Difference between revisions of "BMW R12"

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[[Image:1938-BMW-R12-Army.jpg|left|thumb|1938 BMW R12 Army]]
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{{Infobox Motorcycle
[[Image:1939 BMW R12.jpg|right|thumb|1939 BMW R12]]
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|name            = '''BMW R12'''
The '''R12''' was an air-cooled [[boxer twin]] [[four-stroke]] [[motorcycle]] produced by [[BMW]] from 1935-1942. 
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|image            =[[Image:1939 BMW R12.jpg|frameless|1939 BMW R12]]
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|aka              = R12 Single Carb, R12 Twin carb, R 12
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|manufacturer    = [[BMW]]
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|parent_company  =
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|production      = 1935 - 1942
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|model_year      =
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|predecessor      = [[BMW R11]]
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|successor        =
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|class            = [[Classic]]
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|engine          = two cylinder boxer, four-stroke
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|bore_stroke      = 78.0mm x 78.0mm
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|compression      = 5.2:1
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|top_speed        = 68 mph (110 km/h)
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|power            = 17.57 HP (13.1 KW) @ 3400RPM
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|torque          =
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|ignition        = magneto
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|spark_plug      =
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|battery          = 5.2:1
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|transmission    = Gear box: 4-speed <br>
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Final Drive: [[shaft]] <br>
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Clutch: dry multiplate-cable operated <br>
  
The R12 along with its sister model, the [[BMW R17|R17]] were milestone models in the evolution of [[motorcycling]], being the first production machines to feature a hydraulically dampened [[telescopic front fork]].  This resulted in the R12 being the best selling pre-WWII [[:Category:BMW motorcycles|BMW motorcycle]], with 36,000 units sold from 1935 to 1942, with a great many going into [[:Category:Army motorcycles|military]] service.   
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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|3.5-19}}
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|rear_tire    = {{tire|3.5-19}}
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|rake_trail      =
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|wheelbase        = 54.33 inches (1380 mm)
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|length          = 82.68 inches (2100 mm)
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|width            = 35.43 inches (900 mm)
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|height          = 37.01 inches (940 mm)
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|seat_height      =
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|dry_weight      = 407.86 pounds (185.0 Kg)
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|wet_weight      = 185.0 kg
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|fuel_capacity    = 3.7 Gallon (14.00 Liters)
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|oil_capacity    =
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|fuel_consumption = 3.40 liters/100 km (29.4 km/l or 69.18 mpg)
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|turning_radius  =
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|related          = [[BMW R17]]
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|competition      =
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}}
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The '''[[BMW]] R12 Single Carb''' was a two cylinder boxer, [[four-stroke]] Classic [[motorcycle]] produced by [[BMW]] between 1935 and 1942. It could reach a top speed of 68 mph (110 km/h). Claimed [[horsepower]] was 17.57 HP (13.1 KW) @ 3400 RPM. 
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==History==
 +
[[Image:1938-BMW-R12-Army.jpg|right|thumb|1938 BMW R12 Army]]
 +
 
 +
The R12 along with its sister model, the [[BMW R17|R17]] were milestone models in the evolution of [[motorcycling]], being the first production machines to feature a hydraulically dampened [[telescopic front fork]].  This resulted in the R12 being the best selling pre-WWII [[:Category:BMW motorcycles|BMW motorcycle]], with 36,000 units sold from 1935 to 1942, with a great many going into [[:Category:Military motorcycles|military]] service.   
 +
 
 +
 
 +
==Engine==
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The engine was a [[air cooled]] two cylinder boxer, four-stroke. A 78.0mm [[bore]] x 78.0mm [[stroke]] result in a [[displacement]] of just 745.0 cubic centimeters. Fuel was supplied via a standing valves. 
 +
 
 +
==Drive==
 +
The bike has a 4-speed transmission. Power was moderated via the dry multiplate-cable operated. 
 +
 
