In 1979, production of Raleigh 531 butted-tube bicycles reached 10,000 units a year. In 1980, the former Carlton factory at Worksop closed and production was moved to a Lightweights facility at Nottingham. However, all bicycles made there afterward still carried the W for Worksop frame number designation. In 1982, rights to the Raleigh USA name were purchased by the Huffy Corporation. Under the terms of the agreement, Raleigh of England licensed Huffy to design and distribute Raleigh bicycles in the US,[26] and Huffy was given instant access to a nationwide network of bike shops. The renamed Raleigh Cycle Company of America sold bikes in the US while the rest of the world, including Canada, received Raleigh of England bikes. At that time, production of some U.S. Raleigh models were shifted to Japan, with Bridgestone manufacturing most of these bikes. By 1984, all Raleighs for the American market, except the top-of-the range Team Professional (made in Ilkeston) and Prestige road bikes (made in Nottingham), were produced in the Far East.[[i]citation needed] Meanwhile, in the home market, Raleigh had broken into the new UK BMX market with their Burner range, which was very successful.