Engine and Frame Numbers

Pick a year if you have a general understanding of their meaning or read the follow general understanding below:

1912 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932

1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953

1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974

BSA used a system of letters and numbers for yearly identification of their machines. This information combined with the yearly numbers below should help you identify the year and model of your machine.

The Frame Numbers are alway stamped. If you find raised numbers, these are casting part numbers. Up until 1968 it is rare for the engine and frame number to be identical and where the frame is shared by several models the codes start with the smallest model e.g. all A series models have A7 or A50 prefixes with the exception of the Rocket Gold Star and Super Flash. On most BSA's the frame number is located in the following places.

FRAME NUMBERS

Pre war: Frame Number is located on the front top frame member either by the front seat stay or by the steering head.

1950's: Located on the front down tube below or in front of the gas tank. An exception to this is the early Bantams where the frame number is between the front engine mounting plate.

1960-65: Located by the steering head reinforcing plate or front down tube. Some Bantam's frame numbers are on the engine mounting plate.

1965-1968: The Frame numbers are usually located on the front engine mounting lug.

1968 on: Frame Number is on front engine mounting lug. The engine and frame numbers are the same from 1968 on.

1971 on: The Frame Number in the "oil in frame" models is located on the steering head stem. The oil in frame B-series are stamped on the propstand bracket. The Number includes an Year and Month code. Same designation as Triumph from these years. (see Triumph Part Numbers for clear understanding).

ENGINE NUMBERS

Engine numbers are usually by the crankcase mouth on the primary side. Exceptions are the Bantams which could be stamped on the front mounting point or just behind the crankcase mouth.