 +
==Chassis==
 +
It came with a 3.5-19 front [[tire]] and a 3.5-19 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 R12 Single Carb was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The bike weighed just 407.86 pounds (185.0 Kg). The wheelbase was 54.33 inches (1380 mm) long. 
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==1935 - 1942 BMW R 12==
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[[File:bmw-r12-1935-1942-4.jpg|600px|1935 - 1942 BMW R 12]]
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[[File:bmw-r12-1935-1942-3.jpg|600px|1935 - 1942 BMW R 12]]
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[[File:bmw-r12-1935-1942-2.jpg|600px|1935 - 1942 BMW R 12]]
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[[File:bmw-r12-1935-1942-1.jpg|600px|1935 - 1942 BMW R 12]]
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[[File:bmw-r12-1935-1942-0.jpg|600px|1935 - 1942 BMW R 12]]
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The 1935 BMW R 12 has, at its heart, an air-cooled, four-stroke, 745cc, twin cylinder powerplant mated to a four-speed manual transmission and can produce a claimed 20 horsepower at 4000 rpm. It also comes with laced wheels, a large, round headlamp, a rear luggage rack, a telescopic front fork, a hard-tail rear suspension with a sprung single saddle, a drum braking system in the front and in the rear, a dual exhaust and a dry, double plate clutch.
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==In Media==
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* [https://motopixel.org/pixel/so-war-berlin#bmw-r12 So war Berlin]
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* [https://motopixel.org/pixel/gdansk-39#bmw-r12 Gdansk '39]
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* [https://motopixel.org/pixel/edith-et-marcel#bmw-r12 Édith et Marcel]
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* [https://motopixel.org/pixel/die-geschichte-der-deutschen-wehrmacht#bmw-r12 Die Geschichte der deutschen Wehrmacht]
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* [https://motopixel.org/pixel/great-tank-battles-of-world-war-ii#bmw-r12 Great Tank Battles of World War II]
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* [https://motopixel.org/pixel/la-femme-tranquille#bmw-r12 La femme tranquille]
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* [https://motopixel.org/pixel/valkyrie#bmw-r12 Valkyrie]
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* [https://motopixel.org/pixel/arretez-les-tambours#bmw-r12 Arrêtez les tambours]
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* [https://motopixel.org/pixel/strafbataillon-999#bmw-r12 Strafbataillon 999]
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* [https://motopixel.org/pixel/combat#bmw-r12 Combat!]
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* [https://motopixel.org/pixel/monsieur-leon#bmw-r12 Monsieur Léon]
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* [https://motopixel.org/pixel/9-april#bmw-r12 9. april]
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* [https://motopixel.org/pixel/akcija-stadion#bmw-r12 Akcija stadion]
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* [https://motopixel.org/pixel/la-traversee-de-la-loire#bmw-r12 La traversée de la Loire]
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* [https://motopixel.org/pixel/pierre-brossolette-ou-les-passagers-de-la-lune#bmw-r12 Pierre Brossolette ou les passagers de la lune]
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* [https://motopixel.org/pixel/un-enfant-dans-la-foule#bmw-r12 Un enfant dans la foule]
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* [https://motopixel.org/pixel/la-guerre-des-ondes-radio-londres-1943-1944#bmw-r12 La guerre des ondes (Radio Londres 1943-1944)]
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* [https://motopixel.org/pixel/en-brazos-de-la-mujer-madura#bmw-r12 En brazos de la mujer madura]
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* [https://motopixel.org/pixel/elsa-la-rose#bmw-r12 Elsa la rose]
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* [https://motopixel.org/pixel/la-route-de-corinthe#bmw-r12 La route de Corinthe]
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* [https://motopixel.org/pixel/hundert-jahre-deutschland#bmw-r12 Hundert Jahre Deutschland]
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* [https://motopixel.org/pixel/aviateurs-75-ans-daventures#bmw-r12 Aviateurs, 75 ans d'aventures]
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* [https://motopixel.org/pixel/hans-kloss-stawka-wieksza-niz-smierc#bmw-r12 Hans Kloss. Stawka wieksza niz smierc]
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* [https://motopixel.org/pixel/die-deutsche-wehrmacht#bmw-r12 Die Deutsche Wehrmacht]
