Home WORLD Vintage 1939 BMW R23 250cc Single-Cylinder Motorcycle Start Up

Vintage 1939 BMW R23 250cc Single-Cylinder Motorcycle Start Up

Developed from the single-cylinder R20 of 1937/38, itself a development of BMW’s best-selling R2, the R23 was produced between 1938 and 1940, 8,021 examples being sold.

source/image(PrtSc): classic-motorcycle.com

Powered by an overhead-valve engine producing 10 ps, the R23 came with a four-speed gearbox and featured shaft drive like the larger models.

Weight with a full tank of fuel was 297lbs and the top speed around 100 km/h. This R23 was completed on 22nd December 1939 and delivered to Nibbrig & Greeve in the Netherlands on 23rd July 1940.

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The machine we present here is an older restoration. It is a fine running bike.

Specifications

  • Manufacturer: BMW
  • Model: R23
  • Year: 1939
  • Displacement: 247 cc
  • Cylinder: 1
  • Engine type: 4-stroke / ohv
  • Bore / Stroke: 68 x 68 mm
  • Power: 10hp @ 5400 rpm
  • Compression Ratio: 1 : 6.0
  • Weight: 135 kg
  • Top Speed: 100 km/h
  • Production years: 1938 – 1940
  • Units: 8.021
  • Frame number: 113987
  • Engine number: 113987