Difference between revisions of "BMW R90"
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[[Image:1974-BMW-R906.jpg|left|thumb|1974 BMW R90/6]] | [[Image:1974-BMW-R906.jpg|left|thumb|1974 BMW R90/6]] | ||
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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 | 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. | ||
*Spark Plug: NGK [[NGK BP6ES|BP6ES]] | *Spark Plug: NGK [[NGK BP6ES|BP6ES]] |
Revision as of 22:25, 3 July 2019
'BMW R90' | |
Manufacturer | [[BMW]] |
---|---|
Also called | R 90-6, R 90 S, R90S |
Production | 1973 - 1975 |
Class | [[:Category:Naked motorcycles|Naked]] [[Category:Naked motorcycles]] |
Engine | two cylinder boxer, four-stroke |
Bore / Stroke | 90.0mm x 70.6mm |
Compression ratio | 9.5:1 |
Top Speed | 122 mph (196 km/h) |
Horsepower | 65.58 HP (48.9 KW) @ 7000RPM |
Torque | 56.06 ft/lbs (76.0 Nm) @ 5500RPM |
Battery | 9.5:1 |
Transmission | Gear box: 5-speed Final Drive: shaft drive (cardan) |
Suspension | Front: telescopic hydraulic fork Rear: dual adjustable shocks |
Brakes | Front: dual disc Rear: expanding brake |
Front Tire | 3.25-19 |
Rear Tire | 4.00-18 |
Wheelbase | 57.72 inches (1466 mm) |
Length | 85.79 inches (2179 mm) |
Width | 29.09 inches (739 mm) |
Seat Height | 32.2 inches (818 mm) |
Weight | 232.0 kg (wet) |
Oil Filter | Fram CH6062 w/ oil cooler Fram CH6060 w/o oil cooler |
Fuel Capacity | 6.34 Gallon (24.00 Liters) |
Manuals | Service Manual |
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.
Engine
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).
Drive
The bike has a 5-speed transmission. Power was moderated via the dry, single plate, diaphragm spring.
Chassis
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.
1974 R90/6
Replacements for the '/5' range, the 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. 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.
- Spark Plug: NGK BP6ES
1975 R90/6
1976 R90/6
1973 - 1976 BMW R 90 S
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.
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.
In Media
- Atomic Blonde
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- Derrick
- Passe ton bac d'abord
- Le faux-cul
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- Turno de oficio
- Rats - Notte di terrore
- Fin de semana al desnudo
- The History of BMW: The Definitive Story
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- Entangled
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- Liebe am Fjord
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