History of my BSA M21
I bought the M21 from Morten in Måløv on the Danish island Sjælland. Morten's dad drove the motorcycle home from England where it had served as rescue vehicle with the AA Service. Back then the BSA was fitted with a sidecar for tools. The sidecar box was made of wood, and in time it had gone rotten and was to far gone to preserve. It was lost with the sidecar frame. The original frame of the M21 was never registered in Denmark, because some thought that is was too expensive to get it registered. Instead all the parts were moved to another M21 frame, which was already registered in Denmark. The original frame was thrown away. That’s how the latest model M21 vent from being a 1963 model, to be a 1954 model. As the development of the M21 merely was stopped in the end of its life, no chances had been made from the 54-model to the 63-model. In spite of 9 years had past from 1954 to 1963, the only difference to the model was that in 1954 you could choose between a twin seat or a solo saddle. In 1963 only the twin seat was available.A special ting about the 1963 M21 was that a few models were factory modified to be fitted with 6 volt dynamo and 12 volt alternator on the crank. The clutch was changed to the newer A65 type. Like other Military models the tank had no kneepads and emblems. Those models were only sold by special order to AA Road Service. The alternator was fitted to supply a radio transmitter.