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| | | #Redirect [[BMW R39]] |
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| {{Infobox Motorcycle
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| |name = '''BMW R 39'''
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| |image =
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| |aka =
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| |manufacturer = [[BMW]]
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| |parent_company =
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| |production = 1925
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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, single vertical cylinder, OHV
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| |bore_stroke = 67.8mm x 67.8mm
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| |compression = 6:1
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| |top_speed =
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| |power = 6.03 HP (4.5 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, 4 laminae <br>
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| Rear: hard-tail, sprung seat
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| |brakes =Front: 150mm drum <br>Rear: external shoe [[brake]] at the gearing (on cardan shaft)
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| |front_tire = {{tire|27 x 3.5}}
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| |rear_tire = {{tire|27 x 3.5}}
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| |rake_trail =
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| |wheelbase =
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| |length = 80.0 inches (2032 mm)
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| |width = 30.98 inches (787 mm)
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| |height =
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| |seat_height =
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| |dry_weight =
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| |wet_weight = 110.0 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 39''' was a air-cooled, four-stroke, single vertical cylinder, OHV Classic [[motorcycle]] produced by [[BMW]] in 1925. Claimed [[horsepower]] was 6.03 HP (4.5 KW) @ 4000 RPM.
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| ==Engine==
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| A 67.8mm [[bore]] x 67.8mm [[stroke]] result in a [[displacement]] of just 247.0 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 27 x 3.5 front [[tire]] and a 27 x 3.5 rear tire. Stopping was achieved via 150mm drum in the front and a external shoe brake at the gearing (on cardan shaft) in the rear. The front suspension was a plate spring, 4 laminae while the rear was equipped with a hard-tail, sprung seat.
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| ==1925 - 1927 BMW R 39==
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| [[File:bmw-r-39-1925-1927-0.jpg|600px|1925 - 1927 BMW R 39]]
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| The 1925 BMW R 39 sports an air-cooled, four-stroke, 247cc, single vertical cylinder engine paired to a three-speed manual transmission and can produce 6.5 horsepower at 4000 rpm. Furthermore, this machine came standard with laced wheels, whitewall tires, a plate string front fork, a rigid rear suspension with a single, sprung saddle, a rear luggage rack, a small headlight, a short exhaust and tipped the scale, fully-fueled at just 110 kg.
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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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| [[Category:Motorcycles needing images]]
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