Year
Bike
Picture
Description
0
BSA M21
1948
1948 bsa m21, 600cc
1948
BSA M21
1949
1949 bsa m21
1951
1951 bsa m21
1952
1952 bsa m21
1954
1954 bsa m21
1954
1954 bsa m21 plunger
1954
BSA M21
1955
1955 bsa m21
1956
1956 BSA M21
1956
BSA M21
1956
BSA M21
1959
BSA M21
1960
BSA M21 600 side valve
1960
BSA M21 AA Combination
Image provided courtesey of www.cheffins.co.uk.
1972
1972 BSA M21 AA RSO
electronic igntion