autoevolution
 

BMW R23 (1938-1940) Specs, Performance & Photos

Segment: Clasic
Production years: 1938, 1939, 1940

BMW R23 1938-1940 2 Photos
BMW R23 (1938-1940)BMW R23 (1938-1940)

In 1938, a motorcycle license class was created for engines up to 250cc, which made the R20 model have a short life in the BMW range. Based on the R20, BMW designed a new model to fill that niche and released the 1938 BMW R23.

The new model came with a 247cc air-cooled four-stroke single-cylinder engine and a power output of 10 hp available at 5,400 rpm, two more than the previous R20 model but not reflected in the top speed which was 95 kph (58 mph).

The chassis, with the bolted tubular steel frame and the front telescopic fork, were adopted from the R20, but the most distinguishing feature of the R23 was the toolbox which was no longer attached but embedded into the fuel tank.

The 1938 BMW R23 came with standard features such as wire-spoked wheels, a sprung seat, a suspension package with a telescopic fork in the front, a hard-tail rear unit, full-coverage fenders, and a large headlamp, wide handlebars, and a rear luggage rack.

In 1940, just after two years of production, during which 8,000 units were sold, the production of the BMW single-cylinder engines came to an end. Eight years later, in 1948, BMW resumed post-war motorcycle production and released the R24, which was based on the R23 model.

BMW R23 1938-1940

BMW R23 247

engine specs
Type:air-cooled, four-stroke, single cylinder, OHV, 2 valves per cylinder
Displacement:247 cm3
Bore X Stroke:2.7x2.7 in OR 69 mm
Compression Ratio:6.75:1
Horsepower:10/5400 KW(hp)/RPM
Torque:0/- lb-ft/RPM OR 0 Nm/RPM
Fuel System:1xBing carburetor
transmission specs
Gearbox:3-speed, manual
Clutch:dry, single plate
Primary Drive:-
Final Drive:shaft
chassis specs
Frame:steel
Front Suspension:telescopic fork
Rear Suspension:hard-tail, sprung seat
Front Brake:160mm drum
Rear Brake:180mm drum
dimension specs
Overall Length:-
Overall Width:-
Seat Height:-
Wheelbase:-
Ground Clearance:-
Weight:298 lbs OR 135 kg
Fuel Capacity:2.5 gallons OR 9.5 L
tyres specs
Front:3.00 x 19
Rear:3.00 x 19
power system specs
Power pack:-
Nominal Capacity:-
Maximum Capacity:-
Charger type:-
Charging time (normal):-
Charging time (quick):-
Range:-
  report a mistake on this page