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| {{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}}
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| {{Motorcycle
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| |name = BMW R90
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| |photo = R90-6.jpg
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| |aka = R 90-6, R 90 S, R90S
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| |manufacturer = BMW
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| |parent_company =
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| |production = 1973 - 1975
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| |model_year =
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| |predecessor =
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| |successor =
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| |class = Naked
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| |engine = two cylinder boxer, four-stroke
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| |bore_stroke = 90.0mm x 70.6mm
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| |compression = 9.5:1
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| |top_speed = 122 mph (196 km/h)
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| |power = 65.58 HP (48.9 KW) @ 7000RPM
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| |torque = 56.06 ft/lbs (76.0 Nm) @ 5500RPM
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| |ignition =
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| |spark_plug =
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| |battery =
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| |transmission = Gear box: 5-speed <br>
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| Final Drive: [[shaft]] drive (cardan) <br>
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| Clutch: dry, single plate, [[diaphragm]] spring <br>
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|
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| |frame =
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| |suspension =Front: telescopic [[hydraulic]] fork <br>
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| Rear: dual adjustable shocks
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| |brakes =Front: dual disc <br>Rear: expanding brake
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| |front_tire = {{tire|3.25-19}}
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| |rear_tire = {{tire|4.00-18}}
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| |rake_trail =
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| |wheelbase = 57.72 inches (1466 mm)
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| |length = 85.79 inches (2179 mm)
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| |width = 29.09 inches (739 mm)
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| |height =
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| |seat_height = 32.2 inches (818 mm)
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| |dry_weight =
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| |wet_weight = 232.0 kg
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| |fuel_capacity = 6.34 Gallon (24.00 Liters)
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| |oil_capacity =
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| |oil_filter = {{oilfilter|K&N KN-161}}<ref name="kl_2019">{{cite book|title=2019 K&L Supply Co Catalog|publisher=[https://www.klsupply.com/ K&L Supply Co]|date=2019}}</ref>
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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]] R90S''' was a two cylinder boxer, [[four-stroke]] Naked [[motorcycle]] produced by [[BMW]] between 1973 and 1975. It could reach a top speed of 122 mph (196 km/h). Max [[torque]] was 56.06 ft/lbs (76.0 Nm) @ 5500 RPM. Claimed [[horsepower]] was 65.58 HP (48.9 KW) @ 7000 RPM.
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| ==Engine==
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| The engine was a [[air cooled]] two cylinder boxer, four-stroke. A 90.0mm [[bore]] x 70.6mm [[stroke]] result in a [[displacement]] of just 898.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
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|
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| ==Drive==
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| The bike has a 5-speed transmission. Power was moderated via the dry, single plate, diaphragm spring.
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| ==Chassis==
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| It came with a 3.25-19 front [[tire]] and a 4.00-18 rear tire. Stopping was achieved via dual disc in the front and a expanding [[brake]] in the rear. The front suspension was a telescopic hydraulic fork while the rear was equipped with a dual adjustable shocks. The R90S was fitted with a 6.34 Gallon (24.00 Liters) fuel tank. The wheelbase was 57.72 inches (1466 mm) long.
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| ==1974 R90/6== | | ==1974 R90/6== |
| [[Image:1974-BMW-R906.jpg|left|thumb|1974 BMW R90/6]] | | [[Image:1974-BMW-R906.jpg|left|thumb|1974 BMW R90/6]] |
| <br style="clear: left"/> | | <br style="clear: left"/> |
| Replacements for the '/5' range, the [[BMW|BMW]] '/6' series arrived in October 1973. The newcomers were more sportily styled than the outgoing '/5's, boasting new side-panels and silencers, and totally restyled controls and instruments. Like their predecessors, the three '/6' flat twins shared an identical stroke; the 500cc model though, had been dropped in favor of the new 600cc R60/6, while at the top of the range was a new 900cc superbike: the [[BMW R90S|BMW R90S]]. Apart from the updated styling, the presence of a disc front brake readily distinguished the '/6's, which also benefited from the new five-speed gearbox.
