BMW R 2 series 2a
Number sold ca. 1.850
Price 975,- RM
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| Internal Designation | M 67 S II |
| Engine type | four-stroke vertical single cylinder engine |
| Bore/stroke | 63 x 64 mm |
| Cubic capacity | 198 cm3 |
| Max power | 6 PS at 3500 rpm |
| Compression ratio | 6,7 : 1 |
| Valves per cylinder | ohv |
| Carburation system | 1 Sum Typ K 5 /250 |
| Engine lubrication | forced-feed lubrication |
| Oil pump | gear pump |
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| Power transmission | |
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| Clutch | single discs, dry |
| Number of gears | 3 |
| Shifting | manual |
| Gear ratios | 2,89 / 1,7 / 1 |
| Rear wheel ratio | 1 : 6,75 |
| Bevel/crown wheel | 8 / 54 teeth |
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| Electrical system | |
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| Alternator | Bosch 6 V 30 Watt |
| Ignition | battery ignition |
| Spark plugs | Bosch W 175 or Bosch 200 G 24 |
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| Suspension | |
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| Designation | F 67 S II |
| Type of frame | pressed steel duplex frame |
| Front suspension | cantilever spring, 9 laminae |
| Rear suspension | rigid |
| wheel rims | 25 x 3 |
| Tyres front | 25 x 3 |
| Tyres rear | 25 x 3 |
| Brakes front | drum brake Ø 180 mm |
| Brakes rear | drum brake Ø 180 mm |
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| Dimensions and weights | |
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| Length x width x height | 1950 x 850 x 950 mm |
| Wheel base | 1320 mm |
| Tank capacity | 11 l |
| Unladen weight, full tank | 130 kg |
| permitted loading | 200 kg |
| Fuel consumption | ca. 2,75 l / 100 km |
| Oil consumption | ca. 1 - 2 l / 1000 km |
| Top speed | 95 km/h |
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