Model: R 32
Production  
Engine  
Power transmission  
Electrical System  
Chassis  
Dimensions/Weights  
     
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Production
Begin of the Production   1923
End of the Production   1926
Numbers Produced   3.090
Price   2.200,- RM
Engine
Internal Designation   M 2 B 33
Motor Type   four-stroke two-cylinder flat-twin
Bore x Stroke   68 x 68 mm
Displacement   494 ccm
Max Power   8,5 hp at 3200 rpm
Compression Ratio   5.0 : 1
Valves   sv
Carburetion System   1 x carburettor, type BMW Spezial 22 mm
Engine Lubricating System   forced-feed lubrication
Oil Pump   gear pump
Power Transmission
Clutch   single-plate, dry
Number of Gears   3
Shifting   manual
Gearbox Ratios   2.27 / 1.50 / 1.08
Rear Wheel Ratio   1 : 4.41 (with sidecar 1 : 5.36)
Bevel / Crownwheel   17 / 75 teeth (with sidecar 14 / 75 teeth)
Electrical System
Ignition System   Bosch magneto ignition
Generator   magneto generator on request
Spark Plugs   Bosch W 145
Chassis
Designation   R 32
Frame   twin-loop tubular frame
Front Wheel Suspension   twin cantilever spring
Rear Wheel Suspension   rigid
Wheel Rims   26 x 2.5
Tyres front   26 x 3
Tyres rear   26 x 3
Brakes front   drum brake Ø 150 mm (not for 1st series)
Brakes rear   block brake
Dimensions/Weights
Length x Width x Height   2100 x 800 x 950 mm
Wheel Base   1380 mm
Fuel Tank Capacity   14 l
Unladen Weight, Full Tank   122 kg (with original sidecar 184 kg)
Fuel Consumption   approx. 3 l/100 km
Oil Consumption   approx. 2,5 l/1000 km
Top Speed   95 - 100 kph