BSA B31 And B33 1946 - 1960
Year B31 Engine B33 Engine Rigid Frame Spring Frame
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
XB31-101
XB31-101
YB31-101
ZB31-101
ZB31-9001
ZB31-15001
ZB31-21001
BB31-101
BB31-6001
BB31-6001
BB31-15001
BB31-15001
BB31-22001
BB31-
GB31-101
GB31-1909
XB33-101
YB33-101
ZB33-101
ZB33-4001
ZB33-7001
ZB33-11001
BB33-101
BB33-2001
BB33-2001
BB33-5001
BB33-5001
BB33-7301
BB33-
GB33-101
GB33-662
GB33-1001
XB31-101
XB31-101
YB31-101
ZB31-101
ZB31-9001
ZB31-14001
ZB31-19001
BB31-101
BB31-1386
ZB31S-101
ZB31S-5001
ZB31S-10001
ZB31S-17001
BB31S-101
BB31S-5895
CB31-101
BB315-12001
CB31-6001
EB31-101
EB31
FB31-101
FB31-2572
GB33-101