1975 BMW R90/6
The 1975 1975 BMW R90/6 is a 898cc twin-cylinder touring motorcycle that became one of BMW's most memorable motorcycles of the 1970s.
Specifications
Engine
- Type
- OHV flat-twin
- Displacement
- 898 cc
- Cylinders
- 2
- Power
- 60 hp @ 6500 rpm
- Torque
- 62.0 Nm
- Compression
- —
- Bore × Stroke
- 90.0 × 70.6 mm
- Cooling
- Air-cooled
- Fuel System
- 2x Bing carburetors
Chassis & Transmission
- Frame
- Steel double cradle
- Front Suspension
- Telescopic fork
- Rear Suspension
- Twin shock
- Front Brake
- Single disc
- Rear Brake
- Drum
- Front Tyre
- —
- Rear Tyre
- —
- Transmission
- 5-speed
- Final Drive
- Shaft
Performance
- Top Speed
- 190 km/h (118 mph)
- ¼ Mile
- —
Dimensions & Weight
- Dry Weight
- 200 kg (441 lbs)
- Wet Weight
- 215 kg (474 lbs)
- Seat Height
- 810 mm
- Wheelbase
- 1465 mm
- Ground Clearance
- —
- Fuel Capacity
- 17.0 L
History & Story
The 1975 1975 BMW R90/6 was introduced by BMW as a touring motorcycle aimed at riders seeking touring motorcycle performance and style. Manufactured in Germany, it represented BMW's vision for the twin-cylinder touring motorcycle market during the 1970s.
Powering the 1975 BMW R90/6 is a 898cc OHV flat-twin producing 60hp. This twin-cylinder engine uses air-cooled cooling and draws fuel through 2x Bing carburetors. A 5-speed gearbox sends power via shaft final drive to the rear wheel.
Built around a steel double cradle frame, the 1975 BMW R90/6 suspends its 200 kg (441 lbs) on telescopic fork forks and twin shock rear units. Braking relies on single disc at the front and drum at the rear, with a 1465 mm wheelbase providing stability.
Performance-wise, the 1975 BMW R90/6 achieves a claimed top speed of 190 km/h (118 mph). With a generous fuel capacity of 17.0 liters, it offers reasonable range for touring motorcycle duties. The seat height of 810 mm makes it comfortable for most riders.
Powering the 1975 BMW R90/6 is a 898cc OHV flat-twin producing 60hp. This twin-cylinder engine uses air-cooled cooling and draws fuel through 2x Bing carburetors. A 5-speed gearbox sends power via shaft final drive to the rear wheel.
Built around a steel double cradle frame, the 1975 BMW R90/6 suspends its 200 kg (441 lbs) on telescopic fork forks and twin shock rear units. Braking relies on single disc at the front and drum at the rear, with a 1465 mm wheelbase providing stability.
Performance-wise, the 1975 BMW R90/6 achieves a claimed top speed of 190 km/h (118 mph). With a generous fuel capacity of 17.0 liters, it offers reasonable range for touring motorcycle duties. The seat height of 810 mm makes it comfortable for most riders.
Known Issues
- Final drive spline wear on shaft-drive models
- Pushrod tube seal leaks
- Rocker arm wear
- Starter motor brushes wear over time
Fun Facts
- The 1975 BMW R90/6 was produced in BMW's Germany facilities
- The 1975 BMW R90/6 featured a steel double cradle frame typical of 1970s design philosophy
Collector Information
- Parts Availability
- Good
- Collector Rating
- 6/10
Resources & Parts
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