Bowden cable adjusting screw (cooper)

1 Cylinder » R25, R26, R27 (50 - 66):
R 25/3 (0T13) (08/1953 - 04/1956)
R 26 (0T14) (08/1955 - 08/1960)
R 27 (0T15) (08/1960 - 08/1966).

Boxer » R 50, R51, R60, R67, R68, R69 (50 - 69):
R50
R50/2
R50S
R51/2
R51/3
R60
R60/2
R67
R67/2/3
R68
R69
R69S.

R Boxer » /5 (69 - 73):
R 50/5 (0240) (08/1969 - 09/1971)
R 50/5 (0240) (09/1971 - 07/1973)
R 60/5 (0250) (08/1969 - 09/1971)
R 60/5 (0250) (09/1971 - 07/1973)
R 75/5 (0260) (08/1969 - 09/1971)
R 75/5 (0260) (09/1971 - 07/1973).