That's It. Any Comments how I can make this any clearer or errors e-mail: Joe

1912
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
3.5 H.P. 2 SPEED	--	5530	--	5351	500
4.25 H.P. 3 SPEED	--	5530	--	5351	550
1914
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
3.5 H.P. 2 SPEED	--	8662	--	8801	500
4.25 H.P. 3 SPEED	--	5530	--	5351	550
1915
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
4.25 H.P. CHAIN CUM BELT 3 SPEED	--	12692	--	12661	550
1916
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
4.25 H.P. CHAIN CUM BELT 3 SPEED	--	17575	--	17461	550
1917
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
4.25 H.P. CHAIN CUM BELT 3 SPEED	--	22867	--	22871	550
1918
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
4.25 H.P. CHAIN CUM BELT 3 SPEED	--	26991	--	27071	550
1919
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
4.25 H.P. CHAIN CUM BELT 3 SPEED	--	31213	--	31351	550
1920
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
4.25 H.P. CHAIN CUM BELT 3 SPEED	--	36965	--	37901	550
6/7 H.P. TWIN	--	100	T	100	770
1921
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
6/7 H.P. TWIN	--	100	T	100	770
1922
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
4.25 H.P. H2 OR K2	R	2	B	109	550
4.5 H.P. DE LUXE	H	105	K	1	550
6/7 H.P. TWIN	--	2117	A	1	770
1923
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.75 H.P.	--	100	D	1	350
4.25 H.P. H2 OR K2	R	2	B	109	550
4.5 H.P. DE LUXE	H	105	K	1	550
6/7 H.P. TWIN	--	2117	A	1	770
8 H.P. TWIN	--	1	M	2100	1000
1924
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.49 H.P. STANDARD	B	1	BR	9400	250
2.75 H.P.	--	100	D	1	350
3.5 H.P.	L	6501	P	1	350
4.98 H.P. DE LUXE	--	6000	S	1300	500
4.5 H.P. LIGHT	H	320	B	7680	550
8 H.P. TAXI	--	717	W	--	1000
8 H.P. TWIN	--	1	M	2100	1000
8 H.P. TWIN COLONIAL	--	1070	--	1	1000
1925
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.49 H.P. STANDARD DE LUXE	B	9800	BR	9400	250
3.49 H.P.	F	1	--	294	350
3.49 H.P.	F	1	F	1	350
3.49 H.P. OHV SUPER	--	--	--	--	350
3.5 H.P.	L	6501	P	1	350
4.5 H.P. LIGHT	H	320	B	7680	450
4.98 H.P. DE LUXE	--	6000	S	1300	500
7.70 H.P. DE LUXE	--	1060	N	1	750
7.70 H.P. LIGHT	--	7390	V	1	750
9.86 H.P. COLONIAL	--	1330	L	1	1000
9.86 H.P. DE LUXE	--	1341	W	2907	1000
9.86 H.P. LIGHT	--	1270	W	1	1000
1926
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.49 H.P. STANDARD DE LUXE	B	24400	BR	24800	250
3.49 H.P.	F	1	--	294	350
3.49 H.P.	F	1	F	1	350
3.49 H.P. OHV SUPER	--	--	--	--	350
4.93 H.P. STANDARD	M	4000	GM	4000	500
4.98 H.P. DE LUXE	M	100	U	1	500
4.98 H.P. STANDARD	M	100	G	1	500
5.57 H.P. DE LUXE	H	3923	K	20(X)	550
5.57 H.P. LIGHT	B	3927	B	13000	550
7.70 H.P. DE LUXE	--	1060	N	1	750
7.70 H.P. LIGHT	--	7390	V	1	750
9.86 H.P. COLONIAL	--	1330	L	1	1000
9.86 H.P. DE LUXE	--	1341	W	2907	1000
9.86 H.P. LIGHT	--	1270	W	1	1000
1927
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.49 H.P. STANDARD DE LUXE	B	30900	BR	31000	250
3.49 H.P. OHV SUPER	D	100	Z	9474	350
4.93 H.P. OHV	P	2500	P	2500	500
4.93 H.P. STANDARD & SPECIAL SPORTS	M	3955	GM	5741	500
4.98 H.P. DE LUXE	M	8258	U	4000	500
5.57 H.P.	H	6000	U	4933	550
7.70 H.P. DE LUXE	A	100	N	5231	750
7.70 H.P. LIGHT	A	100	V	3500	750
9.86 H.P. DELUXE	C	100	N	5134	1000
1928
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
1.74 H.P. 2 STROKE	N	103	E	101	150
2.49 H.P.	B	35117	B	36404	250
3.49 H.P.	F	16680	Z	13982	350
3.49 H.P. OHV STANDARD	L	8820	Z	13982	350
3.49 H.P. OHV SUPER	D	655	Z	13982	350
4.93 H.P.	M	13304	GM	9343	500
4.93 H.P.	M	15874	U	8735	500
4.93 H.P. OHV	P	3217	P	3789	500
5.57 H.P.	H	4521	U	8735	550
7.70 H.P. TWIN	A	969	N	6001	750
9.86 H.P. TWIN	C	400	N	6001	1000
1929
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
1.75 H.P. A29 STANDARD 2 STROKE	N	1270	E	1640	150
1.75 H.P. STANDARD DE LUXE 2 STROKE	Y	1	E	1	150
2.49 H.P. B29 DE LUXE	B	42108	B	47120	250
3.49 H.P. L29 DE LUXE	F	19501	Z	19501	350
3.49 H.P. L29 OHV	L	10501	Z	19501	350
3.49 H.P. L29 OHV 2 PORT SLOPER	D	1801	J	101	350
4.93 H.P. S29 2 PORT LIGHT	K	101	H	101	500
4.93 H.P. S29 OHV 2 PORT SLOPER	P	8850	P	8500	500
4.93 H.P. S29 DE LUXE	S	101	P	8500	500
4.93 H.P. S29 STANDARD	M	9300	G	5990	500
4.93 H.P. OHV DIRT TRACK	T	101	R	101	500
5.57 H.P. H29 DE LUXE	H	8600	P	9040	550
7.70 H.P. E29	A	1740	V	5001	750
7.70 H.P. E29 DE LUXE	C	1850	N	6760	750
9.86 H.P. G29 WORLD TOUR	C	1850	N	6760	1000
1930
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
1.74 H.P. A30-2 3 SPEED 2 STROKE	Y	101	E	101	150
2.49 H.P. B30-3	XM	101	XB	101	250
2.49 H.P. B30-4 OHV	XR	101	XB	101	250
3.49 H.P. L30-11 OHV DE LUXE	XV	101	XH	101	350
3.49 H.P. L30-5	XT	101	XB	101	350
3.49 H.P. L30-6 COMMERCIAL	XT	101	XA	101	350
4.93 H.P. S30-12 OHV	XW	101	XX	101	500
4.93 H.P. S30-13 OHV DELUXE	XP	101	XH	101	500
4.93 H.P. S30-18 LIGHT	XU	101	XL	101	500
4.93 H.P. S30-19 OHV LIGHT	XO	101	XL	101	500
4.93 H.P. S30-7	XS	101	XH	101	500
4.93 H.P. S30-9 DELUXE	XS	101	XH	101	500
5.57 H.P. H30-10 DE LUXE	XX	101	XH	101	550
5.57 H.P. H30-8	XX	101	XH	101	550
7.70 H.P. E30-14 TWIN	XY	101	XD	101	750
9.86 H.P. G30-15 TWIN	XZ	101	XD	101	1000
9.86 H.P. G30-16 TWIN WORLD TOUR	XZ	101	XG	101	1000
1931
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.49 H.P. B31-1	Y1	101	Y1	101	250
2.49 H.P. B31-2 OHV	Y2	101	Y1	101	250
2.49 H.P. B31-3 OHV DE LUXE	Y3	101	Y3	101	250
2.49 H.P. L31-5 POST OFFICE	YT	101	Y5	101	250
3.49 H.P. L31-4	Y4	101	Y1	101	350
3.49 H.P. L31-5 DE LUXE	Y5	101	Y5	101	350
3.49 H.P. L31-6 OHV DE LUXE	Y6	101	Y5	101	350
4.93 H.P. S31-10 OHV DE LUXE	Y10	101	Y7	101	500
4.93 H.P. S31-7	Y7	101	Y7	101	500
4.93 H.P. S31-9 OHV	Y9	101	Y7	101	500
5.57 H.P. H31-8 DE LUXE	Y8	101	Y7	101	550
7.70 H.P. E31-11 TWIN 2 GALLON TANK	Y11	101	Y11	101	750
7.70 H.P. E31-11 TWIN 3 GALLON TANK	Y11	101	Y11A	101	770
9.86 H.P. G31-12 TWIN WORLD TOUR	Y12	101	Y12	101	1000
1932
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.49 H.P. B32-1 OHV	Z1	101	Z1	101	250
3.49 H.P. L32-2	Z2	101	Z1	101	350
3.49 H.P. L32-3 OHV	Z3	101	Z3	101	350
3.49 H.P. L32-4 DE LUXE H/CHANGE	Z4	101	Z4	101	350
3.49 H.P. L32-4 DE LUXE FOOT CHANGE	Z4	101	Z5	101	350
3.49 H.P. L32-5 OHV BLUE STAR H/CHG	Z5	101	Z4	101	350
3.49 H.P. L32-5 OHV BLUE STAR F/CHG	Z5	101	Z5	101	350
3.49 H.P. L32-5 OHV DE LUXE H/CHG	Z5	101	Z4	101	350
3.49 H.P. L32-5 OHV DE LUXE F/CHG	Z5	101	Z5	101	350
3.49 H.P. L32-5 OHV BLUE STAR H/CHG	Z11	101	Z4	101	350
3.49 H.P. L32-5 OHV BLUE STAR F/CHG	Z11	101	Z5	101	350
4.99 H.P. S32-8 OHV DE LUXE	Z8	101	Z8	101	500
4.99 H.P. W32-6 FOOT CHANGE	Z6	101	Z7	101	500
4.99 H.P. W32-6 HAND CHANGE	Z6	101	Z6	101	500
4.99 H.P. W32-7 OHV BLUE STAR F/CHG	Z12	101	Z7	101	500
4.99 H.P. W32-7 OHV BLUE STAR F/CHG	Z7	101	Z7	101	500
4.99 H.P. W32-7 OHV BLUE STAR H/CHG	Z12	101	Z6	101	500
4.99 H.P. W32-7 OHV BLUE STAR H/CHG	Z7	101	Z6	101	500
4.99 H.P. W32-7 OHV FOOT CHANGE	Z7	101	Z7	101	500
4.99 H.P. W32-7 OHV HAND/CHANGE	Z7	101	Z6	101	500
5.57 H.P. H32-9 DE LUXE	Z9	101	Z8	101	550
9.86 H.P. G32-10	Z10	101	Z10	101	1000
1933
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
2.49 H.P. B33-1	A1	101	A1	101	250
2.49 H.P. B33-2 OHV S.P.	A2	101	A1	101	250
2.49 H.P. B33-3 BLUE STAR JUNIOR	A3	101	A3L	101	250
3.48 H.P. R33-4 OHV	A4	101	A4	101	350
3.48 H.P. R33-5 OHV BLUE STAR H/CHG	A5	101	A4	101	350
3.48 H.P. R33-5 OHV BLUE STAR F/CHG	A5	101	A5	101	350
4.99 H.P. W33-6	A6	101	A4	101	500
4.99 H.P. W33-6 POST OFFICE	A6	101	A6	101	500
4.99 H.P. W33-7 OHV	A7	101	A4	101	500
4.99 H.P. W33-8 OHV BLUE STAR F/CHG	A8	101	A5	101	500
4.99 H.P. W33-8 OHV BLUE STAR H/CHG	A8	101	A4	101	500
4.99 H.P. W33-9 OHV SPECIAL H/CHG	A9	101	A9R	101	500
4.99 H.P. W33-9 OHV SPECIAL F/CHG	A9	101	A9L	101	500
5.95 H.P. M33-10	A10	101	A10	101	600
5.95 H.P. M33-11 OHV	A11	101	A10	101	600
