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| {{Motorcycle
| | [[Image:1929-BMW-R11.jpg|left|thumb|1929 BMW R11]] |
| |name = BMW R11
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| |photo= 1929-BMW-R11.jpg
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| |aka = R11 Series 1, R11 Series 2, R11 Series 3, R11 Series 5, R11 Series 4, R 11
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| |manufacturer = BMW | |
| |parent_company = | |
| |production = 1929 - 1934 | |
| |model_year =
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| |predecessor =
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| |successor = [[BMW R12]]
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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 = 5.5:1
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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 =
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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: two plates-dry <br>
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| |frame =
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| |suspension =Front: plate springe <br>
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| Rear: rigid
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| |brakes =Front: expanding [[brake]] (drum brake) <br>Rear: 37mm cardan brake
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| |front_tire = {{tire|3.50-26.00}}
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| |rear_tire = {{tire|3.50-26.00}}
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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 = 35.04 inches (890 mm)
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| |height = 37.01 inches (940 mm)
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| |seat_height =
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| |dry_weight =
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| |wet_weight = 162.0 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 = 4.50 liters/100 km (22.2 km/l or 52.27 mpg)
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| |turning_radius =
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| |related = [[BMW R16]]
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| |competition =
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| }}
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| 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]] | | [[Image:R11.jpg|thumb|350px|BMW R11]] |
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| 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. | | 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. |
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| ==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 sidevalves.
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| ==Drive==
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| The bike has a 3-speed transmission. Power was moderated via the two plates-dry.
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| ==Chassis==
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| 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.
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| ==1929 - 1934 BMW R 11==
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| [[File:bmw-r11-1929-1934-0.jpg|600px|1929 - 1934 BMW R 11]]
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| 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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| ==In Media==
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| * [https://motopixel.org/pixel/le-grand-bazar#bmw-r11 Le grand bazar]
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| * [https://motopixel.org/pixel/das-bernstein-amulett#bmw-r11 Das Bernstein-Amulett]
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| * [https://motopixel.org/pixel/33-45-in-farbe#bmw-r11 '33-'45 in Farbe]
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| * [https://motopixel.org/pixel/the-grand-budapest-hotel#bmw-r11 The Grand Budapest Hotel]
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| * [https://motopixel.org/pixel/rewers#bmw-r11 Rewers]
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| {{BMW}} | | {{BMW}} |
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| [[Category:BMW R series]] | | [[Category:BMW R series]] |
| [[Category:1920s motorcycles]] | | [[Category:1920s motorcycles]] |
| [[Category:Classic motorcycles]]
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| [[Category:1930s motorcycles]]
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