Model Model Years Cylinders Displacement Frame and Engine Numbers
R23 1938-1941 1 247cc
106001 - 114203 / 106001 - 114021
R75WH 1941-1944 2 745cc
750001 - 768000 / 750001 - 768000
R24 1948-1950 1 247cc
200001 - 212007 / 200001 - 212007
R51/2 1950-1951 2 494cc
516001 - 521005 / 516001 - 521005
R25 1950-1951 1 247cc
220001 - 243400 / 220001 - 243400
R67 1951-1951 2 594cc
610001 - 611449 / 610001 - 611449
R67/2 1951-1954 2 594cc
612001 - 616226 / 612001 - 616226
R68 1951-1954 2 594cc
650001 - 651453 / 650001 - 651453
R51/3 1951-1954 2 494cc
522001 - 540950 / 522001 - 540950
R25/2 1951-1953 1 247cc
245001 - 283650 / 245001 - 283650
R25/3 1953-1956 1 247cc
284001 - 331705 / 284001 - 331705
R67/3 1955-1956 2 594cc
617001 - 617700 / 617001 - 617700