9.86 H.P. G33-12 TWIN LIGHT	A12	101	A?		1000
9.86 H.P. G33-13 TWIN WORLD TOUR	A13	101	A13	101	1000
9.98 H.P. G33-14 TWIN WAR OFFICE	A14	101	A14	101	1000
1934
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
1.49 H.P. X34-0 OHV	B150	101	B1	101	150
2.49 H.P. B34-1	B1	101	B1	101	250
2.49 H.P. B34-17 OHV SPORTS	B17	101	B3	101	250
2.49 H.P. B34-2 OHV	B2	101	B1	101	250
2.49 H.P. B34-3 BLUE STAR JUNIOR	B3	101	B3	101	250
3.48 H.P. R34-4 OHV	B4	101	B4	101	350
3.48 H.P. R34-5 OHV BLUE STAR	B5	101	B4	101	350
3.48 H.P. R34-6 OHV SPECIAL	B6	101	B6	101	350
4.99 H.P. W34-7	B7	101	B7	101	500
4.99 H.P. W34-8 OHV	B8	101	B4	101	500
4.99 H.P. W34-9 OHV BLUE STAR	B9	101	B4	101	500
4.99 H.P. W34-10 OHV SPECIAL	B10	101	B6	101	500
4.98 H.P. J34-11 OHV TWIN	B11	101	B11	101	500
5.95 H.P. M34-12	B12	101	B12	101	600
5.95 H.P. M34-13 OHV	B13	101	B12	101	600
9.86 H.P. G34-14 TWIN WORLD TOUR	B14	101	B14	101	1000
1935
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
1.49 H.P. X35-0 OHV	E0	101	E1	101	150
2.49 H.P. B35-1	E1	101	E1	101	250
2.49 H.P. B35-2 OHV	E2	101	E1	101	250
2.49 H.P. B35-3 OHV DE LUXE	E3	101	E3	101	250
3.48 H.P. R35-4 OHV DE LUXE	E4	101	E3	101	350
3.48 H.P. R35-5 OHV BLUE STAR	E5	101	E5	101	350
3.48 H.P. R35-17 OHV Twin Port	E17	101	E5	101	350
4.98 H.P. W35-6	E6	101	E6	101	500
4.98 H.P. J35-12 OHV TWIN	E12	101	E12	101	500
4.99 H.P. W35-7 OHV	E7	101	E5	101	500
4.99 H.P. W35-8 OHV BLUE STAR	E8	101	E5	101	500
4.99 H.P. W35-9 OHV SPECIAL	E9	101	E9	101	500
5.95 H.P. M35-10	E10	101	E10	101	500
5.95 H.P. M35-11 OHV	E11	101	E10	101	600
7.50 H.P. J35-15 OHV TWN WAR OFFICE	E15	101	E15	101	750
9.86 H.P. G35-14 TWIN	E14	101	E14	101	1000
1936
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
1.49 H.P. X0 OHV	D0	101	D1	101	150
2.49 H.P. B1	D1	101	D1	101	250
2.49 H.P. B18 OHV LIGHT DE LUXE	D18	101	D1	101	250
2.49 H.P. B2 OHV	D2	101	D1	101	250
2.49 H.P. B3 OHV DE LUXE	D3	101	D3	101	250
3.48 H.P. R4 OHV DE LUXE	D4	101	D3	101	350
3.48 H.P. R17 OHV	D17	101	D6	101	350
3.48 H.P. R19 OHV COMPETITION	D19	101	D3	101	350
3.48 H.P. R20 OHV NEW BLUE STAR	D20	101	D6	101	350
3.48 H.P. R5 OHV EMPIRE STAR	3D5	101	D38	1101	350
3.48 H.P. R5 OHV EMPIRE STAR	D5	101	D8	101	350
4.96 H.P. Q21 OHV NEW BLUE STAR	D21	101	D6	101	500
4.96 H.P. Q7 OHV	D7	101	D6	101	500
4.96 H.P. Q8 OHV EMPIRE STAR	3D8	101	D38	1101	500
4.96 H.P. Q8 OHV EMPIRE STAR	D8	101	D8	101	500
4.98 H.P. J12 OHV TWIN	D12	101	D12	101	500
4.99 H.P. W6	D6	101	D6	101	500
5.95 H.P. M10	D10	101	D10	101	600
7.48 H.P. Y13 OHV TWIN	D13	101	D13	101	750
9.86 H.P. G14 TWIN	D14	101	D14	101	1000
1937
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
B20 TOURER	HB20	101	HB20	101	250
B21 OHV SPORTS	HB21	101	HB20	101	250
B22 OHV EMPIRE STAR	HB22	101	HB20	101	250
B23 TOURER	HB23	101	HB20	101	350
B24 OHV EMPIRE STAR	HB24	101	HB24	101	350
B25 OHV COMPETITION	HB25	101	HB24	101	350
B26 OHV SPORTS	HB26	101	HB24	101	350
M19 OHV DE LUXE	HM19	101	HM19	101	350
M20 TOURER	HM20	101	HM19	101	500
M22 OHV SPORTS	HM22	101	HM19	101	500
M23 OHV EMPIRE STAR	HM23	101	HM19	101	500
M21 TOURER	HM21	101	HM19	101	600
Y13 OHV TWIN	HY13	101	HY13	101	750
G14 TWIN	HG14	101	HG14	101	1000
1938
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
B20 TOURER	JB20	101	JB20	101	250
B21 OHV SPORTS	JB21	101	JB20	101	250
B22 OHV EMPIRE STAR	JB22	101	JB20	101	250
C10	JC10	101	JC10	101	250
C11	JC11	101	JC10	101	250
B23 TOURER	JB23	101	JB20	101	350
B24 OHV EMPIRE STAR	JB24	101	JB24	101	350
B25 OHV COMPETITION	JB25	101	JB24	101	350
B26 OHV SPORTS	JB26	101	JB24	101	350
M19 OHV DE LUXE	JM19	101	JM19	101	350
M20 TOURER	JM20	101	JM19	101	500
M22 OHV SPORTS	JM22	101	JM19	101	500
M23 OHV EMPIRE STAR	JM23	101	JM19	101	500
M24 GOLD STAR	JM24	101	JM24	101	500
M21 TOURER	JM21	101	JM19	101	600
Y13 OHV TWIN	JY13	101	JY13	101	750
G14 TWIN	JG14	101	JG14	101	1000
1939
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
B21 DE-LUXE	KB21	101	KB20	101	250
B21 STANDARD	KJB21	101	KJB20	101	250
C10 DE-LUXE	KC10	101	KC10	101	250
C10 STANDARD	KJC10	101	KJC10	101	250
C11	KC11	101	KC10	101	250
B23 STANDARD	KJB23	101	KJB20	101	350
B25 COMPETITION	KB25	101	KB24	101	350
B26	KB26	101	KB24	101	350
B23 DE-LUXE	KB23	101	KB20	101	350
B24 SILVER STAR	KB24	101	KB24	101	350
M20 DE-LUXE	KM20	101	KM20	101	500
M20 STANDARD	KMS20	101	KM20	101	500
M22 STANDARD	KJM22	101	KJM19	101	500
M23 SILVER STAR	KM23	101	KM23	101	500
M24 GOLD STAR	KM24	101	KM24	101	500
M21	KM21	101	KM20	101	600
G14 TWIN	KG14	101	KG14	101	1000
1940
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
C10	WC10	101	WC10	101	250
C11	WC11	101	WC10	101	250
B29 SILVER SPORTS	WB29	101	WB27	101	350
C12	WC12	101	WC10	101	350
W.D.B30	WB30	101	WB30	101	350
M20	WM20	101	WM20	101	500
M23 SILVER STAR	WM23	101	WM20	101	500
W.D. M20	WM20	9719	WM20	9719	500
W.D. M20	WM20	14439	WM20	14439	500
W.D. M20	WM20	18899	WM20	18899	500
W.D. M20	WM20	23039	WM20	23039	500
W.D. M20	WM20	27039	WM20	27039	500
M21	WM21	101	WM20	101	600
G14 TWIN	WG14	101	WG14	101	1000
1941
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
C10	WC10	101	WC10	101	250
C11	WC11	101	WC10	101	250
B30	WB30	101	WB30	101	350
C12	WC12	101	WC10	101	350
W.D. M20	WM20	31879	WM20	31879	500
W.D. M20	WM20	40939	WM20	40939	500
W.D. M20	WM20	45669	WM20	45669	500
W.D. M20	WM20	50549	WM20	50549	500
1942
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
W.D. M20	WM20	55429	WM20	55429	500
W.D. M20	WM20	60309	WM20	60309	500
W.D. M20 ESTIMATED	WM20	70000	WM20	70000	500
1943
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
W.D. M20 ESTIMATED	WM20	90000	WM20	90000	500
1944
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
W.D. M20 ESTIMATED	WM20	110000	WM20	110000	500
1945
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
C10	XC10	101	XC10G	101	250
C11	XC11	101	XC10G	101	250
B31	XB31	101	XB31	101	350
M20	XM20	101	XM20	101	500
1946
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
C10 GIRDER FORK	XC10	101	XC10G	101	250
C10 TELESCOPIC FORK	XC10	101	XC10T	101	250
C11 GIRDER FORK	XC11	101	XC10G	101	250
C11 TELESCOPIC FORKS	XC11	101	XC10T	101	250
B31	XB31	101	XB31	101	350
B32 COMPETITION	XB32	101	XB31	101	350
M20	XM20	101	XM20	101	500
M21	XM21	101	XM20	101	600
1947
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
C10	XC10	101	XC10T	101	250
C11	XC11	101	XC10T	101	250
B31	XB31	101	XB31	101	350
B32 COMPETITION	XB32	101	XB31	101	350
A7	XA7	101	XA7	101	500
B33	XB33	101	XB31	101	500
B34 COMPETITION	XB34	101	XB31	101	500
M20	XM20	101	XM20	101	500
M21	XM21	101	XM20	101	600
1948
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
C10	YC10	101	YC10	101	250
C11	YC11	101	YC11	101	250
B31	YB31	101	YB31	101	350
B32 COMPETITION	YB32	101	YB31	101	350
A7	YA7	101	YA7	101	500
B33	YB33	101	YB31	101	500
B34 COMPETITION	YB34	101	YB31	101	500
M20	YM20	101	YM20	101	500
M33	YM33	101	YM20	101	500
M21	YM21	101	YM20	101	600
1949
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM	YD	101	YD1	101	125
C10	ZC10	101	ZC10	101	250
C10 AUSTRALIA	ZC10A	101	ZC10	101	250
C11	ZC11	101	ZC10	101	250
B31	ZB31	101	ZB31	101	350
B31 PLUNGER	ZB31	101	ZB31S	101	350
B32 COMPETITION	ZB32	101	ZB31	101	350
B32 COMPETITION PLUNGER	ZB32	101	ZB31S	101	350
B32GS GOLD STAR	ZB32GS	101	ZB31	101	350
B32GS GOLD STAR PLUNGER	ZB32GS	101	ZB32S	101	350
A7	ZA7	101	ZA7R	101	500
A7 PLUNGER	ZA7	101	ZA7S	101	500
A7S STAR TWIN PLUNGER	ZA7S	101	ZA7S	101	500
B33	ZB33	101	ZB31	101	500
B33 PLUNGER	ZB33	101	ZB31S	101	500
B34 COMPETITION	ZB34	101	ZB31	101	500
B34 COMPETITION PLUNGER	ZB34	101	ZB31S	101	500
B34GS GOLD STAR	ZB34GS	101	ZB31	101	500
B34GS GOLD STAR PLUNGER	ZB34GS	101	ZB32S	101	500
M20	ZM20	101	ZM20	101	500
M33	ZM33	101	ZM20	101	500
M21	ZM21	101	ZM20	101	600
M21 BATAVIA	ZM21	101	ZM20	2201	600

