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BMW R51/3

BMW R51/3
A 1952 R51/3 – note the half-width brakes before 1954
ManufacturerBMW
Production1951-5
Engine494cc four-stroke flat-twin
Bore / stroke68 mm × 68 mm (2.68 in × 2.68 in)
Compression ratio6.3:1
Top speed140 km/h
Power24 hp
Ignition typeMagneto
TransmissionSingle-plate dry clutch, 4-Speed manual
SuspensionFront telescopic forks, rear plunger
Brakes200mm drums
Wheelbase1400mm
DimensionsL: 2130mm
W: 790mm
H: 985mm
Weight190 kg (wet)
Fuel capacity17 L
Oil capacity2 L
Fuel consumption4.5L/100KM
1951 R51/3 at the BMW Museum
1955 BMW R67/3
An R51/3 has eight round cylinder fins (left); the R67-R67/3 have nine larger and pointed cylinder fins (right)
Note the exposed driveshaft and plunger rear suspension

The BMW R51/3 was BMW's second post-World War II 500 cc motorcycle, following the briefly produced R51/2. It featured a flat-twin engine and exposed drive shaft.[1] In 1951, the R51/3 succeeded and modernized the 1950 R51/2, which was essentially a pre-war design that was produced after the war. The 600 cc R67, R67/2, and R67/3 series and the more sporting R68 model also followed the R51/2.

  1. ^ "R51/3 data sheet". Archived from the original on 2014-10-31. Retrieved 2012-07-05.

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BMW R 51/3 German ב.מ.וו R51/3 HE BMW R51/3 Dutch BMW R 51/3 Polish BMW R51/3 Portuguese

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