Grey Flash 2751

The history and restoration of a Vincent HRD Grey Flash

Externally I can see that a considerable amount of the original motor remains. Certainly the cylinder head was replaced. As mentioned earlier in in a comment by Bill Hoddinott: “The original cylinder head of the GF was an unpainted Black Lightning/Shadow front head with standard size but polished valves and the inlet port opened to …

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When I acquired 2751, it had fitted to it a very smart looking painted petrol tank that has been signed by John Surtees at an event in Japan (see pic in the ‘History’ section of this blog). This tank looked splendid but as I dug into the original specification of 2751 I realised that the …

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When I acquired 2751 I noted that the wheel rims fitted were 21″ for the front and 19″ to the rear – both Borrani. Bill Hoddinott commented: “I have the impression that the Works used both Borrani and Dunlop 20 (rear) and 21 inch alloy (front) rims on GFs and BLs interchangeably from ’49 through …

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Vincent racing motorcycles were fitted with a special and simplified chain adjustor. Racing models were supplied with a T-bar adjuster and locknut. These were not present on 2751 though they were originally fitted. David Dunfey kindly put me in touch with Vic and Matt Olsen, who were making some, and they agreed to make me …

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The front brake plates of the Grey Flash were the same as those fitted to the Black Lightning models. They were made from Elektron magnesium alloy with a detachable air scoop and a neat mesh screen to prevent grit ingress. A solid axle featured a waisted bolt, for lightness and ribbed Black Shadow drums were …

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Forks The Vincent Girdraulic fork legs are an instantly recognisable feature of later Vincent HRD motorcycles. The legs are handed but cleverly machined from a single forging. Some people say that they were produced for Vincent by the Bristol Aircraft Co. but I have read that this is not actually true. Anyway, the fork legs …

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About Me… The Purpose of This Blog. The blog will be divided into three parts: To detail the known HISTORY of Vincent HRD Grey Flash 2751. To ascertain what PARTS were original and to source missing parts. To record the RESTORATION of this important racing motorcycle to as close to Works Record Card specification as …

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