Grey Flash 2751

The history and restoration of a Vincent HRD Grey Flash

As mentioned in the post before last, there was something that we felt we needed to get to the bottom of. The image of this component, kindly sent to us by David Dunfey, featured a nut seated in a counter bore. This nut had been torqued into place and was held by the edges of …

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Much re-designing to the 500cc cycle parts was required by Vincent HRD to accommodate the Albion racing gearbox. The standard road-going Comet and Meteor utilises a Burman gearbox and everything was designed to accept this proprietary unit. Fitting the Albion gearbox required special brackets, unique to the Grey Flash, and major surgery to other parts. …

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This component is of a special configuration to accommodate the Albion racing gearbox and thus unique to the Grey Flash. This modification was performed in antiquity but for what purpose we’re not sure.There is an argument that it was done for purposes of lightening though we think it may have been undertaken to enable easier …

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The Grey Flash features an extensively drilled and lightened headstock casting. The Works must have deemed this appearance a little unsightly so an alloy cover plate was devised to cover up the holes and provide a place for the mercury crest transfer. I’m convinced this is original to the bike; accurately constructing a similar part …

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The original FT3 that we obtained from Franc and Greg, down in Australia, has been drilled. David Dunfey kindly supplied additional data which enabled us to drill with confidence. He also furnished us with photos of the original FT3 from his GF. Once the lockdown has lifted and businesses are up ‘n’ running again, this …

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When I acquired 2751 it was fitted with a BT-H BKH1 magneto. Nearly all Grey Flashes were fitted with BT-H TT magnetos so I knew this was not correct to the bike. Also, the retard fitting was for the opposite rotation. I wasn’t expecting to be able to find a BT-H TT magneto very easily …

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