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AJS Motorcycles

AJS Models 1910-1940

Prefixes were used to denote year of manufacture from 1925 on: E = 1925, G = 1926, H = 1927 etc.

1910-1911 Models
A SV 70 x 76 292cc
B SV 70 x 76 292cc

1912 Models
A SV 70 x 82 315cc
B SV 70 x 82 315cc
D 70 x 82 631cc V-twin

1913 Models
B SV 70 x 91 349cc
D 74 x 81 696cc SV V-twin

1914 Models
A 65 x 83 550cc V-twin
B SV 70 x 91 349cc
D 74 x 87 748cc V-twin

1915 Models
B SV 70 x 91 349cc
D 74 x 87 748cc V-twin

1916 Models

A 65 x 83 550cc V-Twin
B SV 74 x 81 349cc
D 74 x 87 748cc V-Twin

1917-1918 Models
D 74 x 87 748cc V-Twin

1918-1920 Models
D 74 x 87 748cc V-Twin

1921 Models
B SV 74 x 81 349cc
D 74 x 93 799cc V-twin

1922 Models
B, B1, B2 SV 74 x 81 349cc
D 74 x 93 799cc V-twin

1923 Models
B, B1 SV 74 x 81 349cc
D 74 x 93 799cc V-twin
T.T. OHV 74 x 81 349cc Competition

1924 Models
B, B1, B5 SV 74 x 81 349cc
B3 74 x 81 349cc OHV
D, D1 74 x 93 799cc V-Twin
B4 OHV 74 x 81 349cc Competition

1925 Models
E1 74 x 93 799cc Sidevalve V-twin
E2 74 x 93 799cc Sidevalve V-twin
E3, E4, E5 SV 74 x 81 349cc
E6 OHV 74 x 81 349cc
E7 OHV 74 x 81 349cc Competition

1926 Models
G1 74 x 93 799cc Sidevalve V-twin
G2 74 x 93 799cc Sidevalve V-twin
G3, G4, G5 SV 74 x 81 349cc
G6 OHV
G7 74 x 81 349cc OHV
GR7 OHV 74 x 81 349cc Competition | GR7 Article
G8 84 x 90 498cc
G10 84 x 90 498cc Competition | G10 Article

1927 Models
H1 74 x 93 799cc Sidevalve V-twin, Lucas magdyno
H2 74 x 93 799cc Sidevalve V-twin, Lucas magneto
H3, H4, H5 SV 74 x 81 349cc
H6 OHV
H8, H10 84 x 90 498cc
H9 SV
H7 OHV 74 x 81 349cc Competition
H10 84 x 90 498cc Competition

1928 Models
K1 74 x 93 799cc V-Twin
K2 V-Twin
K3, K4, K5 SV 74 x 81 349cc
K6 OHV
K7 OHC 74 x 81 349cc Competition
K8 OHV 84 x 90 498cc
K9 SV
K10 OHC 84 x 90 498cc Competition
K12 SV 65 x 75 248cc
KR6 OHV 74 x 81 349cc Competition
KR8 OHV 84 x 90 498cc Competition

1929 Models
Saddle tanks fitted to all models
M3, M4, M5 SV 74 x 81 349cc
M6, OHV
M7 OHC 74 x 81 349cc Competition
M8, MR8 OHV 84 x 90 498cc
M9 SV
M10 84 x 90 498cc OHC Competition
M12 SV 65 x 75 248cc
M1, M2 84 x 90 996cc V-twin
MR6 OHV 74 x 81 349cc Competition
MR8 OHV 84 x 90 498cc Competition
MR10 OHC 79 x101 498cc Competition

1930 Models
R2 84 x 90 996cc V-twin
R4, R5 SV 74 x 81 349cc
R6 OHV
R7 OHC 70 x 90 346cc Competition
R8 OHV 84 x 90 498cc
R9 SV
R10 OHC 79 x 101 495cc Competition
R12 OHV 65 x 75 248cc

1931 Models
Production moved from Wolverhampton to London
S2 84 x 90 998cc V-twin
S3 SV 65 x 75 498cc
S4 74 x 93 400cc
S5 74 x 81 348cc
S6 OHV
S7 OHC 70 x 90 346cc Competition
S8 OHV 84 x 90 498cc
S9 SV
S10 OHC 79 x 101 495cc Competition
S12 OHV 65 x 75 249cc
SB6 74 x 81 348cc
SB8 84 x 90 498cc

1932 Models
T2 SV V-Twin 85.5 x 85.5 982cc
T5 OHV 74x81 348cc
T6
TB6
T7 OHC 70 x 90 346cc Competition
T8 84x90 499cc
TB8
T9 SV
T10 79 x101 495cc Competition

1933 Models
33-2 SV 85.5x85.5 982cc  V-Twin
33-5 74x81 348cc
33-6 OHV
33-B6
33-8 84x90 499cc
33-B8
33-9 SV
33-12 OHV 65x75 249cc
33-7 OHC 70x90 346cc
33-10 79x101 495cc

1934 Models

34-2 85.5 x 85.5 982cc SV V-twin, Sturmey-Archer gearbox (English and Export models)
34-5 74x81 348cc
34-6 OHV
34-7 OHC 70x90 346cc
34-8 84x90 499cc
34-9 SV
34-10 79x101 495cc OHC
34-12 OHV 65x75 249cc
34-B6 3.49hp Big Port OHV
34-B8 84x90 498cc Big Port OHV
Model B Sidecar
Model C Sidecar


R10 OHC
Utility Three-Wheeler

1935 Models

35/2 85.5 x 85.5 982cc V-twin SV
35/4 82.5x93 497
35/14
35/5 74x81 348cc
35/6 OHV
35/8 84x90 499cc
35/18
35/9 SV
35/12 OHV 62.5x80 245
35/22
35/16 69x93 348cc
35/26
35/7 OHC 70x90 346cc
35/10 79x101 495cc

1936 Models

Around 14 models for 1936
36/2 85.5 x 85.5 982cc V-twin
Model 26 Twin Port OHV
also Models 2A, 5, 8, 9, 18
Model 12 250cc

1937 Models
37/2.37/2A 85.5 x 85.5 982cc V-twin
and many more

1938 Models
38/2, 38/2A 85.5 x 85.5 982cc V-twin
and many more

1939 Models
39/2. 39/2A 85.5 x 85.5 982cc V-twin
and many more

1940 Models
40/2 85.5 x 85.5 982cc SV V-twin (Same as Matchless X, same engine as Brough SS80)
40/2a 85.5 x 85.5 982cc Sidevalve V-twin, Colonial model


Sources: vintage-ajs.de


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