for BMW:
R25/3, R26, R27
R51/2, R51/3,
R67, R67/2, R67/3
R68
R50, R50/2
R60, R60/2
R69, R69S
R50/5, R60/5, R75/5
R60/6, R75/6, R90/6, R90S
R60/7, R75/7, R80/7, R100/7
R45, R45T
R65, R65T, R65LS
R100R, R100S, R100RT, R100T, R100CS,
R100RS - until 1984
R80, R80R, R80ST, R80RT