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New Imperial Models

TABLE 1. 1912 to 1919

MODEL

CAPACITY/TYPE

B*S

Years When Catalogued

2 h.p.

293cc-SV

70*76

1912

1913

3 h.p.

499cc-SV

85*88

1912

1913

3 h.p.

TT Model-SV

1913

3 h.p.

TT Model-OHV

1913

4 h.p.

610cc-SV

90*96

1912

4 h.p.

Nominal 600cc – SV

1913

6 h.p.

V-Twin

1913

1

2 h.p. 293cc

70*76

1914

1915

1916

1917

1918

1919

1A

2 h.p. 293cc

70*76

1915

2

3 h.p. 499cc

1914

2

2 h.p. 293cc

1915

1916

1917

1918

1919

3

3 h.p. 499cc

1914

3

2 h.p. 293cc

1915

1916

1917

1918

4

3 h.p. 493cc

1914

4

2 h.p. 293cc

1915

1916

1917

1918

5

3 h.p. 493cc

1914

6

3 h.p. 496cc

1914

7

3 h.p. 496cc

1914

8

4 h.p.

1914

9

4 h.p.

1914

10

6 or 8 h.p.

1914

11

6 or 8 h.p.

1914

8 h.p.

964cc - SV

85*85

1917

1918

1919

Notes:

1. Catalogues and press articles of this period often do not state capacity or bore and stroke.

2. The 8 h.p. model was not made available to the public until 1919.

TABLE 2: 1920 to 1929

MODEL

CAP./TYPE

B*S

Years When Catalogued

2 h.p.

250cc SV

64.5*76

1921

2 h.p.

293cc SV

70*76

1921

2 h.p.

293cc SV

70*76

1921

8 h.p.

964cc SV

85*85

1920

1921

1922

1

293cc SV

70*76

1920

1922

1924

1925

1926

1927

1A

293cc SV

70*76

1924

1925

1926

1927

2

346cc SV

74*80

1920

1922

1926

1927

1928

1929

2A

346cc SV

74*80

1926

1927

2B

346cc SV

74*80

1927

2C

346cc SV

74*80

1927

2DL

346cc SV

74*80

1928

1929

3

293cc SV

70*76

1922

1923

3A

346cc SV

70*90

1924

1925

1926

1927

3B

346cc SV

70*90

1924

1925

1926

1927

4

346cc SV

70*90

1922

1923

4A

346cc SV

70*90

1923

1924

1925

1926

1927

4B

346cc SV

70*90

1925

1926

1927

5

249cc SV

64.5*76

1922

1923

1924

5

249cc OHV

62.5*80

1925

1926

1927

1928

5A

249cc OHV

62.5*80

1925

1927

1928

6

346cc SV

70*90

1922

1923

6

346cc OHV

70*90

1924

1925

1926

1927

1928

6A

346cc OHV

70*90

1924

1925

1926

1927

1928

6B

346cc OHV

70*90

1926

1927

6C

346cc OHV

70*90

1926

1927

7

964cc SV-V2

85*85

1922

1923

1924

1925

7

499cc OHV

84*90

1928

1929

7A

964cc SV-V2

85*85

1924

7A

499cc OHV

84*90

1928

7B

499cc OHV

84*90

1929

8

674cc SV-V2

70*90

1922

1923

1926

1927

1928

1929

8A

674cc SV-V2

70*90

1926

1927

8B

674cc SV-V2

70*90

1926

1927

8C

674cc SV-V2

70*90

1926

1927

9

964cc SV-V2

85*85

1922

1923

B9

249cc OHV

62.5*80

1929

10

964cc SV-V2

85*85

1923

1925

10

346cc OHV

74*90

1929

11

980cc SV-V2

85.5*85

1923

1924

1925

1926

11A

980cc SV-V2

85.5*85

1923

1924

1925

1926

Note: Engine capacities quoted above are only approximate. Capacities quoted in the catalogue cannot be relied on because they were often not consistent with the stated bore and stroke. Sometimes the same bore and stroke was even said to give different capacities.

TABLE 3: 1930 to 1939

MOD

CAP/TYPE

B*S

Years When Catalogued

2

346cc SV

74*80

1930

1931

1932

1933

2DL

346cc SV

74*80

1930

1931

7

499cc SV

84*90

1930

1931

7B

499cc OHV

84*90

1930

1931

8

246cc OHV

62.5*80

1932

9

246cc OHV

62.5*80

1930

1931

10

346cc OHV

70*90

1930

1931

B10

346cc OHV

74*80

1931

F10

346cc OHV

74*80

1931

1932

1933

1934

1935

11A

499cc OHV

86*86

1931

11

499cc OHV

86*86

1931

1934

1935

F11

499cc OHV

86*86

1932

1933

15

346cc OHV

74*80

1932

16

346cc OHV U/C

74*80

1932

1933

1934

16A

346cc OHV U/C

74*80

1933

1934

17

499cc OHV U/C

86*86

1932

1933

1934

17A

499cc OHV U/C

86*86

1933

1934

18

499cc SV

84*90

1932

1933

1934

19

346cc OHV

70*90

1932

20

246cc OHV

62.5*80

1932

21

246cc OHV

70*90

1932

22

246cc OHV

62.5*80

1932

23

146cc OHV U/C

55*62.5

1932

1933

1934

1935

1936

1937

1938

1939

23DL

146cc OHV U/C

55*62.5

1934

1935

25

146cc OHV U/C

55*62.5

1935

27

146cc OHV U/C

55*62.5

1935

30

247cc OHV U/C

67*70

1933

1934

1935

1936

30DL

247cc OHV U/C

67*70

1934

1935

35

247cc OHV U/C

67*70

1935

36

247cc OHV U/C

67*70

1936

1937

1938

1939

36DL

247cc OHV U/C

67*70

1937

1938

1939

36L

247cc OHV U/C

67*70

1938

1939

37

247cc OHV U/C

67*70

1935

40

346cc OHV U/C

74*80

1934

1935

1936

45

346cc OHV U/C

74*80

1935

46

346cc OHV U/C

74*80

1936

1937

1938

1939

46DL

346cc OHV U/C

74*80

1937

1938

1939

47

346cc OHV U/C

74*80

1935

49

346cc OHV U/C

74*80

1934

1935

50

246cc OHV

62.5*80

1934

1935

1936

1939

60

346cc OHV

70*90

1934

1935

1936

1939

70

496cc OHV U/C

82*94

1935

1936

76

496cc OHV U/C

82*94

1936

1937

1938

1939

76DL

496cc OHV U/C

82*94

1937

1938

1939

80

496cc SV U/C

82*94

1935

80

550cc SV U/C

84*100

1936

90

246cc OHV

62.5*80

1936

90

246cc OHV U/C

62.5*80

1937

1938

100

346cc OHV

70*90

1936

100

346cc OHV U/C

70*90

1937

1938

110

496cc OHV U/C

82*94

1937

1938

1939

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