Difference between revisions of "BMW R 57"

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#Redirect [[BMW R57]]
 
{{Motorcycle
|name            = BMW R 57
|photo=bmw-r-57-1928-1930-2.jpg
|aka              =
|manufacturer    = BMW
|parent_company  =
|production      = 1928
|model_year      =
|predecessor      =
|successor        =
|class            = Classic
|engine          = air-cooled, four-stroke, twin cylinder, SV
|bore_stroke      = 68.6mm x 68.6mm
|compression      = 5.8:1
|top_speed        =
|power            = 17.97 HP (13.4 KW) @ 4000RPM
|torque          =
|ignition        =
|spark_plug      =
|battery          =
|transmission    = Gear box: 3-speed, manual <br>
Final Drive: [[shaft]] <br>
Clutch: dry, single plate <br>
 
|frame            =
|suspension      =Front: plate spring fork <br>
Rear: hard-tail, sprung seat
|brakes          =Front: 200mm drum <br>Rear: block brake
|front_tire      = {{tire|26 x 3.5}}
|rear_tire    = {{tire|26 x 3.5}}
|rake_trail      =
|wheelbase        =
|length          =
|width            =
|height          =
|seat_height      =
|dry_weight      =
|wet_weight      = 150.0 kg
|fuel_capacity    =
|oil_capacity    =
|fuel_consumption =
|turning_radius  =
|related          =
|competition      =
}}
 
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. 
 
==Engine==
A 68.6mm [[bore]] x 68.6mm [[stroke]] result in a [[displacement]] of just 494.0 cubic centimeters. 
 
==Drive==
The bike has a 3-speed, manual transmission. Power was moderated via the dry, single plate. 
 
==Chassis==
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. 
 
==1928 - 1930 BMW R 57==
[[File:bmw-r-57-1928-1930-2.jpg|600px|1928 - 1930 BMW R 57]]
[[File:bmw-r-57-1928-1930-1.jpg|600px|1928 - 1930 BMW R 57]]
[[File:bmw-r-57-1928-1930-0.jpg|600px|1928 - 1930 BMW R 57]]
 
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.
 
[[Category:Classic motorcycles]]
[[Category:BMW motorcycles]]
[[Category:1920s motorcycles]]

Latest revision as of 18:08, 3 December 2019

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