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* [https://motopixel.org/pixel/hitlers-bodyguard#bmw-r12 Hitler's Bodyguard]
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* [https://motopixel.org/pixel/wrzesien-tak-bylo#bmw-r12 Wrzesien - tak bylo...]
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* [https://motopixel.org/pixel/tag-der-freiheit-unsere-wehrmacht#bmw-r12 Tag der Freiheit - Unsere Wehrmacht]
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* [https://motopixel.org/pixel/world-war-ii-in-color#bmw-r12 World War II in Colour]
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* [https://motopixel.org/pixel/la-feldmarescialla#bmw-r12 La feldmarescialla]
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* [https://motopixel.org/pixel/vom-blitzkrieg-zur-barbarei-der-vernichtungsfeldzu#bmw-r12 Vom Blitzkrieg zur Barbarei - Der Vernichtungsfeldzug gegen die Sowjetunion]
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* [https://motopixel.org/pixel/le-retour-des-bidasses-en-folie#bmw-r12 Le retour des bidasses en folie]
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* [https://motopixel.org/pixel/toto-e-peppino-divisi-a-berlino#bmw-r12 Totò e Peppino divisi a Berlino]
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* [https://motopixel.org/pixel/la-ciociara#bmw-r12 La ciociara]
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* [https://motopixel.org/pixel/oorlogswinter#bmw-r12 Oorlogswinter]
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* [https://motopixel.org/pixel/die-wehrmacht-eine-bilanz#bmw-r12 Die Wehrmacht - Eine Bilanz]
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* [https://motopixel.org/pixel/quel-maledetto-treno-blindato#bmw-r12 Quel maledetto treno blindato]
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* [https://motopixel.org/pixel/wilde-engel#bmw-r12 Wilde Engel]
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* [https://motopixel.org/pixel/apocalypse-la-2eme-guerre-mondiale#bmw-r12 Apocalypse - La 2ème guerre mondiale]
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* [https://motopixel.org/pixel/suite-francaise#bmw-r12 Suite Française]
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* [https://motopixel.org/pixel/bluszcz#bmw-r12 Bluszcz]
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* [https://motopixel.org/pixel/le-deportate-della-sezione-speciale-ss#bmw-r12 Le deportate della sezione speciale SS]
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* [https://motopixel.org/pixel/fontana-pre-zuzanu#bmw-r12 Fontána pre Zuzanu]
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* [https://motopixel.org/pixel/triple-cross#bmw-r12 Triple Cross]
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* [https://motopixel.org/pixel/betrayed#bmw-r12 Betrayed]
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* [https://motopixel.org/pixel/les-chinois-a-paris#bmw-r12 Les chinois à Paris]
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* [https://motopixel.org/pixel/le-train#bmw-r12 Le train]
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* [https://motopixel.org/pixel/la-traversee-de-paris#bmw-r12 La traversée de Paris]
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* [https://motopixel.org/pixel/les-impures#bmw-r12 Les impures]
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* [https://motopixel.org/pixel/hitler-in-color#bmw-r12 Hitler in Colour]
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* [https://motopixel.org/pixel/i-leopardi-di-churchill#bmw-r12 I Leopardi di Churchill]
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* [https://motopixel.org/pixel/brdrene-dal-og-professor-drvels-hemmelighet#bmw-r12 Brødrene Dal og professor Drøvels hemmelighet]
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* [https://motopixel.org/pixel/pistruiatul#bmw-r12 Pistruiatul]
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* [https://motopixel.org/pixel/la-vache-et-le-prisonnier#bmw-r12 La vache et le prisonnier]
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* [https://motopixel.org/pixel/sins#bmw-r12 Sins]
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* [https://motopixel.org/pixel/the-baron#bmw-r12 The Baron]
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* [https://motopixel.org/pixel/strange-angel#bmw-r12 Strange Angel]
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* [https://motopixel.org/pixel/la-verte-moisson#bmw-r12 La verte moisson]
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* [https://motopixel.org/pixel/die-wache#bmw-r12 Die Wache]
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* [https://motopixel.org/pixel/from-hell-to-victory#bmw-r12 From Hell to Victory]
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* [https://motopixel.org/pixel/spojrzenie-na-wrzesien#bmw-r12 Spojrzenie na wrzesien]
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{{BMW}}
  
