Difference between revisions of "BMW R23"

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{{BMW}}
 
{{BMW}}
 
[[Category:BMW motorcycles]]
 
[[Category:BMW motorcycles]]
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{{Infobox Motorcycle
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|name            = '''BMW R23'''
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|image            =
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|aka              = R 23
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|manufacturer    = [[BMW]]
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|parent_company  =
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|production      = 1938 - 1940
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|model_year      =
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|predecessor      =
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|successor        =
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|class            = [[Classic]]
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|engine          = single cylinder, four-stroke
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|bore_stroke      = 68.0mm x 68.0mm
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|compression      = 6.75:1
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|top_speed        = 59 mph (95 km/h)
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|power            = 9.79 HP (7.3 KW) @ 5400RPM
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|torque          =
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|ignition        = battery
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|spark_plug      =
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|battery          = 6.1:1
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|transmission    = Gear box: 3-speed <br>
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Final Drive: [[shaft]] drive (cardan) <br>
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Clutch: single plate dry <br>
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|frame            =
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|suspension      =Front: telescopic fork <br>
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Rear: rigid
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|brakes          =Front: expanding [[brake]] (drum brake) <br>Rear: expanding brake (drum brake)
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|front_tire      = {{tire|2.99-19}}
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|rear_tire    = {{tire|2.99-19}}
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|rake_trail      =
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|wheelbase        = 52.36 inches (1330 mm)
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|length          = 78.74 inches (2000 mm)
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|width            = 31.5 inches (800 mm)
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|height          = 35.43 inches (900 mm)
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|seat_height      =
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|dry_weight      =
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|wet_weight      = 135.0 kg
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|fuel_capacity    = 2.54 Gallon (9.60 Liters)
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|oil_capacity    =
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|fuel_consumption =
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|turning_radius  =
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|related          =
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|competition      =
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}}
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The '''[[BMW]] R23''' was a single cylinder, [[four-stroke]] Classic [[motorcycle]] produced by [[BMW]] between 1938 and 1940. It could reach a top speed of 59 mph (95 km/h). Claimed [[horsepower]] was 9.79 HP (7.3 KW) @ 5400 RPM. 
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==Engine==
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The engine was a [[air cooled]] single cylinder, four-stroke. A 68.0mm [[bore]] x 68.0mm [[stroke]] result in a [[displacement]] of just 247.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv). 
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==Drive==
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The bike has a 3-speed transmission. Power was moderated via the single plate dry. 
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==Chassis==
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It came with a 2.99-19 front [[tire]] and a 2.99-19 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a  telescopic fork while the rear was equipped with a rigid. The R23 was fitted with a 2.54 Gallon (9.60 Liters) fuel tank. The wheelbase was 52.36 inches (1330 mm) long. 
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==1938 - 1940 BMW R 23==
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[[File:bmw-r23-1938-1940-1.jpg|600px|1938 - 1940 BMW R 23]]
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[[File:bmw-r23-1938-1940-0.jpg|600px|1938 - 1940 BMW R 23]]
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The 1938 BMW R 23 has, at its heart, an air-cooled, four-stroke, 247cc, single cylinder lump mated to a three-speed manual transmission that can produce  a claimed 12 horsepower at 5600 rpm. It comes with laced wheels, a sprung seat, a suspension package with a telescopic fork in the front and a hard-tail rear unit, full-coverage fenders, a large headlamp, wide handlebars, and a rear luggage rack.
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==In Media==
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* [https://motopixel.org/pixel/the-great-escape#bmw-r23 The Great Escape]
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* [https://motopixel.org/pixel/polizeiruf-110-der-riss#bmw-r23 Polizeiruf 110 - Der Riss]
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[[Category:Classic motorcycles]]
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[[Category:BMW motorcycles]]
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[[Category:1930s motorcycles]]
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[[Category:1940s motorcycles]]
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[[Category:Motorcycles needing images]]

Revision as of 18:24, 21 May 2019

BMW R23

Developed from the single-cylinder BMW 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. Powered by an overhead-valve engine producing 10bhp, the BMW 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 60mph (97km/h). This R23 was completed on 22nd December 1939 and delivered to Nibbrig & Greeve in the Netherlands on 23rd July 1940, two months after the Dutch had surrendered to the invading German forces!

BMW R23
Manufacturer BMW
Also called R 23
Production 1938 - 1940
Class Classic
Engine single cylinder, four-stroke
Bore / Stroke 68.0mm x 68.0mm
Compression ratio 6.75:1
Top speed 59 mph (95 km/h)
Horse Power 9.79 HP (7.3 KW) @ 5400RPM
Ignition type battery
Battery 6.1:1
Transmission Gear box: 3-speed

Final Drive: shaft drive (cardan)

Clutch: single plate dry
Suspension Front: telescopic fork
Rear: rigid
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 2.99-19
Rear Tire 2.99-19
Wheelbase 52.36 inches (1330 mm)
Dimensions L 78.74 inches (2000 mm)
W 31.5 inches (800 mm)
H 35.43 inches (900 mm)
Weight  (dry), 135.0 kg (wet)
Fuel capacity 2.54 Gallon (9.60 Liters)
Manuals Service Manual
Tech Specs · Brochures · Reviews · Ads · Videos

The BMW R23 was a single cylinder, four-stroke Classic motorcycle produced by BMW between 1938 and 1940. It could reach a top speed of 59 mph (95 km/h). Claimed horsepower was 9.79 HP (7.3 KW) @ 5400 RPM.

Engine

The engine was a air cooled single cylinder, four-stroke. A 68.0mm bore x 68.0mm stroke result in a displacement of just 247.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

Drive

The bike has a 3-speed transmission. Power was moderated via the single plate dry.

Chassis

It came with a 2.99-19 front tire and a 2.99-19 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic fork while the rear was equipped with a rigid. The R23 was fitted with a 2.54 Gallon (9.60 Liters) fuel tank. The wheelbase was 52.36 inches (1330 mm) long.

1938 - 1940 BMW R 23

1938 - 1940 BMW R 23 1938 - 1940 BMW R 23

The 1938 BMW R 23 has, at its heart, an air-cooled, four-stroke, 247cc, single cylinder lump mated to a three-speed manual transmission that can produce a claimed 12 horsepower at 5600 rpm. It comes with laced wheels, a sprung seat, a suspension package with a telescopic fork in the front and a hard-tail rear unit, full-coverage fenders, a large headlamp, wide handlebars, and a rear luggage rack.


In Media