I have been offered a BSA 350 Twin BB 31 Series motorcycle.It has a Triumph 3T engine in BSA BB 31 plunger frame.Is it possible.Does anyone has any idea about this type of BSA bike.I have looked everywhere but could not find any details on this bike.It is said these bikes were made after BSA had taken over Triumph in1950's.And that only few prototypes were produced.Please any information on this will be highly appreciated.
Regards
Mahavir
