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Christian Bynum's Classic BMW Motorcycles: Specifications
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Below is a comparison of fundamental specifications for Airhead models produced during the '70s.
| Model |
Years |
Displ. |
Power Output |
| R50/5 |
70-73 |
496cc |
32 HP @ 6400 RPM |
| R60/5 |
70-73 |
599cc |
40 HP @ 6400 RPM |
| R75/5 |
70-73 |
745cc |
50 HP @ 6200 RPM |
| R60/6 |
74-76 |
599cc |
40 HP @ 6400 RPM |
| R75/6 |
74-76 |
745cc |
50 HP @ 6200 RPM |
| R90/6 |
74-76 |
900cc |
60 HP @ 6500 RPM |
| R90S |
74-76 |
900cc |
67 HP @ 7000 RPM |
| R60/7 |
77-80 |
599cc |
40 HP @ 6400 RPM |
| R75/7 |
77 |
745cc |
50 HP @ 6200 RPM |
| R80/7 |
78-84 |
797cc |
55 HP @ 7250 RPM |
| R100/7 |
77-79 |
980cc |
60 HP @ 6500 RPM |
| R100S |
77-78 |
980cc |
65 HP @ 6600 RPM |
| R100RS |
77-84 |
980cc |
70 HP @ 7250 RPM |
| R100RT |
78-84 |
980cc |
70 HP @ 7250 RPM |
| R100T |
79-84 |
980cc |
65 HP @ 7250 RPM |
| R100CS |
81-84 |
980cc |
70 HP @ 7000 RPM |
| R45 |
79-84 |
473cc |
27 HP @ 6500 RPM |
| R65 |
79-84 |
649cc |
45 HP @ 7250 RPM |
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