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| {{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}} | | {{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}} |
| {{Infobox Motorcycle | | {{Motorcycle |
| |name = '''BMW R 4''' | | |name = BMW R 4 |
| |image = [[Image:R4.jpg|frameless|BMW R4]] | | |photo=R4.jpg |
| |aka = | | |aka = |
| |manufacturer = [[BMW]] | | |manufacturer = BMW |
| |parent_company = | | |parent_company = |
| |production = 1932 | | |production = 1932 - 1937 |
| |model_year = | | |model_year = |
| |predecessor = | | |predecessor = |
| |successor = | | |successor = |
| |class = [[Classic]] | | |class = Classic |
| |engine = air-cooled, four-stroke, single vertical cylinder | | |engine = air-cooled, four-stroke, single vertical cylinder |
| |bore_stroke = 83.8mm x 83.8mm | | |bore_stroke = 83.8mm x 83.8mm |
| | |fuel_system = carburetor. sum ck 3/500 fr |
| |compression = 5.7:1 | | |compression = 5.7:1 |
| |top_speed = | | |top_speed = 59 mph (95 km/h) |
| |power = 13.95 HP (10.4 KW) @ 4000RPM | | |power = 13.95 HP (10.4 KW) @ 4000RPM |
| |torque = | | |torque = |
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| |fuel_capacity = | | |fuel_capacity = |
| |oil_capacity = | | |oil_capacity = |
| |fuel_consumption = | | |fuel_consumption = 3.50 liters/100 km (28.6 km/l or 67.21 mpg) |
| |turning_radius = | | |turning_radius = |
| |related = | | |related = [[BMW R2]] |
| |competition = | | |competition = |
| }} | | }} |
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| [[Category:BMW R series]] | | [[Category:BMW R series]] |
| [[Category:1930s motorcycles]] | | [[Category:1930s motorcycles]] |
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| {{Infobox Motorcycle
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| |name = '''BMW R4'''
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| |image =
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| |aka = R4 Series 1, R4 Series 2, R4 Series 3, R4 Series 4, R4 Series 5
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| |manufacturer = [[BMW]]
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| |parent_company =
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| |production = 1932 - 1937
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| |model_year =
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| |predecessor =
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| |successor =
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| |class =
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| |engine = single cylinder, four-stroke
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| |bore_stroke = 84.0mm x 78.0mm
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| |compression =
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| |top_speed = 59 mph (95 km/h)
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| |power = 13.68 HP (10.2 KW) @ 4000RPM
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| |torque =
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| |fuel_system = carburettor. sum ck 3/500 fr
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| |ignition = battery
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| |spark_plug =
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| |battery = 5.7:1
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| |transmission = Final Drive: [[shaft drive]] (cardan) <br>
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| Clutch: dry-single plate-cable operated <br>
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| |frame =
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| |suspension =Front: cartridge <br>
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| Rear: rigid
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| |brakes =Front: expanding [[brake]] (drum brake) <br>Rear: expanding brake (drum 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 = 51.3 inches (1303 mm)
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| |length = 77.95 inches (1980 mm)
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| |width = 33.46 inches (850 mm)
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| |height = 37.76 inches (959 mm)
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| |seat_height =
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| |dry_weight =
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| |wet_weight = 137.0 kg
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| |fuel_capacity = 3.17 Gallon (12.00 Liters)
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| |oil_capacity =
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| |fuel_consumption = 3.50 litres/100 km (28.6 km/l or 67.21 mpg)
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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]] R4 Series 5''' was a single cylinder, [[four-stroke]] standard produced by [[BMW]] between 1932 and 1937. It could reach a top speed of 59 mph (95 km/h). Claimed [[horsepower]] was 13.68 HP (10.2 KW) @ 4000 RPM.
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| ==Engine==
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| The engine was a [[air cooled]] single cylinder, four-stroke. A 84.0mm [[bore]] x 78.0mm [[stroke]] result in a [[displacement]] of just 398.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
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| ==Drive==
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| Power was moderated via the dry-single plate-cable operated.
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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 expanding brake (drum brake) in the rear. The front suspension was a cartridge while the rear was equipped with a rigid. The R4 Series 5 was fitted with a 3.17 Gallon (12.00 Liters) fuel tank. The wheelbase was 51.3 inches (1303 mm) long.
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| [[Category:standard motorcycles]]
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| [[Category:BMW motorcycles]]
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| [[Category:1930s motorcycles]]
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| [[Category:Motorcycles needing images]]
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| [[Category:Multiple Infoboxes]]
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