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Sicherungsring R25 - R25/3; R51/2 - R67/3.
1 Zylinder » R25, R26, R27 (50 - 66):
R 24 (0T10) (08/1948 - 08/1950)
R 25 (0T11) (08/1950 - 08/1951)
R 25/2 (0T12) (08-1951 - 03/1954)
R 25/3 (0T13) (08/1953 - 04/1956).
Boxer » R 50, R51, R60, R67, R68, R69 (50 - 69):
R51/2
R51/3
R67
R67/2/3.
1 Zylinder » R25, R26, R27 (50 - 66):
R 24 (0T10) (08/1948 - 08/1950)
R 25 (0T11) (08/1950 - 08/1951)
R 25/2 (0T12) (08-1951 - 03/1954)
R 25/3 (0T13) (08/1953 - 04/1956).
Boxer » R 50, R51, R60, R67, R68, R69 (50 - 69):
R51/2
R51/3
R67
R67/2/3.