Model Model Years Cylinders Displacement Frame and Engine Numbers
R69 1955-1960 2 594cc
652001 - 654955 / 652001 - 654955
R50 1955-1960 2 497cc
550001 - 563515 / 550001 - 563515
R60 1956-1960 2 594cc
618001 - 621530 / 618001 - 621530
R26 1956-1960 1 247cc
340005 - 370242 / 340005 - 370242
R69S / R69US 1961-1969 2 594cc
655004 - 666320 / 655004 - 666320
R60/2 / R60US 1961-1969 2 594cc
622001 - 629999
1810001 - 1819307
———
622001 - 629999
1810001 - 1819307
R50/2 / R50US 1961-1969 2 497cc
630001 - 649037 / 630001 - 649037
R50S 1961-1962 2 497cc
564005 - 565639 / 564005 - 565639
R27 1961-1967 1 247cc
372001 - 387364 / 372001 - 387364
R75/5 1970-1973 2 745cc
2970001 - 3000000
4000001 - 4008371
4009001 - 4010000
———
2970001 - 3000000
4000001 - 4008371
4009001 - 4010000
R60/5 1970-1973 2 599cc
2930001 - 2952721 / 2930001 - 2952721
R50/5 1970-1973 2 498cc
2900001 - 2907865 / 2900001 - 2907865