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BSA Models 1921 to 1930

 

1921

       

Model

Engne prefix

Engine sequence

Frame prefix

Frame sequence

CC

6/7 H.P. TWIN   100 T 100 770
         

1922

       

Model

Engne 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

Engne 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

Engne 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

Engne 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

Engne 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

Engne 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

Engne 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

Engne 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

Engne 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
         
Ā© BSAOC 1997, 1998, 1999, 2000. All rights reserved.

Pre 1929 markings are based on listings available to the Club but do NOT have any form of cross referencing, therefore there is no way of checking their accuracy. Post 1929, the listing are cross referenced by the despatch books and by contemporary listings in parts books and dealer service sheets, where available. This cross referencing is available for most models up to the closure of the factory. However we are currently revising the pre 1929 lists which we are cross referencing with machine which we have personally scrutinised and verified. We need your assistance to help us on this and request that anybody who has pre 1929 BSA bikes write to the machine dating officer Brian Pollitt (address below) with details of your machine and photos of the complete bike plus detailed photos of the engine. All photos will be returned.

BSAOC pre1929 Machine Dating.

Brian Pollitt

16 Dane Avenue

Ā Partington

Manchester

M31 4GB