Difference between revisions of "BMW R90"

**BMW R90**
	BMW R90
Manufacturer	BMW
Also called	R 90-6, R 90 S, R90S
Production	1973 - 1975
Class	Naked
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
Transmission	Gear box: 5-speed ; Final Drive: shaft drive (cardan) ; Clutch: dry, single plate, diaphragm spring ;
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	K&N KN-161
Fuel Capacity	6.34 Gallon (24.00 Liters)
Manuals	Service Manual

Latest revision as of 20:07, 23 November 2019

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[edit | edit source]

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[edit | edit source]

The bike has a 5-speed transmission. Power was moderated via the dry, single plate, diaphragm spring.

Chassis[edit | edit source]

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[edit | edit source]

1974 BMW 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[edit | edit source]

1975 BMW R90/6 in Blue
1975 BMW R90/6 in Blue
1975 BMW R90/6 in Blue
1975 BMW R90/6 in Blue
1975 BMW R90/6 in Blue

1976 R90/6[edit | edit source]

1976 BMW R90/6 in Silver
1976 BMW R90/6 in Silver
1976 BMW R90/6 in Silver
1976 BMW R90/6 in Silver

1973 - 1976 BMW R 90 S[edit | edit source]

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[edit | edit source]

References[edit | edit source]

↑ 2019 K&L Supply Co Catalog. K&L Supply Co. 2019.

[kl_2019-1] 2019 K&L Supply Co Catalog. K&L Supply Co. 2019.

[1]

@@ Line 1: / Line 1: @@
-{{Infobox Motorcycle
+{{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}}
+{{Motorcycle
 |name             = BMW R90
-|image            = [[Image:R90-6.jpg|250px|BMW R90/6]]
+|photo            =  R90-6.jpg
-|aka              =
-|manufacturer     = [[BMW]]
-|parent_company   =
-|production       =
-|model_year       =
-|predecessor      =
-|successor        =
-|class            =
-|engine           =
-|bore_stroke      =
-|compression      =
-|top_speed        =
-|power            =
-|torque           =
-|fuel_system 	  =
-|ignition         =
-|spark_plug       =
-|battery          =
-|transmission     =
-|frame            =
-|suspension       =
-|brakes           =
-|front_tire       =
-|rear_tire        =
-|rake_trail       =
-|wheelbase        =
-|length           =
-|width            =
-|height           =
-|seat_height      =
-|dry_weight       =
-|wet_weight       =
-|fuel_capacity    =
-|oil_capacity     =
-|fuel_consumption =
-|turning_radius   =
-|related          =
-|competition      =
-|manuals      =
-}}
-==1974 R90/6==
-[[Image:1974-BMW-R906.jpg|left|thumb|1974 BMW R90/6]]
-<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 favour 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]]
-==1975 R90/6==
-<sgallery>
-[[Image:1975-BMW-R90-6-Blue-8092-0.jpg|left|thumb|1975 BMW R90/6 in Blue]]
-[[Image:1975-BMW-R90-6-Blue-8092-1.jpg|left|thumb|1975 BMW R90/6 in Blue]]
-[[Image:1975-BMW-R90-6-Blue-8092-2.jpg|left|thumb|1975 BMW R90/6 in Blue]]
-[[Image:1975-BMW-R90-6-Blue-8092-3.jpg|left|thumb|1975 BMW R90/6 in Blue]]
-[[Image:1975-BMW-R90-6-Blue-8092-4.jpg|left|thumb|1975 BMW R90/6 in Blue]]
-</sgallery>
-==1976 R90/6==
-<sgallery>
-[[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]]
-</sgallery>
-{{BMW}}
-[[Category:BMW motorcycles|R90]]
-[[Category:BMW R series]]
-{{Infobox Motorcycle
-|name             = '''BMW R90'''
-|image            =
 |aka              = R 90-6, R 90 S, R90S
-|manufacturer     = [[BMW]]
+|manufacturer     = BMW
 |parent_company   =
 |production       = 1973 - 1975
@@ Line 84: / Line 10: @@
 |predecessor      =
 |successor        =
-|class            = [[Naked]]
+|class            = Naked
 |engine           = two cylinder boxer, four-stroke
 |bore_stroke      = 90.0mm x 70.6mm
@@ Line 93: / Line 19: @@
 |ignition         =
 |spark_plug       =
-|battery          = 9.5:1
+|battery          =
 |transmission     = Gear box: 5-speed <br>
 Final Drive: [[shaft]] drive (cardan) <br>
@@ Line 114: / Line 40: @@
 |fuel_capacity    = 6.34 Gallon (24.00 Liters)
 |oil_capacity     =
+|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>
 |fuel_consumption =
 |turning_radius   =
@@ Line 130: / Line 57: @@
 ==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==
+[[Image:1974-BMW-R906.jpg|left|thumb|1974 BMW R90/6]]
+<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.
+*Spark Plug: NGK [[NGK BP6ES|BP6ES]]
+==1975 R90/6==
+<gallery mode='packed-hover'>
+File:1975-BMW-R90-6-Blue-8092-0.jpg|left|thumb|1975 BMW R90/6 in Blue
+File:1975-BMW-R90-6-Blue-8092-1.jpg|left|thumb|1975 BMW R90/6 in Blue
+File:1975-BMW-R90-6-Blue-8092-2.jpg|left|thumb|1975 BMW R90/6 in Blue
+File:1975-BMW-R90-6-Blue-8092-3.jpg|left|thumb|1975 BMW R90/6 in Blue
+File:1975-BMW-R90-6-Blue-8092-4.jpg|left|thumb|1975 BMW R90/6 in Blue
+</gallery>
+==1976 R90/6==
+<gallery mode='packed-hover'>
+File:1976-BMW-R90-6-Silver-7021-0.jpg|left|thumb|1976 BMW R90/6 in Silver
+File:1976-BMW-R90-6-Silver-7021-1.jpg|left|thumb|1976 BMW R90/6 in Silver
+File:1976-BMW-R90-6-Silver-7021-2.jpg|left|thumb|1976 BMW R90/6 in Silver
+File:1976-BMW-R90-6-Silver-7021-3.jpg|left|thumb|1976 BMW R90/6 in Silver
+</gallery>
 ==1973 - 1976 BMW R 90 S==
@@ Line 162: / Line 122: @@
 * [https://motopixel.org/pixel/la-vieja-musica#bmw-r90 La vieja música]
+==References==
+{{reflist}}
+{{BMW}}
+[[Category:BMW motorcycles|R90]]
+[[Category:BMW R series]]
 [[Category:Naked motorcycles]]
-[[Category:BMW motorcycles]]
 [[Category:1970s motorcycles]]
-[[Category:Motorcycles needing images]]