1950
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM WITH WICO PACY ELECTRICS	YD	20001	YD1	20001	125
D1 BANTAM WITH LUCAS ELECTRICS	YDL1	101	YD1	20001	125
D1 BANTAM WICO ELECTRICS PLUNGER	YD	20001	YD1S	20001	125
D1 BANTAM LUCAS ELECTRICS PLUNGER	YDL	101	YD1S	20001	125
D1 BANTAM WICO PLUNGER GPO	YD	122001	YD1S	20901	125
C10	ZC10	4001	ZC10	10001	250
C10 AUSTRALIA	ZC10A	101	ZC10A	4001	250
C11	ZC11	8001	ZC10	10001	250
B31	ZB31	8001	ZB31	9001	350
B31 PLUNGER	ZB31	9001	ZB31S	5001	350
B31 ALLOY MOTOR	ZB31A	9001	ZB31	9001	350
B31 ALLOY MOTOR PLUNGER	ZB31A	9001	ZB31S	5001	350
B32 COMPETITION	ZB32	3001	ZB31	9001	350
B32 COMPETITION PLUNGER	ZB32	3001	ZB31S	5001	350
B32 COMPETITION ALLOY MOTOR	ZB32A	3001	ZB31	9001	350
B32 COMPETITION ALLOY MOTOR PLUNGER	ZB32A	3001	ZB31S	5001	350
B32GS GOLD STAR	ZB32GS	2001	ZB31	9001	350
B32GS GOLD STAR PLUNGER	ZB32GS	2001	ZB32S	2001	350
A7	ZA7	7001	ZA7	4001	500
A7 PLUNGER	ZA7	7001	ZA7S	6001	500
A7S STAR TWIN PLUNGER	ZA7S	4001	ZA7S	6001	500
B33	ZB33	4001	ZB31	9001	500
B33 PLUNGER	ZB33	4001	ZB31S	5001	500
B33 ALLOY MOTOR	ZB33A	4001	ZB31	9001	500
B33 ALLOY MOTOR PLUNGER	ZB33A	4001	ZB31S	5001	500
B34 COMPETITION	ZB34	2001	ZB31	9001	500
B34 COMPETITION PLUNGER	ZB34	2001	ZB31S	5001	500
B34 COMPETITION ALLOY MOTOR	ZB34A	2001	ZB31	9001	500
B34 COMPETITION ALLOY MOTOR PLUNGER	ZB34A	2001	ZB31S	5001	500
B34GS GOLD STAR	ZB34GS	2001	ZB31	9001	500
B34GS GOLD STAR PLUNGER	ZB34GS	2001	ZB32S	2001	500
M20	ZM20	4001	ZM20	7001	500
M33	ZM33	3001	ZM20	7001	500
M21	ZM21	5001	ZM20	7001	600
M21 DUTCH AUTOMOBILE ASSOCIATION	ZM21	5001	ZM20D	8426	600
A10 GOLDEN FLASH	ZA10	101	ZA7	4001	650
A10 GOLDEN FLASH PLUNGER	ZA10	101	ZA7S	6001	650
1951
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
DANDY	DSE	17901	DS	18001	70
D1 BANTAM WITH WICO PACY ELECTRICS	YD	40001	YD1	40001	125
D1 BANTAM WICO ELECTRICS PLUNGER	YD	40001	YD1S	40001	125
D1 BANTAM LUCAS ELECTRICS PLUNGER	YDL1	3001	YD1S	40001	125
D1 BANTAM WICO PLUNGER GPO	YD	122201	YD1S	44501	125
C10	ZC10	7001	ZC10	21001	250
C10 AUSTRALIA	ZC10A	21001	ZC10A	7001	250
C10 PLUNGER	ZC10	7001	ZC10S	101	250
C10 PLUNGER 4 SPEED	ZC10	7001	ZC10S4	101	250
C11	ZC11	16001	ZC10	21001	250
C11 PLUNGER	ZC11	16001	ZC10S	101	250
C11 PLUNGER 4 SPEED	ZC11	16001	ZC10S4	101	250
B31	ZB31	15001	ZB31	14001	350
B31 PLUNGER	ZB31	15001	ZB31S	10001	350
B32 COMPETITION	ZB32	4001	ZB31	14001	350
B32 COMPETITION PLUNGER	ZB32	4001	Z31S	10001	350
B32 COMPETITION ALLOY MOTOR	ZB32A	4001	ZB31	14001	350
B32 COMPETITION ALLOY MOTOR PLUNGER	ZB32A	4001	ZB31S	10001	350
B32GS GOLD STAR	ZB32GS	3001	ZB31	14001	350
B32GS GOLD STAR PLUNGER	ZB32GS	3001	ZB32S	3001	350
A7	AA7	101	ZA7	6001	500
A7 PLUNGER	AA7	101	ZA7S	14001	500
A7S STAR TWIN PLUNGER	AA7S	101	ZA7S	14001	500
B33	ZB33	7001	ZB31	14001	500
B33 PLUNGER	ZB33	7001	ZB31S	10001	500
B34 COMPETITION	ZB34	3001	ZB31	14001	500
B34 COMPETITION PLUNGER	ZB34	3001	ZB31S	10001	500
B34 COMPETITION ALLOY MOTOR	ZB34A	3001	ZB31	14001	500
B34 COMPETITION ALLOY MOTOR PLUNGER	ZB34A	3001	ZB31S	10001	500
B34GS GOLD STAR	ZB34GS	3001	ZB31	14001	500
B34GS GOLD STAR PLUNGER	ZB34GS	3001	ZB32S	3001	500
M20	ZM20	6001	ZM20	10001	500
M20 PLUNGER	ZM20	6001	ZM20S	101	500
M33	ZM33	4001	ZM20	10001	500
M33 PLUNGER	ZM33	4001	ZM20S	101	500
M21	ZM21	8001	ZM20	10001	600
M21 PLUNGER	ZM21	8001	ZM20S	101	600
A10 GOLDEN FLASH	ZA10	4001	ZA7	14001	650
A10 GOLDEN FLASH PLUNGER	ZA10	4001	ZA7S	14001	650
1952
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM WITH WICO PACY ELECTRICS	YD	63001	YD1	64001	125
D1 BANTAM WITH LUCAS ELECTRICS	YDL	8001	YD1	64001	125
D1 BANTAM WICO ELECTRICS PLUNGER	YD1	8001	YD1S	64001	125
D1 BANTAM LUCAS ELECTRICS PLUNGER	YDL1	8001	YD1S	64001	125
D1 BANTAM WICO PLUNGER GPO	YD1	122911	YD1S	75001	125
C10	ZC10	10001	ZC10	29001	250
C10 PLUNGER	ZC10	10001	ZC10S	2601	250
C10 PLUNGER 4 SPEED	ZC10	10001	ZC10S4	2001	250
C11	ZC11	25001	ZC10	29001	250
C11 PLUNGER	ZC11	25001	ZC10S	2601	250
C11 PLUNGER 4 SPEED	ZC11	25001	ZC10S4	2001	250
B31	ZB31	21001	ZB31	19001	350
B31 PLUNGER	ZB31	21001	ZB31S	17001	350
B32 COMPETITION	ZB32	5001	ZB31	19001	350
B32 COMPETITION PLUNGER	ZB32	5001	ZB31S	17001	350
B32 COMPETITION ALLOY MOTOR	ZB32A	5001	ZB31	19001	350
B32 COMPETITION ALLOY MOTOR PLUNGER	ZB32A	5001	ZB31S	17001	350
B32GS GOLD STAR	ZB32GS	4001	ZB31	19001	350
B32GS GOLD STAR PLUNGER	ZB32GS	4001	ZB32S	4001	350
B32 GOLD STAR CLUBMANS	ZB32GS	6001	ZB31	19001	350
B32GS GOLD STAR CLUBMAN PLUNGER	ZB32GS	6001	ZB32S	4001	350
A7	AA7	5001	ZA7	8001	500
A7 PLUNGER	AA7	5001	ZA7S	26001	500
A7S STAR TWIN PLUNGER	AA7S	101	ZA7S	26001	500
B33	ZB33	11001	ZB31	19001	500
B33 PLUNGER	ZB33	11001	ZB31S	17001	500
B34 COMPETITION	ZB34	4001	ZB31	19001	500
B34 COMPETITION PLUNGER	ZB34	4001	ZB31S	17001	500
B34 COMP DIE CAST ALLOY MOTOR	ZB34A	5001	ZB31	19001	500
B34 COMP SAND CAST ALLOY MOTOR	ZB34A	4001	ZB31	19001	500
B34 COMP DIE CAST ALLOY PLUNGER	ZB34A	5001	ZB31S	17001	500
B34 COMP SAND CAST ALLOY PLUNGER	ZB34A	4001	ZB31S	17001	500
B34GS GOLD STAR DIE CAST ENGINE	ZB34GS	5001	ZB31	19001	500
B34GS GOLD STAR DIE CAST PLUNGER	ZB34GS	5001	ZB32S	4001	500
B34GS GOLD STAR SAND CAST ENGINE	ZB34GS	4001	ZB31	19001	500
B34GS GOLD STAR SAND CAST PLUNGER	ZB34GS	4001	ZB32S	4001	500
M20	ZM20	10001	ZM20	14001	500
M20 PLUNGER	ZM20	10001	ZM20S	301	500
M33	ZM33	5001	ZM20	14001	500
M33 PLUNGER	ZM33	5001	ZM20S	301	500
M21	ZM21	10001	ZM20	14001	600
M21 PLUNGER	ZM21	10001	ZM20S	301	600
A10 GOLDEN FLASH	ZA10	12001	ZA7	8001	650
A10 GOLDEN FLASH PLUNGER	ZA10	12001	ZA7S	26001	650
1953
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM WITH WICO PACY ELECTRICS	BD2	101	BD2	101	125
D1 BANTAM WITH LUCAS ELECTRICS	BD2L	101	BD2	101	125
D1 BANTAM PLUNGER WICO ELECTRICS	BD2	101	BD2S	101	125
D1 BANTAM PLUNGER LUCAS ELECTRICS	BD2L	101	BD2S	101	125
D1 BANTAM WICO PLUNGER GPO	YD1	123250	YD1S	83100	125
D1 BANTAM WICO PLUNGER GPO	BD2	5001	BD2S	10001	125
C10	BC10	101	BC10	101	250
C10 PLUNGER	BC10	101	BC10S	101	250
C10 PLUNGER 4 SPEED	BC10	101	BC10S4	101	250
C11	BC11	101	BC10	101	250
C11 PLUNGER	BC11	101	BC11S	101	250
C11 PLUNGER 4 SPEED	BC11	101	BC10S4	101	250
B31	BB31	101	BB31	101	350
B31 PLUNGER	BB31	101	BB31S	101	350
B32 COMPETITION	BB32	101	BB31	101	350
B32 COMPETITION PLUNGER	BB32	101	BB31S	101	350
B32 COMPETITION ALLOY MOTOR	BB32A	101	BB31	101	350
B32 COMPETITION ALLOY MOTOR PLUNGER	B32A	101	BB31S	101	350
B32GS GOLD STAR	BB32GS	101	BB31	101	350
B32GS GOLD STAR PLUNGER	BB32GS	101	BB32S	101	350
B32GS GOLD STAR SWINGING ARM	BB32GS	101	BB32A	101	350
A7	BA7	101	BA7	101	500
A7 PLUNGER	BA7	101	BA7S	101	500
A7S STAR TWIN PLUNGER	BA7S	101	BA7S	101	500
B33	BB33	101	BB31	101	500
B33 PLUNGER	BB33	101	BB31S	101	500
B34 COMPETITION	BB34	101	BB31	101	500
B34 COMPETITION ALLOY MOTOR	BB34A	101	BB31	101	500
B34 COMPETITION PLUNGER	BB34	101	BB31S	101	500
B34 COMPETITION ALLOY MOTOR PLUNGER	BB34A	101	BB31S	101	500
B34GS GOLD STAR	BB34GS	101	BB31	101	500
B34GS GOLD STAR PLUNGER	BB34GS	101	BB32S	101	500
B34GS GOLD STAR SWINGING ARM	BB34GS	101	BB32A	101	500
M20	BM20	101	BM20	101	500
M20 PLUNGER	BM20	101	BM20S	101	500
M33	BM33	101	BM20	101	500
M33 PLUNGER	BM33	101	BM20S	101	500
M21	BM21	101	BM20	101	600
M21 PLUNGER	BM21	101	BM20S	101	600
A10 GOLDEN FLASH	BA10	101	BA7	101	650
A10 GOLDEN FLASH PLUNGER	BA10	101	BA7S	101	650
A10SF SUPER FLASH PLUNGER	BA10S	101	BA10S	101	650
1954
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM WITH DIRECT ELECTRICS	BD	101	BD2	14600	125
D1 BANTAM WITH BATTERY ELECTRICS	BDB	101	BD2	14600	125
D1 BANTAM DIRECT ELECTRICS PLUNGER	BD	101	BD2S	14600	125
D1 BANTAM BATTERY ELECTRICS PLUNGER	BDB	101	BD2S	14600	125
D1 COMPETITION PLUNGER	BD	101	BD2S	14600	125
D1 BANTAM BATTERY PLUNGER GPO	BDB	5101	BD2S	10100	125
D3 BANTAM WITH DIRECT ELECTRICS	BD3	101	BD2	14600	153
D3 BANTAM WITH BATTERY ELECTRICS	BD3B	101	BD2	14600	153
D3 BANTAM PLUNGER DIRECT ELECTRICS	BD3	101	BD2S	14600	150
D3 BANTAM PLUNGER BATTERY ELECTRICS	BD3B	101	BD2S	14601	150
D3 BANTAM COMPETITION PLUNGER	BD3	101	BD2S	14600	150
C10L	BC10L	101	BC10LS	101	250
C11G	BC11G	101	BC11	101	250
C11G PLUNGER	BC11G	101	BC11S	101	250
C11G PLUNGER 4 SPEED	BC11G	101	BC11S4	10001	250
C11G RIGID	BC11G	101	BC11R	101	250
C11G RIGID 4 SPEED	BC11G	101	BC11R4	101	250
B31	BB31	6001	BB31	1386	350
B31 PLUNGER	BB31	6001	BB31S	5895	350
B31 SWINGING ARM FRAME	BB31	6001	CB31	101	350
B32 COMPETITION ALLOY MOTOR	BB32A	201	BB32R	121	350
B32 COMPETITION ALLOY SWINGING ARM	BB32A	201	CB31	101	350
