The story
1962 was the last full year for the production Norton Manx. In July AMC announced the transfer of production from Bracebridge Street to Woolwich in London. Forty two Manx Nortons were produced between November 1962 and January 1963. In 1966 Colin Seeley purchased what remained of the spares and tools, which he eventually sold on to John Tickle in 1969. When Godfrey Nash rode a Norton Manx to victory at the 1969 Yugoslavian Grand Prix at the Opatija Circuit, it would mark the last time that a 500cc Grand Prix race was won on a single-cylinder machine.
John Tickle took over the Manx name when Norton ceased production and acquired a large quantity of spare parts. He also manufactured complete racers, called the Manx T5 (500) and T3 (350). Both used the short-stroke Manx engines in a frame designed by Tickle but he could not compete against the Japanese racers and sold his stock and the rights in the late 1970s to Unity Equipe, a retail spares business in Rochdale, UK. Bernie Allen of Wiltshire obtained the rights to manufacture the Manx in 1989 and manufacture a limited number of machines in 1992 and 1993 under the name Allen Norton.
The manufacturing rights then passed in 1994 to Andy Molnar, an engineer based in Preston, UK who firstly produced parts faithful to the original 1961 drawings, followed by engines then complete machines named Molnar Manx. A road-version with alternator and 'softer' engine spec is also available in conjunction with ex-racer Steve Tonkin, called Tonkin Tornado with a 2013 base-price of £34,000 (GBP).
From Wikipedia’s article on Norton Manx, shared under CC BY-SA 4.0.3