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R 50/2
   
. Data sheet
. Back to Models
Production
Begin of the Production   1960
End of the Production   1969
Numbers Produced   19036
Price   3.130,- DM
Engine
Internal Designation   252/2
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 carb. type Bing 1/24/45 - 46 or 1/24/131 - 132 or 1/24/149 - 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 (with sidecar: 5.33 / 3.02 / 2.04 / 1.54)
Rear Wheel Ratio   1 : 3.18 (with sidecar 1 : 4.25 or 1 : 4.33)
Bevel / Crownwheel   11 / 35 teeth (with sidecar 8 / 34 or 6:26)
Electrical system
Ignition System   magneto ignition
Generator   Bosch LJ/CGE 60/6/1700 R
Spark Plugs   Bosch W 240 T1 or Beru 240/14
 
Chassis
Designation   245/1
Frame   double loop steel tubular frame
Front Wheel Suspension   long arm swing with suspension units and oil-pressure shock absorbers
Rear Wheel Suspension   long arm swing with suspension units and oil-pressure shock absorbers
Wheel Rims   deep-bed 3 x 18 (with sidecar, rear 2.75C x 18)
Tyres front   3.5 x 18
Tyres rear   3.5 x 18 (with sidecar, 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   2125 x 660 x 980 mm
Wheel Base   1415 mm (with original sidecar 1450 mm)
Fuel Tank Capacity   17 l
Unladen Weight, Full Tank   195 kg (with original sidecar 320 kg )
Idle/Riding Noise   82/76 phon (from June 1967: 72 dB(A), 84 dB(A))
Load Rating   360 kg (with original sidecar 600 kg )
Fuel Consumption   approx. 5,1 l/100 km
Oil Consumption   approx. 0,5 - 1 l/1000 km
Top Speed   140 kph (with original sidecar 100 kph)