized among researchers and cultural historians. According to scholar Larry Kreitzer, "The Undiscovered Country" has more references to William Shakespeare than any other "Star Trek" work until at least 1996. The title itself