Difference between revisions of "BMW R11"

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[[Image:1929-BMW-R11.jpg|left|thumb|1929 BMW R11]]
 
[[Image:R11.jpg|thumb|350px|BMW R11]]
 
 
 
Shortly after venturing into car manufacture for the first time by acquiring the Dixi works at Eisenach, [[BMW|BMW]] introduced a major innovation to its motorcycle range in 1929. The transversely mounted 'flat-twin' engine was already a BMW trademark but for the first time it was installed in a pressed-steel frame, the first model to incorporate this landmark of motorcycle design being the 740cc R11. BMW's relatively vibration-free engine was already a byword for smoothness and refinement, and this, coupled to a three-speed shaft-drive transmission, made the R11 sidevalve one of the finest touring motorcycles of its day. Progressively improved, the R11 was built in five series up to 1934. This R11 displays a total of only 4 kilometres on the odometer, which, presumably, is the distance covered since restoration.
 
 
{{BMW}}
 
 
[[Category:BMW motorcycles|R11, BMW]]
 
[[Category:BMW R series]]
 
[[Category:1920s motorcycles]]
 
 
 
{{Infobox Motorcycle
 
{{Infobox Motorcycle
 
|name            = '''BMW R11'''
 
|name            = '''BMW R11'''
|image            =
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|image            = [[Image:1929-BMW-R11.jpg|frameless|1929 BMW R11]]
 
|aka              = R11 Series 1, R11 Series 2, R11 Series 3, R11 Series 5, R11 Series 4, R 11
 
|aka              = R11 Series 1, R11 Series 2, R11 Series 3, R11 Series 5, R11 Series 4, R 11
 
|manufacturer    = [[BMW]]
 
|manufacturer    = [[BMW]]
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|model_year      =
 
|model_year      =
 
|predecessor      =
 
|predecessor      =
|successor        =
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|successor        = [[BMW R12]]
 
|class            = [[Classic]]
 
|class            = [[Classic]]
 
|engine          = two cylinder boxer, four-stroke
 
|engine          = two cylinder boxer, four-stroke
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|fuel_consumption = 4.50 litres/100 km (22.2 km/l or 52.27 mpg)
 
|fuel_consumption = 4.50 litres/100 km (22.2 km/l or 52.27 mpg)
 
|turning_radius  =
 
|turning_radius  =
|related          =
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|related          = [[BMW R16]]
 
|competition      =
 
|competition      =
 
}}
 
}}
  
 
The '''[[BMW]] R11 Series 4''' was a two cylinder boxer, [[four-stroke]] Classic [[motorcycle]] produced by [[BMW]] between 1929 and 1934. It could reach a top speed of 68 mph (110 km/h). Claimed [[horsepower]] was 17.57 HP (13.1 KW) @ 3400 RPM.   
 
The '''[[BMW]] R11 Series 4''' was a two cylinder boxer, [[four-stroke]] Classic [[motorcycle]] produced by [[BMW]] between 1929 and 1934. 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==
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 +
[[Image:R11.jpg|thumb|350px|BMW R11]]
 +
 +
 +
Shortly after venturing into car manufacture for the first time by acquiring the Dixi works at Eisenach, [[BMW|BMW]] introduced a major innovation to its motorcycle range in 1929. The transversely mounted 'flat-twin' engine was already a BMW trademark but for the first time it was installed in a pressed-steel frame, the first model to incorporate this landmark of motorcycle design being the 740cc R11. BMW's relatively vibration-free engine was already a byword for smoothness and refinement, and this, coupled to a three-speed shaft-drive transmission, made the R11 sidevalve one of the finest touring motorcycles of its day. Progressively improved, the R11 was built in five series up to 1934. This R11 displays a total of only 4 kilometres on the odometer, which, presumably, is the distance covered since restoration.
 +
  
 
==Engine==
 
==Engine==
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* [https://motopixel.org/pixel/rewers#bmw-r11 Rewers]
 
* [https://motopixel.org/pixel/rewers#bmw-r11 Rewers]
  
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{{BMW}}
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[[Category:BMW motorcycles|R11, BMW]]
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[[Category:BMW R series]]
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[[Category:1920s motorcycles]]
 
[[Category:Classic motorcycles]]
 
[[Category:Classic motorcycles]]
[[Category:BMW motorcycles]]
 
[[Category:1920s motorcycles]]
 
 
[[Category:1930s motorcycles]]
 
[[Category:1930s motorcycles]]
[[Category:Motorcycles needing images]]
 

Revision as of 16:41, 12 June 2019

BMW R11
1929 BMW R11
Manufacturer BMW
Also called R11 Series 1, R11 Series 2, R11 Series 3, R11 Series 5, R11 Series 4, R 11
Production 1929 - 1934
Successor BMW R12
Class Classic
Engine two cylinder boxer, four-stroke
Bore / Stroke 78.0mm x 78.0mm
Compression ratio 5.5:1
Top speed 68 mph (110 km/h)
Horse Power 17.57 HP (13.1 KW) @ 3400RPM
Ignition type magneto
Battery 5.5:1
Transmission Gear box: 3-speed

Final Drive: shaft drive (cardan)

Clutch: two plates-dry
Suspension Front: plate springe
Rear: rigid
Brakes Front: expanding brake (drum brake)
Rear: 37mm cardan brake
Front Tire 3.50-26.00
Rear Tire 3.50-26.00
Wheelbase 54.33 inches (1380 mm)
Dimensions L 82.68 inches (2100 mm)
W 35.04 inches (890 mm)
H 37.01 inches (940 mm)
Weight  (dry), 162.0 kg (wet)
Fuel capacity 3.7 Gallon (14.00 Liters)
Fuel consumption 4.50 litres/100 km (22.2 km/l or 52.27 mpg)
Related BMW R16
Manuals Service Manual
Tech Specs · Brochures · Reviews · Ads · Videos

The BMW R11 Series 4 was a two cylinder boxer, four-stroke Classic motorcycle produced by BMW between 1929 and 1934. It could reach a top speed of 68 mph (110 km/h). Claimed horsepower was 17.57 HP (13.1 KW) @ 3400 RPM.


History

BMW R11


Shortly after venturing into car manufacture for the first time by acquiring the Dixi works at Eisenach, BMW introduced a major innovation to its motorcycle range in 1929. The transversely mounted 'flat-twin' engine was already a BMW trademark but for the first time it was installed in a pressed-steel frame, the first model to incorporate this landmark of motorcycle design being the 740cc R11. BMW's relatively vibration-free engine was already a byword for smoothness and refinement, and this, coupled to a three-speed shaft-drive transmission, made the R11 sidevalve one of the finest touring motorcycles of its day. Progressively improved, the R11 was built in five series up to 1934. This R11 displays a total of only 4 kilometres on the odometer, which, presumably, is the distance covered since restoration.


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 sidevalves.

Drive

The bike has a 3-speed transmission. Power was moderated via the two plates-dry.

Chassis

It came with a 3.50-26.00 front tire and a 3.50-26.00 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a 37mm cardan brake in the rear. The front suspension was a plate springe while the rear was equipped with a rigid. The R11 Series 4 was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The wheelbase was 54.33 inches (1380 mm) long.

1929 - 1934 BMW R 11

1929 - 1934 BMW R 11

The 1929 BMW R 11 sports an air-cooled, four-stroke, 745cc, twin cylinder powerplant paired to a three-speed manual transmission and can produce a claimed 20 horsepower at 4400 rpm. It comes with a plate spring front suspension, a rigid rear suspension with a sprung saddle, a dual exhaust system, a rear luggage rack, laced wheels, a round headlamp and a dry, single plate clutch.


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