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R 12 2 Carburettor

R 12 2 carburettor
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Production
Begin of the Production 1935
End of the Production 1942
Numbers Produced 36.000 (single- and double-carburettor versions)
Price 1.630,- RM
Engine
Internal Designation M 56 S 6 or 212
Motor Type four-stroke two-cylinder flat-twin
Bore x Stroke 78 x 78 mm
Displacement 745 ccm
Max Power 20 hp at 4000 rpm
Compression Ratio 5.2 : 1
Valves sv
Carburetion System 2 x Amal 6/406/407
Engine Lubricating System forced-feed lubrication
Oil Pump gear pump
Power transmission
Clutch double plates, dry
Number of Gears 4
Shifting manual
Gearbox Ratios 3.18 / 2.06 / 1.42 / 1.09
Rear Wheel Ratio 1 : 4.07 (sidecar 1 : 4.75)
Bevel / Crownwheel 14 / 57 teeth (sidecar 12 / 57)
Electrical system
Ignition System magneto or battery ignition
Generator Bosch D 245 RS 108
Spark Plugs Bosch M 175 T1 or Bosch W 175 T1
Chassis
Designation F 66
Frame twin-loop pressed steel frame
Front Wheel Suspension telescopic fork
Rear Wheel Suspension rigid
Wheel Rims 3 x 19
Tyres front 3.5 x 19
Tyres rear 3.5 x 19
Brakes front drum brake Ø 200 mm
Brakes rear drum brake Ø 200 mm
Dimensions / Weights
Length x Width x Height 2100 x 900 x 940 mm
Wheel Base 1380 mm
Fuel Tank Capacity 14 l
Unladen Weight, Full Tank approx. 185 kg
Load Rating 300 kg
Fuel Consumption approx. 4 - 4,5 l/100 km
Oil Consumption approx. 1 - 2 l/1000 km
Top Speed 120 kph
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