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| *Spark Plug: NGK [[NGK BP6ES|BP6ES]] | | *Spark Plug: NGK [[NGK BP6ES|BP6ES]] |
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| ==1975 R90/6== | | ==1975 R90/6== |
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| <gallery mode='packed-hover'>
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| File:1975-BMW-R90-6-Blue-8092-0.jpg|left|thumb|1975 BMW R90/6 in Blue
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| File:1975-BMW-R90-6-Blue-8092-1.jpg|left|thumb|1975 BMW R90/6 in Blue
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| File:1975-BMW-R90-6-Blue-8092-2.jpg|left|thumb|1975 BMW R90/6 in Blue
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| File:1975-BMW-R90-6-Blue-8092-3.jpg|left|thumb|1975 BMW R90/6 in Blue
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| File:1975-BMW-R90-6-Blue-8092-4.jpg|left|thumb|1975 BMW R90/6 in Blue
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| </gallery>
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| | <sgallery> |
| | Image:1975-BMW-R90-6-Blue-8092-0.jpg|1975 BMW R90/6 in Blue |
| | Image:1975-BMW-R90-6-Blue-8092-2.jpg|1975 BMW R90/6 in Blue |
| | Image:1975-BMW-R90-6-Blue-8092-4.jpg|1975 BMW R90/6 in Blue |
| | </sgallery> |
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| ==1976 R90/6== | | ==1976 R90/6== |
| <gallery mode='packed-hover'>
| | [[Image:1976-BMW-R90-6-Silver-7021-0.jpg|left|thumb|1976 BMW R90/6 in Silver]][[Image:1976-BMW-R90-6-Silver-7021-1.jpg|left|thumb|1976 BMW R90/6 in Silver]][[Image:1976-BMW-R90-6-Silver-7021-2.jpg|left|thumb|1976 BMW R90/6 in Silver]][[Image:1976-BMW-R90-6-Silver-7021-3.jpg|left|thumb|1976 BMW R90/6 in Silver]] |
| | | <br style="clear: left"/> |
| File:1976-BMW-R90-6-Silver-7021-0.jpg|left|thumb|1976 BMW R90/6 in Silver
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| File:1976-BMW-R90-6-Silver-7021-1.jpg|left|thumb|1976 BMW R90/6 in Silver
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| File:1976-BMW-R90-6-Silver-7021-2.jpg|left|thumb|1976 BMW R90/6 in Silver
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| File:1976-BMW-R90-6-Silver-7021-3.jpg|left|thumb|1976 BMW R90/6 in Silver
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| </gallery>
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| ==1973 - 1976 BMW R 90 S==
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| [[File:bmw-r90-1973-1976-4.jpg|600px|1973 - 1976 BMW R 90 S]]
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| [[File:bmw-r90-1973-1976-3.jpg|600px|1973 - 1976 BMW R 90 S]]
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| [[File:bmw-r90-1973-1976-2.jpg|600px|1973 - 1976 BMW R 90 S]]
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| [[File:bmw-r90-1973-1976-1.jpg|600px|1973 - 1976 BMW R 90 S]]
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| [[File:bmw-r90-1973-1976-0.jpg|600px|1973 - 1976 BMW R 90 S]]
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| The 1973 BMW R 90 S is one of the most powerful machine designed by the German engineers up to date. It sports an air-cooled, 898cc, two cylinder boxer engine mated to a five-speed manual transmission that can produce a claimed 67 horsepower and 76 Nm of torque.
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| Also, it comes with features such as a dual seat, a pillion grab rail, a nose-fairing with a windscreen, a dual exhaust system, an analogue instrumentation panel, laced wheels, a telescopic hydraulic front fork, dual adjustable shocks in the rear, dual front disc brakes and a rear drum brake.
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| ==In Media==
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| * [https://motopixel.org/pixel/atomic-blonde#bmw-r90 Atomic Blonde]
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| * [https://motopixel.org/pixel/ace-up-my-sleeve#bmw-r90 Ace Up My Sleeve]
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| * [https://motopixel.org/pixel/the-dick-emery-show#bmw-r90 The Dick Emery Show]
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| * [https://motopixel.org/pixel/derrick#bmw-r90 Derrick]
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| * [https://motopixel.org/pixel/passe-ton-bac-dabord#bmw-r90 Passe ton bac d'abord]
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| * [https://motopixel.org/pixel/le-faux-cul#bmw-r90 Le faux-cul]
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| * [https://motopixel.org/pixel/ultimo-deseo#bmw-r90 Último deseo]
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| * [https://motopixel.org/pixel/turno-de-oficio#bmw-r90 Turno de oficio]
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| * [https://motopixel.org/pixel/rats-notte-di-terrore#bmw-r90 Rats - Notte di terrore]
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| * [https://motopixel.org/pixel/fin-de-semana-al-desnudo#bmw-r90 Fin de semana al desnudo]
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| * [https://motopixel.org/pixel/the-history-of-bmw-the-definitive-story#bmw-r90 The History of BMW: The Definitive Story]
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| * [https://motopixel.org/pixel/the-pink-panther-strikes-again#bmw-r90 The Pink Panther Strikes Again]
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| * [https://motopixel.org/pixel/entangled#bmw-r90 Entangled]
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| * [https://motopixel.org/pixel/homicide#bmw-r90 Homicide]
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| * [https://motopixel.org/pixel/liebe-am-fjord#bmw-r90 Liebe am Fjord]
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| * [https://motopixel.org/pixel/buona-come-il-pane#bmw-r90 Buona come il pane]
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| * [https://motopixel.org/pixel/la-vieja-musica#bmw-r90 La vieja música]
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| ==References==
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| {{reflist}}
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| {{BMW}}
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| [[Category:BMW motorcycles|R90]] | | [[Category:BMW motorcycles|R90]] |
| [[Category:BMW R series]] | | [[Category:BMW R series]] |
| [[Category:Naked motorcycles]]
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| [[Category:1970s motorcycles]]
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