 
[[Category:BMW motorcycles|R12, BMW]]
 
[[Category:BMW motorcycles|R12, BMW]]
 
[[Category:Military motorcycles|R12]]
 
[[Category:Military motorcycles|R12]]
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[[Category:BMW R series]]
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[[Category:1930s motorcycles]]
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[[Category:1940s motorcycles]]
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[[Category:Classic motorcycles]]

Revision as of 02:33, 20 June 2019

BMW R12
1939 BMW R12
Manufacturer BMW
Also called R12 Single Carb, R12 Twin carb, R 12
Production 1935 - 1942
Predecessor BMW R11
Class Classic
Engine two cylinder boxer, four-stroke
Bore / Stroke 78.0mm x 78.0mm
Compression ratio 5.2:1
Top speed 68 mph (110 km/h)
Horse Power 17.57 HP (13.1 KW) @ 3400RPM
Ignition type magneto
Battery 5.2:1
Transmission Gear box: 4-speed

Final Drive: shaft

Clutch: dry multiplate-cable operated
Suspension Front: telescopic fork
Rear: rigid-
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 3.5-19
Rear Tire 3.5-19
Wheelbase 54.33 inches (1380 mm)
Dimensions L 82.68 inches (2100 mm)
W 35.43 inches (900 mm)
H 37.01 inches (940 mm)
Weight 407.86 pounds (185.0 Kg) (dry), 185.0 kg (wet)
Fuel capacity 3.7 Gallon (14.00 Liters)
Fuel consumption 3.40 liters/100 km (29.4 km/l or 69.18 mpg)
Related BMW R17
Manuals Service Manual
Tech Specs · Brochures · Reviews · Ads · Videos

The BMW R12 Single Carb was a two cylinder boxer, four-stroke Classic motorcycle produced by BMW between 1935 and 1942. It could reach a top speed of 68 mph (110 km/h). Claimed horsepower was 17.57 HP (13.1 KW) @ 3400 RPM.

History

1938 BMW R12 Army

The R12 along with its sister model, the R17 were milestone models in the evolution of motorcycling, being the first production machines to feature a hydraulically dampened telescopic front fork. This resulted in the R12 being the best selling pre-WWII BMW motorcycle, with 36,000 units sold from 1935 to 1942, with a great many going into military service.


Engine

The engine was a air cooled two cylinder boxer, four-stroke. A 78.0mm bore x 78.0mm stroke result in a displacement of just 745.0 cubic centimeters. Fuel was supplied via a standing valves.

Drive

The bike has a 4-speed transmission. Power was moderated via the dry multiplate-cable operated.

Chassis

It came with a 3.5-19 front tire and a 3.5-19 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 R12 Single Carb was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The bike weighed just 407.86 pounds (185.0 Kg). The wheelbase was 54.33 inches (1380 mm) long.

1935 - 1942 BMW R 12

1935 - 1942 BMW R 12 1935 - 1942 BMW R 12 1935 - 1942 BMW R 12 1935 - 1942 BMW R 12 1935 - 1942 BMW R 12

The 1935 BMW R 12 has, at its heart, an air-cooled, four-stroke, 745cc, twin cylinder powerplant mated to a four-speed manual transmission and can produce a claimed 20 horsepower at 4000 rpm. It also comes with laced wheels, a large, round headlamp, a rear luggage rack, a telescopic front fork, a hard-tail rear suspension with a sprung single saddle, a drum braking system in the front and in the rear, a dual exhaust and a dry, double plate clutch.


In Media