BMW R Series to 1969

Model Designation	Start	End	Start (US)	End (US)
BMW R2 Series 1	101	4260	N/A	N/A
BMW R2 Series 2a	4261	6276	N/A	N/A
BMW R2 Series 2/33	6277	8113	N/A	N/A
BMW R2 Series 3	8114	10201	N/A	N/A
BMW R2 Series 4	10202	12901	N/A	N/A
BMW R2 Series 5	12902	14816	N/A	N/A
BMW R3	106001	106740	N/A	N/A
BMW R4 Series 1	80001	81110	N/A	N/A
BMW R4 Series 2	81111	82838	N/A	N/A
BMW R4 Series 3	82839	86563	N/A	N/A
BMW R4 Series 4	86601	90250	N/A	N/A
BMW R4 Series 5	90251	95280	N/A	N/A
BMW R5 (1936)	8001	9503	N/A	N/A
BMW R5 (1937)	500001	502786	N/A	N/A
BMW R6	600001	601850	N/A	N/A
BMW R11 Series 1	60001 (inc R62)	65000 (inc R62)	N/A	N/A
BMW R11 Series 2	65001	66900	N/A	N/A
BMW R11 Series 3	67500	68920	N/A	N/A
BMW R11 Series 4	69001	70122	N/A	N/A
BMW R11 series 5	70123	73984	N/A	N/A
BMW R12 Single Carb	501(inc. below)	24199 (inc. below)	N/A	N/A
BMW R12 Twin Carb	501(inc. above)	24199 (inc. above)	N/A	N/A
BMW R12 Military	25001	37161	N/A	N/A
BMW R16 Series 1	75001 (inc R63)	76000 (inc R63)	N/A	N/A
BMW R16 Series 2	76001 (inc S3)	76700 (inc S3)	N/A	N/A
BMW R16 Series 3	76001 (inc S2)	76700 (inc S2)	N/A	N/A
BMW R16 Series 4	76701	76851	N/A	N/A
BMW R16 Series 5	76852	76953	N/A	N/A
BMW R17	77001	77436	N/A	N/A
BMW R20	100001	105004	N/A	N/A
BMW R23	106001	114021	N/A	N/A
BMW R24	200009	212007	N/A	N/A
BMW R25	220001	243400	N/A	N/A
BMW R25/2	245001	283650	N/A	N/A
BMW R25/3	284001	331705	N/A	N/A
BMW R26	340001	370236	N/A	N/A
BMW R27	372001	387566	N/A	N/A
BMW R32	31000	34100	N/A	N/A
BMW R35	300001	315387	N/A	N/A
BMW R37	35001	35175	N/A	N/A
BMW R39	36000	36900	N/A	N/A
BMW R42	40001	46999	N/A	N/A
BMW R47	34201	35999	N/A	N/A
BMW R50	550001	563515	N/A	N/A
BMW R50S	564005	565639	N/A	N/A
BMW R50US	N/A	N/A	630001 (as R50/2)	649037 (as R50/2)
BMW R50/2	630001	649037	N/A	N/A
BMW R51	503001	506172	N/A	N/A
BMW R51/2	516001	521005	N/A	N/A
BMW R51/3	522001	540950	N/A	N/A
BMW R52	47000	51383	N/A	N/A
BMW R57	70001	71012	N/A	N/A
BMW R60	618001	621530	N/A	N/A
BMW R60US	N/A	N/A	1810001 (as R60/2)	1819307 (as R60/2)
BMW R60/2 (1960 - 66)	622001	629999	N/A	N/A
BMW R60/2 (1966 - 69)	1810001	1819307	N/A	N/A
BMW R61	603001	606080	N/A	N/A
BMW R61 (1941)	607001	607340	N/A	N/A
BMW R62	60001 (inc R11S1)	65000 (inc R11S1)	N/A	N/A
BMW R63	75001 (inc R16S1)	76000 (inc R16S1)	N/A	N/A
BMW R66 (1938-40)	660001	661629	N/A	N/A
BMW R66 (1941)	662001	662039	N/A	N/A
BMW R67	610001	611449	N/A	N/A
BMW R67/2	612001	616226	N/A	N/A
BMW R67/3	617001	617700	N/A	N/A
BMW R68	650001	651453	N/A	N/A
BMW R69	652001	654955	N/A	N/A
BMW R69S	655004	666320	N/A	N/A
BMW R69US	N/A	N/A	655004 (as R69S)	666320 (as R69S)
BMW R71 (1938-39)	700005	702200	N/A	N/A
BMW R71 (1941)	703001	703511	N/A	N/A
BMW R75 Sidecar Unit	750001	768000 & above	N/A	N/A

BMW Motorcycle Pre 1969 Engine Numbers

Model Designation

Start

End

Start (US)

End (US)