Presumably the same as a late Shipley Scott ? —They both have the same drive off the outrigger and both have 19″ back wheels/ 21T final drive sprocket, but I don’t know if the rear sprocket on a Brum has the same number of teeth as a Shipley/Enfield rear sprocket. If someone can confirm I can soon have a look at a late Shipley speedo and get the type number.
Brian