B32GS GOLD STAR SWINGING ARM	BB32GS	1001	CB32	101	350
B32GS GOLD STAR NEW CLBMAN S/A	CB32GS	101	CB32	101	350
A7 PLUNGER	BA7	2001	BA7S	8950	500
A7 SWINGING ARM	CA7	101	CA7	101	500
A7S STAR TWIN PLUNGER	BA7S	2001	BA7S	8950	500
A7SS SHOOTING STAR SWINGING ARM	CA7SS	101	CA7	101	500
B33	BB33	2001	BB31	1386	500
B33 PLUNGER	BB33	2001	BB31S	5895	500
B33 SWINGING ARM	BB33	2001	CB31	101	500
B34 COMPETITION ALLOY MOTOR	BB34A	201	BB32R	121	500
B34 COMPETITION ALLOY SWINGING ARM	BB34A	201	CB31	101	500
B34GS GOLD STAR SWINGING ARM	BB34GS	1001	CB32	101	500
B34GS GOLD STAR NEW CLUBMAN S/A	CB34GS	101	CB32	101	500
B34GSD GOLD STAR DAYTONA	BB34GSD	101	CB32D	101	500
M20	BM20	1001	BM20	1502	500
M20 PLUNGER	BM20	1001	BM20S	1192	500
M33	BM33	501	BM20	1502	500
M33 PLUNGER	BM33	501	BM20S	1192	500
M21	BM21	1601	BM20	1502	600
M21 PLUNGER	BM21	1601	BM20S	1192	600
A10 GOLDEN FLASH PLUNGER	BA10	7001	BA7S	8950	650
A10 GOLDEN FLASH SWINGING ARM	CA10	101	CA7	101	650
A10SF SUPER FLASH PLUNGER	BA10S	701	BA10S	701	650
A10SF SUPER FLASH	CA10S	101	--	--	650
A10R ROAD ROCKET SWINGING ARM	CA10R	101	CA7	101	650
1955
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM WITH DIRECT ELECTRICS	DD	101	BD2	34701	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	101	BD2	34701	125
D1 BANTAM PLUNGER DIRECT LIGHTING	DD	101	BD2S	34701	125
D1 BANTAM PLUNGER BATTERY ELECTRICS	DDB	101	BD2S	34701	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	5201	BD2S	40001	125
D3 BANTAM WITH DIRECT ELECTRICS	BD3	5138	BD2	34701	153
D3 BANTAM WITH BATTERY ELECTRICS	BD3B	5138	BD2	34701	153
D3 BANTAM PLUNGER DIRECT LIGHTING	BD3	5138	BD2S	34701	150
D3 BANTAM PLUNGER BATTERY ELECTRICS	BD3B	5138	BD2S	34701	150
C10L	BC10L	4001	BC10LS	4501	250
C11G PLUNGER	BC11G	11501	BC11S	4001	250
C11G PLUNGER 4 SPEED	BC11G	11501	BC11S4	14001	250
C11G RIGID	BC11G	11501	BC11R	801	250
C11G RIGID 4 SPEED	BC11G	11501	BC11R4	501	250
B31 PLUNGER	BB31	15001	BB31S	12001	350
B31 SWINGING ARM	BB31	15001	CB31	6001	350
B32 COMPETITION ALLOY MOTOR	BB32A	251	BB32A	201	350
B32GS GOLD STAR SWINGING ARM	BB32GS	2001	CB32	1501	350
B32GS GOLD STAR CLUBMAN SWINGNG ARM	CB32GS	501	CB32	1501	350
B32GS GOLD STAR 1956 MODEL S/A	DB32GS	101	CB32	4001	350
A7 SWINGING ARM	CA7	1501	CA7	7001	500
A7SS SHOOTING STAR SWINGING ARM	CA7SS	501	CA7	7001	500
B33 PLUNGER	BB33	5001	BB31S	12001	500
B33 SWINGING ARM	BB33	5001	CB31	6001	500
B34 COMPETITION ALLOY MOTOR	BB34A	301	BB32A	201	500
B34GS GOLD STAR SWINGING ARM	BB34GS	2001	CB32	1501	500
B34GS GOLD STAR CLUBMAN SWINGNG ARM	CB34GS	501	CB32	1501	500
B34GS GOLD STAR 1956 M0DEL SWING ARM	DB34GS	101	CB32	4001	500
M20	BM20	2501	BM20	4001	500
M20 PLUNGER	BM20	2501	BM20S	4001	500
M33	BM33	1301	BM20	4001	500
M33 PLUNGER	BM33	1301	BM20S	4001	500
M21	BM21	4501	BM20	4001	600
M21 PLUNGER	BM21	4501	BM20S	4001	600
A10 GOLDEN FLASH PLUNGER	BA10	11001	BA7S	15001	650
A10 GOLDEN FLASH SWINGING ARM	CA10	4501	CA7	7001	650
A10R ROAD ROCKET SWINGING ARM	CA10R	601	CA7	7001	650
1956
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM WITH DIRECT ELECTRICS	DD	4801	BD2S	55001	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	3301	BD2S	55001	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	5362	BD2S	55001	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	5662	BD2S	60001	125
D3 BANTAM WITH DIRECT ELECTRICS	BD3	10401	CD3	101	150
D3 BANTAM WITH BATTERY ELECTRICS	BD3B	12801	CD3	101	150
C10L	BC10L	7001	DC10S	101	250
C11G	BC11G	23001	BC11S4	18001	250
C12	BC11G	23001	EC12	101	250
B31	BB31	22001	EB31	101	350
B32 COMPETITION ALLOY CLIPPER	BB32A	301	CB34	101	350
B32GS GOLD STAR SWINGING ARM	DB32GS	501	CB32	4001	350
A7 SWINGING ARM	CA7	2701	EA7	101	500
A7SS SHOOTING STAR SWINGING ARM	CA7SS	2301	EA7	101	500
B33	BB33	7301	EB31	101	500
B34 COMPETITION ALLOY CLIPPER	BB34A	351	EB34	101	500
B34GS GOLD STAR	DB34GS	501	CB32	4001	500
B34GS GOLD STAR NEW HEAD	DBD34GS	2001	CB32	4001	500
B34GS GOLD STAR RIGID USA	DB34GS	501	BB32R	301	500
M33	BM33	2101	BM20	7001	500
M33 PLUNGER	BM33	2101	BM20S	8001	500
M21	BM21	7501	BM20	7001	600
M21 PLUNGER	BM21	7501	BM20S	8001	600
A10 GOLDEN FLASH PLUNGER	BA10	14001	BA7S	18001	650
A10 GOLDEN FLASH SWINGING ARM	CA10	8001	EA7	101	650
A10R ROAD ROCKET SWINGING ARM	CA10R	2001	EA7	101	650
1957
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
DANDY	DSE	101	DS	101	70
DANDY WITH LUCAS ELECTRICS	DSEL	101	DS	101	70
D1 BANTAM WITH DIRECT ELECTRICS	DD	7032	BD2S	61018	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	5152	BD2S	61017	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	6271	BD2S	61492	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	7001	BD2S	63000	125
D3 BANTAM WITH DIRECT ELECTRICS	BD3	13481	CD3	9486	150
D3 BANTAM WITH BATTERY ELECTRICS	BD3B	18698	CD3	9484	150
C10L	BC10L	9612	DC10S	2574	250
C12	BC11G	33009	EC12	8998	250
B31	BB31	26036	EB31	5836	350
B32 COMPETITION ALLOY MOTOR	BB32A	--	CB32	--	350
B32GS GOLD STAR SWINGING ARM	DB32GS	501	CB32	4001	350
A7	CA7	4269	EA7	7392	500
A7SS SHOOTING STAR	CA7SS	3500	EA7	7401	500
B33	BB33	8320	EB31	5819	500
B34 COMPETITION ALLOY MOTOR	BB34A	--	CB32	--	500
B34GS GOLD STAR SWINGING ARM	DB34GS	501	CB32	4001	500
B34GS GOLD STAR NEW HEAD	DBD34GS	2001	CB32	4001	500
B34GS GOLD STAR RIGID USA	DB34GS	501	BB32R	301	500
M20	BM20	4540	BM20	8890	500
M20 PLUNGER	BM20	4881	BM20S	4793	500
M33	BM33	2552	BM20	8965	500
M33 PLUNGER	BM33	2665	BM20S	9355	500
M21	BM21	9820	BM20	8808	600
M21 PLUNGER	BM21	9581	BM20S	9326	600
A10 GOLDEN FLASH PLUNGER	BA10	15445	BA7S	19698	650
A10 GOLDEN FLASH SWINGING ARM	CA10	11392	EA7	7378	650
A10R ROAD ROCKET SWINGING ARM	CA10R	3711	EA7	7327	650
A10S SPITFIRE SCRAMBLER	CA10SR	101	CA7A	101	650
1958
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
DANDY	DSE	11001	DS	11501	70
DANDY WITH LUCAS ELECTRICS	DSEL	11001	DS	11501	70
DI BANTAM WITH DIRECT ELECTRICS	DD	8577	BD2S	65001	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	7849	BD2S	65001	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	8301	BD2S	66001	125
D5 BANTAM WITH DIRECT ELECTRICS	ED5	101	FD5	101	175
D5 BANTAM WITH BATTERY ELECTRICS	ED5B	101	FD5	101	175
C12	BC11G	40001	EC12	16001	250
B31 ALTERNATOR	GB31	101	FB31	101	350
A7	CA7	5001	FA7	101	500
A7SS SHOOTING STAR	CA7SS	4501	FA7	101	500
B33 ALTERNATOR	GB33	101	FB31	101	500
B34GS GOLD STAR	DBD34GS	3001	CB32	7001	500
M21	BM21	11001	BM20	10001	600
M21 PLUNGER	BM21	11001	BM20S	11001	600
A10 GOLDEN FLASH	DA10	651	FA7	101	650
A10R SUPER ROCKET	CA10R	6001	FA7	101	650
A10S SPITFIRE SCRAMBLER	CA10SR	340	CA7A	327	650
1959
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
DANDY	DSE	14462	DS	15165	70
DANDY WITH LUCAS ELECTRICS	DSEL	14462	DS	15165	70
D1 BANTAM WITH BATTERY ELECTRICS	DDB	10628	BD2S	67581	125
D1 BANTAM WITH DIRECT ELECTRICS	DD	10812	BD2S	67581	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	11401	BD2S	69000	125
D7 BANTAM WITH BATTERY ELECTRICS	ED7B	101	D7	101	175
D7 BANTAM WITH DIRECT ELECTRICS	ED7	101	D7	101	175
B2 SUNBEAM SCOOTER	W	101	--	101B	250
B2S SUNBEAM SCOOTER ELECTRIC START	W	101E	--	101B	250
C15 STAR	C15	101	C15	101	250
C15 SCRAMBLES	C15S	101	C15S	101	250
C15 TRIALS	C15T 101	C15S	101	250
B31 ALTERNATOR	GB31	1909	FB31	2572	350
B34GS GOLD STAR	DB32GS	1501	CB32	7873	350
A7	CA7	5867	FA7	8522	500
A7SS SHOOTING STAR	CA7SS	5425	FA7	8522	500
B33 ALTERNATOR	GB33	662	FB31	2572	500
B34GS GOLD STAR	DBD34GS	3753	CB32	7873	500
B34GS GOLD STAR CATALINA	DBD34GS	3753	CB32C	101	500
M21	BM21	12033	BM20	10313	600
M21 PLUNGER	BM21	12033	BM20S	12031	600
A10 GOLDEN FLASH	DA10	4616	FA7	8522	650
A10R SUPER ROCKET	CA10R	8193	FA7	8522	650
A10S SPITFIRE SCRAMBLER	CA10SR	770	FA7A	101	650
1960
Model	Engine prefix	Engine sequence	Frame prefix	Frame sequence	CC
DANDY	DSE	17901	DS	18001	70
DANDY WITH LUCAS ELECTRICS	DSEL	17901	DS	18001	70
D1 BANTAM WITH DIRECT ELECTRICS	DD	12501	BD2S	70501	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	12501	BD2S	70501	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	13516	BD2S	72001	125
B1 SUNBEAM SCOOTER	S	101	none	4001	175
D7 BANTAM WITH DIRECT ELECTRICS	ED7	1501	D7	8101	175
D7 BANTAM WITH BATTERY ELECTRICS	ED7B	7001	D7	8101	175
B2 SUNBEAM SCOOTER	W	3201	none	4001	250
B2S SUNBEAM SCOOTER ELECTRIC START	W	3201E	none	4001	250
C15 STAR	C15	11001	C15	11101	250
C15 SCRAMBLES	C15S	301	C15S	501	250
C15 TRIALS	C15T	301	C15S	501	250
B32GS GOLD STAR	DB32GS	1601	CB32	8701	350
A7	CA7	7101	GA7	101	500
A7SS SHOOTING STAR	CA7SS	6701	GA7	101	500
B33 ALTERNATOR	GB33	1001	GB33	101	500

