Brake drum diameter

Simon Dinsdale

VOC Machine Registrar
VOC Member
VOC Forum Moderator
Does anybody know the actual diameter of the brake drum used on Vincents. I know they are refered to as 7" but I seem to remember somebody saying the were actuall slightly larger. The only drums I have are on the bike and I would rather not have to remove a wheel.

Cheers,
Simon.
 
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