Editing BMW R11

[[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
|name             = '''BMW R11'''
|image            =
|aka              = R11 Series 1, R11 Series 2, R11 Series 3, R11 Series 5, R11 Series 4, R 11
|manufacturer     = [[BMW]]
|parent_company   =
|production       = 1929 - 1934
|model_year       =
|predecessor      =
|successor        =
|class            = [[Classic]]
|engine           = two cylinder boxer, four-stroke
|bore_stroke      = 78.0mm x 78.0mm
|compression      = 5.5:1
|top_speed        = 68 mph (110 km/h)
|power            = 17.57 HP (13.1 KW) @ 3400RPM
|torque           =
|ignition         = magneto
|spark_plug       =
|battery          = 5.5:1
|transmission     = Gear box: 3-speed <br>
Final Drive: [[shaft drive]] (cardan) <br>
Clutch: two plates-dry <br>

|frame            =
|suspension       =Front: plate springe <br>
Rear: rigid
|brakes           =Front: expanding [[brake]] (drum brake) <br>Rear: 37mm cardan brake
|front_tire       = {{tire|3.50-26.00}} 
|rear_tire   	  = {{tire|3.50-26.00}} 
|rake_trail       =
|wheelbase        = 54.33 inches (1380 mm)
|length           = 82.68 inches (2100 mm)
|width            = 35.04 inches (890 mm)
|height           = 37.01 inches (940 mm)
|seat_height      =
|dry_weight       =
|wet_weight       = 162.0 kg
|fuel_capacity    = 3.7 Gallon (14.00 Liters)
|oil_capacity     =
|fuel_consumption = 4.50 litres/100 km (22.2 km/l or 52.27 mpg)
|turning_radius   =
|related          =
|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.  

==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==
[[File:bmw-r11-1929-1934-0.jpg|600px|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.


==In Media==
* [https://motopixel.org/pixel/le-grand-bazar#bmw-r11 Le grand bazar]
* [https://motopixel.org/pixel/das-bernstein-amulett#bmw-r11 Das Bernstein-Amulett]
* [https://motopixel.org/pixel/33-45-in-farbe#bmw-r11 '33-'45 in Farbe]
* [https://motopixel.org/pixel/the-grand-budapest-hotel#bmw-r11 The Grand Budapest Hotel]
* [https://motopixel.org/pixel/rewers#bmw-r11 Rewers]

[[Category:Classic motorcycles]]
[[Category:BMW motorcycles]]
[[Category:1920s motorcycles]]
[[Category:1930s motorcycles]]
[[Category:Motorcycles needing images]]