B34GS GOLD STAR	DBD34GS	4601	CB32	8701	500
B34GS GOLD STAR CATALINA	DBD34GS	4601	CB32C	351	500
M21	BM21	12901	BM20	10451	600
M21 PLUNGER	BM21	12901	BM20S	12031	600
A10 GOLDEN FLASH	DA10	7801	GA7	101	650
A10R SUPER ROCKET	DA10R	101	GA7	101	650
A10S SPITFIRE SCRAMBLER	DA10SR	101	GA7A	101	650

1961
Model	Engine prefix (Model Code)	Engine sequence	Frame prefix	Frame sequence	CC
DANDY	DSE	21651	DS	21801	70
DANDY WITH LUCAS ELECTRICS	DSEL	21651	DS	21801	70
D1 BANTAM WITH DIRECT ELECTRICS	DD	14501	BD2S	73701	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	14501	BD2S	73701	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	15201	BD2S	75001	125
B1 SUNBEAM SCOOTER	S	6720	B	18801	175
D7 BANTAM WITH DIRECT ELECTRICS	ED7	3001	D7	18401	175
D7 BANTAM WITH BATTERY ELECTRICS	ED7B	15501	D7	18401	175
B2 SUNBEAM SCOOTER	W	11790	none	18800B	250
B2S SUNBEAM SCOOTER ELECTRIC START	W	11790E	none	18800B	250
B2 SUNBEAM SCOOTER NEW EXHAUST	W	16582	none	27407B	250
B2S SCOOTER ELECTRIC ST NEW EXHAUST	W	16582E	none	27407B	250
C15 STAR	C15	21251	C15	22001	250
C15 SS80 SPORTS STAR 80	C15SS	101	C15	22001	250
C15 SCRAMBLES	C15S	2112	C15S	2701	250
C15 TRIALS	C15T	1056	C15S	2701	250
B32GS GOLD STAR	DB32GS	1741	CB32	10101	350
B40 STAR	B40	101	B40	101	350
A7	CA7	8501	GA7	11101	500
A7 ALTERNATOR	CA7A	8501	GA7	11101	500
A7 SHOOTING STAR	CA7SS	8001	GA7	11101	500
DB34GS GOLD STAR	DBD34GS	5684	CB32	10101	500
DB34GS GOLD STAR CATALINA	DBD34GS	5684	CB32C	601	500
M21	BM21	14301	BM20S	14201	600
M21 ALTERNATOR	BM21A	14301	BM20S	14201	600
A10 GOLDEN FLASH	DA10	13201	GA7	11101	650
A10 GOLDEN FLASH ALTERNATOR	DA10A	13201	GA7	11101	650
A10R SUPER ROCKET	DA10R	3001	GA7	11101	650
A10S SPITFIRE SCRAMBLER	DA10SR	401	GA7A	401	650

