R51/3


Production Model Years
   1951 - 1954

Frame and Engine Numbers

   Frame numbers
    522001 - 540950
    ———
   Engine numbers
    522001 - 540950

Model Specifications
Drivetrain
Displacement494cc
Cylinders2
Bore x Stroke (mm)68 x 68
HP @ RPM24 @ 5800
Compression Ratio6.3:1
ValvesOHV, 2 per cylinder
ClutchDry, single plate, cable operated
Transmission4 speed, foot shifted
Final DriveDriveshaft
Running Gear
FrameTubular steel double cradle
Front SuspensionHydraulically damped telescopic fork
Rear SuspensionPlunger
Front Brakes200mm drum, single (1951-1952) or dual (1953-1954) leading shoe
Rear Brakes200mm drum, single leading shoe
Electrical
IgnitionMagneto
Spark PlugsBosch W240
GeneratorNoris 6V/L45/60 6V 45W
Capacities & Measurements
Weight190kg
Fuel17l
Wheelbase1400mm
Top Speed140kph
Number Produced18949



The information provided here was obtained from a variety of public sources and may not reflect official BMW archival data.
Please contact the BMW Archives for official data regarding models.