A-Z of Motorcycling
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I

IBIS: 1925-28 Italy
IDEAL: 1910-16 Australia
IDEAL: 1924-25 Germany
IDEAL-JAWA: 1961- India
IDRA: 1923-26 Italy
IDROFLEX: 1949-54 Italy
IFA: 1945-60 East Germany
ILLAWARRA: 1902-05 Australia
ILO: 1923-25 Germany
IMEX: 1957 Italy
IMHOLZ: 1924-27 Switzerland
IMME:1948-51 Germany
IMN:1950-58 Italy
IMPERIA: 1923-25 Germany
IMPERIA:1924-35 Germany
IMPERIAL:1901-c1910 UK
IMPERIAL: 1903-c1910 America
IMPERIAL: 1915 Australia
IMPERIAL STAR: 19? Tasmania, Australia
INDIAN: 1901-53 USA
INDIAN: 1951-63 UK
INDIAN MOTORCYCLE COMPANY: 1990s- USA
INDIAN PRINCE (or Silver Prince): 1920-24 UK
INDUS: 1924-27 Germany
INTRAMOTOR: 1971- Italy
INVICTA: 1902-06 UK
INVICTA: 1913-23 UK
INVICTA: 1951-54 Italy
INVINCIBLE: 1915 Australia
INVINCIBLE-JAP: 1923-27 Australia
IRENE: 1907-15? Australia
IRESA: 1956-59 Spain
IRIS: 1902-06 UK
IRIS: 1911-14 Australia
IRIS: 1952-53 Italy
IRUNA: 1953-late 1950's Spain
ISETTA (BMW): 1955-57 Germany
ISH: 1928- Russia (see IZHMASH)
ISLO: 1960- Mexico
ISO: 1949-64 Italy
ITA: 1957-1959 FBM engine Dutch
ITALA: 1933-39 Italy
ITALEMMEZETA: 1958-66 Italy
ITALJET: 1966- Italy
ITALTELAI: 1970s-? Italy
ITAR: 1921-29 Czech
ITOM: 1948-late 60's Italy
IVEL: 1902-c1905 UK
IVER-JOHNSON: 1907-15 America
IVO LOLA RIBAR: 1956- Yugoslavia
IVY: 1908-32 UK
IWL: 1950s Germany
IXION: 1901-03 UK
IXION: c1900's-23 UK
IXION: 1912-16 Australia
IZH: 1928- Russia (see IZHMASH)
IZHMASH: 1928- Russia