Thanks, maybe you had the 7E type box rather typical of Albion style , think I'll stick to 3-ish speeds , besides I've hardly used those !
Did once lap the flywheel after Preisthouse stump bashing . I gather from Armours that many fit the 2F type silencer and a Greeves TFS type pipe , now I need to change Villiers S24 swiss cheese carb for smaller Mikuni , maybe off GP100 Suzuki Pixie