BMW R 2 series 1

BMW R 2 series 1 Date 1931

Number sold 4.161

Price 975,- RM

Engine

Internal Designation M 67
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 carburettor 19 mm
Engine lubrication forced-feed lubrication
Oil pump gear pump

Power transmission

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

Electrical system

Alternator Bosch 6 V 30 Watt
Ignition battery ignition
Spark plugs Bosch W 175 or Bosch 200 G 24

Suspension

Designation F 67
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 180 mm
Brakes rear drum brake 180 mm

Dimensions and weights

Length x width x height 1950 x 850 x 950 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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