The frame and engine numbers should have a prefix...WM, XM etc...What is the engine number on this one?....XM20 was used for 1946 and '47....I'd have to dig deeper to determine which of those years 2234 is....O & M British Forces Motorcycles don't record a WDM20 with that frame number...
XM20s of those years were essentially civilianised military bikes with appropriate finishes, that had some changes made but retained many of the military components. Some military components were replaced with civilian types as stocks ran down, for example, the WD footrests and the 'side mounted' WD speedo bracket. I restored one of these years back and think I still have the details of what military parts were retained....The M20 wasn't really changed to a fully civilian post war spec. until the introduction of Tele forks in 1948....The rear frame section had a single sidecar attachment lug on the left hand side...
The XM20s were all black (including the wheel rims) with a dull silver, unplated, 'non cut off' WD type tank with black lining and black BSA logo applied...The (WD type) handlebars, levers etc., the kickstart and gearchange levers, headlamp rim and oil and petrol tank caps were chrome plated....Ian
