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| | | #Redirect [[BMW R57]] |
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| {{Motorcycle
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| |name = BMW R 57
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| |photo=bmw-r-57-1928-1930-2.jpg
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| |aka =
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| |manufacturer = BMW
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| |parent_company =
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| |production = 1928
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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 = air-cooled, four-stroke, twin cylinder, SV
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| |bore_stroke = 68.6mm x 68.6mm
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| |compression = 5.8:1
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| |top_speed =
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| |power = 17.97 HP (13.4 KW) @ 4000RPM
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| |torque =
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| |ignition =
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| |spark_plug =
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| |battery =
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| |transmission = Gear box: 3-speed, manual <br>
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| Final Drive: [[shaft]] <br>
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| Clutch: dry, single plate <br>
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| |frame =
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| |suspension =Front: plate spring fork <br>
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| Rear: hard-tail, sprung seat
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| |brakes =Front: 200mm drum <br>Rear: block brake
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| |front_tire = {{tire|26 x 3.5}}
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| |rear_tire = {{tire|26 x 3.5}}
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| |rake_trail =
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| |wheelbase =
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| |length =
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| |width =
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| |height =
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| |seat_height =
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| |dry_weight =
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| |wet_weight = 150.0 kg
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| |fuel_capacity =
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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]] R 57''' was a air-cooled, four-stroke, twin cylinder, SV Classic [[motorcycle]] produced by [[BMW]] in 1928. Claimed [[horsepower]] was 17.97 HP (13.4 KW) @ 4000 RPM.
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| ==Engine==
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| A 68.6mm [[bore]] x 68.6mm [[stroke]] result in a [[displacement]] of just 494.0 cubic centimeters.
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| ==Drive==
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| The bike has a 3-speed, manual transmission. Power was moderated via the dry, single plate.
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| ==Chassis==
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| It came with a 26 x 3.5 front [[tire]] and a 26 x 3.5 rear tire. Stopping was achieved via 200mm drum in the front and a block [[brake]] in the rear. The front suspension was a plate spring fork while the rear was equipped with a hard-tail, sprung seat.
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| ==1928 - 1930 BMW R 57==
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| [[File:bmw-r-57-1928-1930-2.jpg|600px|1928 - 1930 BMW R 57]]
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| [[File:bmw-r-57-1928-1930-1.jpg|600px|1928 - 1930 BMW R 57]]
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| [[File:bmw-r-57-1928-1930-0.jpg|600px|1928 - 1930 BMW R 57]]
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| The 1928 BMW R 57 has, at its heart, an air-cooled, four-stroke, 494cc, twin cylinder powerplant paired to a four-speed manual transmission and can reach a maximum power output of 18 horsepower at 4000 rpm. This classic machine from the House of Munich had standard fittings such as a plate spring front fork, a rigid rear suspension with a sprung single seat, a rear luggage rack, a small headlamp, laced wheels, a center stand, a front drum brake coupled to a block brake in the rear and a 12-liter (3.3-gallon) fuel tank.
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| [[Category:Classic motorcycles]]
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| [[Category:BMW motorcycles]]
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| [[Category:1920s motorcycles]]
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