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R 11 Series 3
   
. Data sheet
. Back to Models
Production
Begin of the Production   1931
End of the Production   1932
Numbers Produced   7.500 (series 1-5)
Price   1.630,- RM
Engine
Internal Designation   M 56 S 3
Motor Type   four-stroke two-cylinder flat-twin
Bore x Stroke   78 x 78 mm
Displacement   745 ccm
Max Power   18 hp at 3400 rpm
Compression Ratio   5.5 : 1
Valves   sv
Carburetion System   1 x carburettor type Sum CK 3/500 F I
Engine Lubricating System   forced-feed lubrication
Oil Pump   gear pump
Power transmission
Clutch   two plates, dry
Number of Gears   3
Shifting   manual
Gearbox Ratios   2.83 / 1.55 / 1.08
Rear Wheel Ratio   1 : 4.07 (with sidecar 1 : 4.75)
Bevel / Crownwheel   14 / 57 teeth (sidecar 12 / 57)
Electrical system
Ignition System   magneto ignition
Generator   Bosch magneto generator D 2 B L or magneto ignition FF2
Spark Plugs   Bosch W 175 T1
 
Chassis
Designation   F 66 S 3
Frame   twin-loop pressed steel frame
Front Wheel Suspension   plate spring, 9 laminae
Rear Wheel Suspension   rigid
Wheel Rims   26 x 3.5 safety rims
Tyres front   26 x 3.5 low pressure or 26 x 3.25 high pressure
Tyres rear   26 x 3.5 low pressure or 26 x 3.25 high pressure
Brakes front   drum brake Ø 200 mm
Brakes rear   cardan brake, width 55 mm
Dimensions / Weights
Length x Width x Height   2100 x 890 x 940 mm
Wheel Base   1380 mm
Fuel Tank Capacity   14 l
Unladen Weight, Full Tank   162 kg
Load Rating   210 kg
Fuel Consumption   approx. 4 - 4,5/100 km
Oil Consumption   approx. 1 - 2 l/1000 km
Top Speed   95 - 100 kph