1962
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
DANDY	DSE	22164	DS	22268	70
DANDY WITH LUCAS ELECTRICS	DSEL	22164	DS	22268	70
D1 BANTAM WITH DIRECT ELECTRICS	DD	15481	BD2S	76680	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	16413	BD2S	76680	125
D1 BANTAM BATTERY PLUNGER GPO	DDB	17001	BD2S	78001	125
B1 SUNBEAM SCOOTER	S	11407	B	30140	175
D7 BANTAM WITH DIRECT ELECTRICS	ED7	4501	D7	27450	175
D7 BANTAM WITH BATTERY ELECTRICS	ED7B	23001	D7	27450	175
B2 SUNBEAM SCOOTER	W	17800	none	30140B	250
B2S SUNBEAM SCOOTER ELECTRIC START	W	17800E	none	30140B	250
C15 STAR	C15	29839	C15	31801	250
C15 SS80 SPORTS STAR 80	C15SS	1101	C15	31801	250
C15 SCRAMBLES	C15S	3101	C15S	3558	250
C15 TRIALS	C15T	1451	C15S	3558	250
C15 SCRAMBLES SPECIAL	C15S	3101	C15S	10001	250
C15 TRIALS SPECIAL	C15T	1451	C15S	10001	250

B32GS GOLD STAR	DB32GS	1794	CB32	11001	350
B40 STAR	B40	3601	B40	3511	350
B40 SS90 SPORTS STAR 90	B40BSS	101	B40	3511	350
A50 STAR TWIN CABLE REAR BRAKE	A50	101	A50	101	500
A50 STAR TWIN ROD REAR BRAKE	A50	101	A50A	101	500
A7	CA7	9714	GA7	21120	500
A7 ALTERNATOR	CA7A	9714	GA7	21120	500
A7SS SHOOTING STAR	CA7SS	9277	GA7	21120	500
B34GS GOLD STAR	DBD34GS	6504	CB32	11001	500
B34GS GOLD STAR CATALINA	DBD34GS	6504	CB32C	741	500
M21	BM21	15453	BM20S	15061	600
M21 ALTERNATOR	BM21A	15453	BM20S	15061	600
A10 GOLDEN FLASH	DA10	17181	GA7	21120	650
A10 GOLDEN FLASH ALTERNATOR	DA10A	341	GA7	21120	650
A10R SUPER ROCKET	DA10R	5958	GA7	21120	650
A10S SPITFIRE SCRAMBLER	DA10R	6084	GA7A	557	650
A10RGS ROCKET GOLD STAR	DA10R	5958	GA10	101	650
A65 STAR TWIN CABLE REAR BRAKE	A65	101	A50	101	650
A65 STAR TWIN ROD REAR BRAKE	A65	101	A50A	101	650

1963
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
D1 BANTAM WITH DIRECT ELECTRICS	DD	16129	BD2S	78746	125
D1 BANTAM WITH BATTERY ELECTRICS	DDB	17606	BD2S	78746	125
B1 SUNBEAM SCOOTER	S	12498	B	31825	175
D7 BANTAM WITH DIRECT ELECTRICS	ED7	5505	D7	33268	175
D7 BANTAM WITH BATTERY ELECTRICS	ED7B	26904	D7	33268	175
D7 BANTAM AMERICA	ED7A	5505	D7	33268	175
D7 BANTAM AMERICA WITH BATTERY	ED7BA	26904	D7	33268	175
D7 BANTAM POLICE	ED7BP	26904	D7	33268	175
D7 BANTAM TRAIL	ED7	5505	D7	33268T	175
B2 SUNBEAM SCOOTER	W	18485	none	31825B	250
B2S SUNBEAM SCOOTER ELECTRIC START	W	18485E	none	31825B	250
C15 STAR	C15	41807	C15	38035	250
C15 POLICE	C15P	41801	C15	38035	250
C15 SS80 SPORTS STAR 80	C15SS	2705	C15	38035	250
C15 SCRAMBLES	C15S	4001	C15C	101	250
C15 STAR AMERICA	C15B	409	C15	38035	250
C15 STARFIRE ROADSTER	C15	41807	C15C	101	250
C15 STARFIRE ROADSTER	C15SR	101	C15C	266	250
C15 TRIALS	C15T	2001	C15C	101	250
C15 TRIALS PASTORAL	C15T	1602	C15A	137	250
B40 STAR	B40	4506	B40	5017	350
B40 SS90 SPORTS STAR 90	B40SS	180	B40	5017	350
B40 STAR USA	B40B	563	B40	5017	350
A50 STAR TWIN ROD REAR BRAKE	A50	823	A50	2288	500
B34GS GOLD STAR	DBD34GS	6881	CB32	11451	500
B34GS GOLD STAR CATALINA	DBD34GS	6881	CB32C	857	500
M21	BM21	15588	BM20S	600
M21 ALTERNATOR	BM21A	15588	BM20S	15159	600
A10 GOLDEN FLASH	DA10	17727	GA7	23643	650
A10 GOLDEN FLASH ALTERNATOR	DA10A	17727	GA7	23643	650
A10R SUPER ROCKET	DA10R	8197	GA7	23643	650
A10S SPITFIRE SCRAMBLER	DA10R	7944	GA7A	742	650
A10RGS ROCKET GOLD STAR	DA10R	8197	GA10	390	650
A65 STAR TWIN ROD REAR BRAKE	A65	1947	A50	2288	650



1964
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
BEAGLE	K1	101	K1	101	75
STARLITE 75	K1A	101	K1	101	75
D1 BANTAM BATTERY PLUNGER GPO	DDB	18514	BD2S	81000	125
B1 SUNBEAM SCOOTER	S	13263	B	33661	175
D7 BANTAM WITH DIRECT ELECTRICS	ED7	6887	D7	38400	175
D7 BANTAM WITH BATTERY ELECTRICS	FD7	101	D7	38400	175
D7 BANTAM AMERICA	ED7A	6887	D7	38400	175
D7 BANTAM BATTERY AMERICA	FD7A	101	D7	38400	175
D7 BANTAM TRAIL	ED7	6887	D7	38400T	175
C15 STAR	C15D	101	C15	42211	250
C15 SS80 SPORTS STAR 80	C15SS	3633	C15	42211	250
C15 POLICE	C15DP	101	C15	42211	250
C15 STAR AMERICA	C15DB	101	C15	42211	250
C15 SCRAMBLES	C15S	4373	C15C	853	250
C15 STARFIRE ROADSTER	C15SR	225	C15C	853	250
C15 TRAILS PASTORAL	C15T	2116	C15E	101	250
C15 TRIALS	C15T	2116	C15C	853	250
B40 STAR	B40	5275	B40	6668	350
B40 POLICE	B40P	5275	B40	6668	350
B40 SUPER STAR USA	B40B	1088	B40	6668	350
B40 SS90 SPORTS STAR 90	B40SS	426	B40	6668	350
B40 ENDURO STAR USA	B40T	143	C15C	1601	350
A50 STAR	A50A	101	A50	5501	500
A50 POLICE	A50AP	101	A50	5501	500
A50C CYCLONE	A50B	101	A50B	101	500
A65 STAR	A65A	101	A50	5501	650
A65 POLICE	A65AP	101	A50	5501	650
A65R ROCKET	A65B	101	A50B	101	650
A65T THUNDERBOLT ROCKET	A65B	101	A50	5501	650
A65R ROCKET WITH REV COUNTER	A65C	101	A50	5501	650
A65L/R LIGHTNING ROCKET	A65D	101	A50B	101	650
A65SH SPITFIRE HORNET	A65E	101	A50B	101	650

1965
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
BEAGLE	K1	3507	K1	3315	75
STARLITE 75	K1A	3507	K1	3315	75
D1 BANTAM BATTERY PLUNGER GPO	DDB	19201	BD2S	82001	125
B1 SUNBEAM SCOOTER	S	13576	B	34300	175
D7 BANTAM WITH DIRECT ELECTRICS	ED7	9001	D7	42878	175
D7 BANTAM WITH BATTERY ELECTRICS	FD7	3001	D7	42878	175
D7 BANTAM PASTORAL	ED7	9001	D7	42878	175
D7 BANTAM TRAIL BRONC	ED7	9001	D7	42878	175
C15 STAR	C15F	101	C15	45501	250
C15 STAR AMERICA	C15FB	101	C15	45501	250
C15 POLICE	C15FP	101	C15	45501	250
C15 SS80 SPORTS STAR 80	C15FSS	101	C15	45501	250
C15 SCRAMBLES	C15FS	101	C15C	1601	250
C15 STARFIRE ROADSTER	C15FSR	101	C15C	1601	250
C15 TRIALS	C15FT	101	C15C	1601	250
C15 TRIALS CAT	C15FT	101	C15C	1601	250
C15 TRIALS PASTORAL	C15FT	101	C15E	136	250
B40 STAR	B40F	101	B40	7775	350
B40 POLICE	B40FP	101	B40	7775	350
B40 SS90 SPORTS STAR 90	B40FSS	101	B40	7775	350
B40 ENDURO STAR USA	B40FE	101	C15C	1601	350

