Naked Motorcycles
1984BMW R 80 ST
19 fields on record
The 1984 BMW R 80 ST is a lightweight touring motorcycle powered by an air-cooled 797cc boxer twin producing 50 horsepower. Its shaft-driven reliability, comfortable seating, and manageable 434-pound weight make it ideal for long-distance touring and everyday riding. Best known for combining BMW's legendary durability with accessible performance and fuel efficiency.
- Capacity
- 797.0 ccm
- Engine
- Boxer
- Gearbox
- 5-speed
- Wet weight
- 197.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 50.0 HP (36.8 kW) @ 6500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a classic air-cooled touring roadster for steady, unhurried long-distance travel rather than outright performance.
- Built for
- Has the understated, mechanical charm typical of 1980s BMW boxers, favoring smooth torque delivery over excitement.
- Not ideal for
- Not a good fit for riders seeking sharp acceleration, aggressive cornering ability, or serious off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 797.0 ccm
- Power
- 50.0 HP (36.8 kW) @ 6500 RPM
- Engine type
- Boxer
- Power/weight ratio
- 0.2538 HP/kg
- Bore x stroke
- 84.8 x 70.6 mm
- Compression
- 8.2:1
- Cooling system
- Air
- Valves per cylinder
- 2
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Shaft
Performance
- Top speed
- 172.0 km/h (106.9 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Expanding brake
- Front tyre
- 100/90-19
- Rear tyre
- 120/90-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1982 | 1983 | 1984 |
|---|---|---|---|
| Capacity | 797 cc | 797 cc | 797 cc |
| Fuel capacity | 19 L | 19 L | 19 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the BMW R 80 ST?
The 1984 BMW R 80 ST has a Capacity of 797.0 ccm (48.64 cubic inches).
What engine power does the BMW R 80 ST have?
The 1984 BMW R 80 ST has a Power of 50.0 HP (36.8 kW) @ 6500 RPM.
How many gears does the BMW R 80 ST have?
The 1984 BMW R 80 ST has a Gearbox of 5-speed.
How much does the BMW R 80 ST weigh?
The 1984 BMW R 80 ST has a Wet weight of 197.0 kg (434.3 pounds).
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