Model: R 50 US
Production  
Engine  
Power transmission  
Electrical System  
Chassis  
Dimensions/Weights  
     
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Production
Begin of the Production   1967
End of the Production   1969
Numbers Produced   contained in figures for 50/2 (19.036)
Price   1.224,- US $
Engine
Internal Designation   252/3
Motor Type   four-stroke two-cylinder flat-twin
Bore x Stroke   68 x 68 mm
Displacement   494 ccm
Max Power   26 hp at 5800 rpm
Compression Ratio   7.5 : 1
Valves   ohv
Carburetion System   2 x carburettor Bing 1/24/149 - 1/24/150
Engine Lubricating System   forced-feed lubrication
Oil Pump   gear pump
Power Transmission
Clutch   single plate saucer spring, dry
Number of Gears   4
Shifting   foot shifting
Gearbox Ratios   4.17 / 2.73 / 1.94 / 1.54
Rear Wheel Ratio   1 : 3.375
Bevel / Crownwheel   8 / 27 teeth
Electrical System
Ignition System   magneto ignition
Generator   Bosch LJ/CGE 60/6/1700 R
Spark Plugs   Bosch W 240 T1
Chassis
Designation   245/3
Frame   double loop steel tubular frame
Front Wheel Suspension   telescopic fork
Rear Wheel Suspension   long arm swing with suspension units and oil-pressure shock absorbers
Wheel Rims   deep-bed 2.15B x 18
Tyres front   3.5 x 18
Tyres rear   4 x 18
Brakes front   drum brake Ø 200 mm duplex full hub
Brakes rear   drum brake Ø 200 mm simplex full hub
Dimensions/Weights
Length x Width x Height   2137 x 660 x 980 mm
Wheel Base   1427 mm
Fuel Tank Capacity   17 l
Unladen Weight, Full Tank   195 kg
Idle/Riding Noise   72 dB(A), 84 dB(A)
Load Rating   360 kg
Fuel Consumption   approx. 5,1 l/100 km
Oil Consumption   approx. 0,5 - 1 l/1000 km
Top Speed   140 kph