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R 3
   
. Data sheet
. Back to Models
Production
Begin of the Production   1936
End of the Production   1936
Numbers Produced   740
Price   995,- RM
Engine
Internal Designation   203/1
Motor Type   four-stroke single-cylinder vertical
Bore x Stroke   68 x 84 mm
Displacement   305 ccm
Max Power   11 hp at 4200 rpm
Compression Ratio   6.0 : 1
Valves   ohv
Carburetion System   1 x register carburettor Sum type C K 3/500
Engine Lubricating System   forced-feed lubrication
Oil Pump   gear pump
Power transmission
Clutch   single-plate, dry
Number of Gears   4
Shifting   manual
Gearbox Ratios   3.6 / 2.18 / 1.35 / 1
Rear Wheel Ratio   1 : 5.11 (with sidecar 1 : 5.63)
Bevel / Crownwheel   9 / 46 teeth (with sidecar 8 / 45 teeth)
Electrical system
Ignition System   battery ignition
Generator   Bosch 6 V/45/70 W
Spark Plugs   Bosch W 175 T1
 
Chassis
Designation   203/1
Frame   pressed steel twin-loop frame
Front Wheel Suspension   cantilever spring, 9 laminae with friction shock absorber
Rear Wheel Suspension   rigid
Wheel Rims   2.5 x 19
Tyres front   26 x 3.5 balloon
Tyres rear   26 x 3.5 balloon
Brakes front   drum brake
Brakes rear   drum brake
Dimensions / Weights
Length x Width x Height   1980 x 850 x 950 mm
Wheel Base   1320 mm
Fuel Tank Capacity   12 l
Unladen Weight, Full Tank   149 kg
PermittedWeight Limit   200 kg
Fuel Consumption   approx. 3 l/100 km
Oil Consumption   approx. 1 - 2 l/1000 km
Top Speed   100 kph