B40 SPORTSMAN USA	B40FB	101	B40	7775	350
A50 STAR	A50A	686	A50	8437	500
A50 POLICE	A50AP	121	A50	8437	500
A50 CYCLONE COMPETITION UK	A50DC	101	A50B	4001	500
A50 CYCLONE UK	A50DC	101	A50B	4001	500
A50C CYCLONE ROAD MODEL	A50D	101	A50B	4001	500
A50CC CYCLONE COMPETITION	A50B	507	A50B	4001	500
A65 STAR	A65A	1134	A50	8437	650
A65 POLICE	A65AP	267	A50	8437	650
A65 LIGHTNING	A65DC	2158	A50B	4001	650
A65 LIGHTNING CLUBMAN	A65DC	2158	A50B	4001	650
A65L LIGHTNING ROCKET	A65D	1742	A50B	4001	650
A65R ROCKET	A65B	334	A50	8437	650
A65R ROCKET WITH REV COUNTER	A65C	1082	A50	8437	650
A65SH SPITFIRE HORNET	A65E	701	A50B	4001	650

1966
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
D7 SILVER BANTAM	ED7	101	D7	49985	175
D7 BANTAM DE-LUXE	ED7	101	D7	49985	175
D7 BANTAM SILVER AND DE-LUXE	GD7	101	GD7	101	175
D7 BANTAM GPO	HD7	101	HD7	101	175
C15 STAR	C15F	2089	C15	49001	250
C15 SPORTSMAN	C15FSS	2001	C15	49001	250
B40 STAR	B40F	1149	B40	9937	350
B40 STAR MODIFIED ENGINE	B40G	101	B40	9973	350
B44 VICTOR GRAND PRIX	B44	101	B44	101	440
B44 VICTOR ENDURO	B44E	101	B44E	3137	441
A50R ROYAL STAR	A50R	101	A50C	101	500
A50W WASP	A50W	101	A50C	101	500
A65T THUNDERBOLT	A65T	101	A50C	101	650
A65L LIGHTNING	A65L	101	A50C	101	650
A65LC LIGHTNING CLUBMAN	A65LC	101	A50C	101	650
A65S SPITFIRE MK11	A65S	101	A50C	101	650
A65H HORNET	A65H	101	A50C	101	650

1967
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
D10 BANTAM 3 SPEED SILVER	D10	101	D10	101	175
D10 BANTAM GPO	D10	101	D10	101	175
D10 BANTAM 4 SPEED SUPREME	D10A	101	D10A	101	175
D10 BANTAM 4 SPEED SPORT	D10A	101	D10A	101	175
D10 BUSHMAN	D10A	101	BD10A	101	175
D10 BUSHMAN PASTORAL	D10A	101	BD10A	101	175
B25 STARFIRE USA	C25	101	B25	101	250
C15 STAR	C15G	101	C15G	101	250
C15 POLICE	C15PG	101	C15PG	101	250
C15 SPORTSMAN	C15SG	101	C15SG	101	250
C25 BARRACUDA	C25	101	C25	101	250
B40 STAR	B40G	201	B40G	201	350
B40 MILITARY	B40GB	101	B40GB	101	350
B40 MILITARY AUSTRALIA	B40GA	101	B40GA	101	350
B44 VICTOR GRAND PRIX	B44	131	B44	267	441
B44 VICTOR ENDURO	B44EA	101	B44EA	101	441
B44 VICTOR ROADSTER	B44R	101	B44R	101	441
A50R ROYAL STAR	A50RA	101	A50RA	101	500
A50W WASP	A50WA	101	A50WA	101	500

A65T THUNDERBOLT	A65TA	101	A65TA	101	650
A65L LIGHTNING	A65LA	101	A65LA	101	650
A65SA SPITFIRE MKIII	A65SA	101	A65SA	101	650
A65H HORNET	A65HA	101	A65HA	101	650

1968
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
D13 BANTAM SUPREME	D13B	101	D13B	101	175
D13 BANTAM SPORTS	D13B	101	D13B	101S	175
D13 BANTAM BUSHMAN	D13C	101	D13C	101B	175
D14/4 BANTAM	D14B	781	D14B	781	175
D14/4 SPORTS	D14B	781	D14B	781S	175
D14/4 BANTAM BUSHMAN	D14C	781	D14C	101B	175
B25 STARFIRE	B25B	101	B25B	101	250
B25 FLEETSTAR	B25FS	101	B25FS	101	250
B40 MILITARY	B40M	101	B40M	101	350
B40 MILITARY DANISH	B40GD	101	B40GD	101	350
B44 SHOOTING STAR	B44B	101	B44B	101SS	441
B44 VICTOR SPECIAL	B44B	101	B44B	101VS	441
A50R ROYAL STAR	A50RB	101	A50RB	101	500
A50W WASP	A50WB	101	A50WB	101	500
A65T THUNDERBOLT	A65TB	101	A65TB	101	650
A65L LIGHTNING	A65LB	101	A65LB	101	650
A65F FIREBIRD SCRAMBLER	A65FB	101	A65FB	101	650
A65S SPITFIRE MKIV	A65SB	101	A65SB	101	650

1969 The underscore (_)indicates a preceeding letter
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
B175 BANTAM	D175	_C101	D175	101	175
B175 BANTAM BUSHMAN	D175B	_C101	D175B	101	175
B25 STARFIRE	B25S	_C101	B25S	101	250
B25FS FLEETSTAR	B25FS	_C101	B25FS	101	250
B40 MILITARY	B40GR	_C201	B40GR	201	350
B40 MILITARY (ARMY)	B40GB	_C3001	B40GB	3001	350
B40 MILITARY (NAVY)	B40GN	_C101	B40GN	101	350
B40 MILITARY DANISH	B40GD	_C750	B40WD	750	350
B40 ROUGHRIDER	HCB40	_C462	HCB40	462M	350
B44SS SHOOTING STAR	B44SS	_C101	B44SS	101	441
B44VS VICTOR SPECIAL	B44VS	_C101	B44VS	101	441
A50 ROYAL STAR	A50RC	_C101	A50RC	101	500
A65T THUNDERBOLT	A65TC	_C101	A65TC	101	650
A65L LIGHTNING	A65LC	_C101	A65LC	101	650
A65F FIREBIRD SCRAMBLER	A65FC	_C101	A65FC	101	650
A75 ROCKET III	A75R	_C101	A75R	101	750
A75 ROCKET III 5 SPEED	A75RV	_C101	A75RV	101	750

1970 The underscore (_)indicates a preceeding letter
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
B175 BANTAM	D175	_D101	D175	101	175
B175 BANTAM BUSHMAN	D175B	_D101	D175B	101	175
B25 STARFIRE	B25S	_D101	B25S	101	250
B25FS FLEETSTAR	B25FS	_D101	B25FS	101	250
B40 MILITARY DANISH	B40GD	_D1001	B40GD	1001	350
B44 SHOOTING STAR	B44SS	_D101	B44SS	101	441
B44 VICTOR SPECIAL	B44VS	_D101	B44VS	101	441
A50 ROYAL STAR	A50R	_D101	A50R	101	500

A65 THUNDERBOLT	A65T	_D101	A65T	101	650
A65 LIGHTNING	A65L	_D101	A65L	101	650
A65 FIREBIRD SCRAMBLER	A65F	_D101	A65F	101	650
A75 ROCKET III	A75R	_D101	A75R	101	750
A75 ROCKET III 5 SPEED	A75RV	_D101	A75RV	101	750

1971 The underscore (_)indicates a preceeding letter
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
B175 BANTAM	D175	_E101	D175	101	175
B25 VICTOR TRAIL	B25T	_E101	B25T	101	250
B25FS FLEETSTAR	B25FS	_E101	B25FS	101	250
B25SS GOLD STAR 250	B25SS	_E101	B25SS	101	250
E35R FURY	E35R	_E101	E35R	101	350
E35SS FURY SS	E35SS	_E101	E35SS	101	350
B50 MOTOR CROSS	B50MX	_E101	B50MX	101	500
B50 VICTOR TRAIL	B50T	_E101	B50T	101	500
B50SS GOLD STAR 500	B50SS	_E101	B50SS	101	500
A65 THUNDERBOLT	A65T	_E101	A65T	101	650
A65 LIGHTNING	A65L	_E101	A65L	101	650
A65 FIREBIRD SCRAMBLER	A65FS	_E101	A65FS	101	650
A75 ROCKET III	A75R	_E101	A75R	101	750
A75 ROCKET III 5 SPEED	A75V	_E101	A75V	101	750

1972 The underscore (_)indicates a preceeding letter
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
ARIEL 3	K2	101	K2	101	48
B50 MOTOR CROSS	B50MX	_G101	B50MX	101	500
B50 VICTOR TRIAL	B50T	_G101	B50T	101	500
B50SS GOLD STAR 500	B50SS	_G101	B50SS	101	500
A65 THUNDERBOLT	A65T	_G101	A65	101	650
A65 LIGHTNING	A65L	_G101	A65	101	650
A70 LIGHTNING 750	A70L	_G101	A70L	101	750
A75 ROCKET III	A75R	_G101	A75R	101	750
A75 ROCKET III 5 SPEED	A75V	_G101	A75V	101	750

1973 The underscore (_)indicates a preceeding letter
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
ARIEL 3	K2	101	K2	101	48
B50 MOTOR CROSS	B50MX	_H101	B50MX	101	500

1974
Model	Engne prefix	Engine sequence	Frame prefix	Frame sequence	CC
ARIEL 3	K2	101	K2	101	48
T65	T65	101	T65	101	650

Engine and Frame Numbers

Pick a year if you have a general understanding of their meaning or read the follow general understanding below:

FRAME NUMBERS

ENGINE NUMBERS

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix

Frame sequence

CC

Model

Engine prefix

Engine sequence

Frame prefix