Touring Motorcycles
1981BMW R 100
19 fields on record
The 1981 BMW R 100 is a classic touring motorcycle that appeals to riders seeking reliable, long-distance capability and timeless boxer-engine character. Its air-cooled 979cc flat-twin engine delivers smooth, predictable power suited for extended highway cruising. Best known for its legendary durability, shaft drive practicality, and comfortable riding position, the R 100 remains an iconic choice for adventure-minded touring enthusiasts.
- Capacity
- 979.0 ccm
- Engine
- Boxer, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 236.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 67.0 HP (49.3 kW) @ 7000 RPM
What’s new for the 1981 BMW R 100
vs the 1980| Spec | 1980 | 1981 |
|---|---|---|
| Wet weight | 218.0 kg (480.6 pounds) | 236.0 kg (520.3 pounds) |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for long-distance touring and steady highway cruising rather than outright speed or sporty cornering.
- Built for
- An air-cooled, mechanically simple, character-rich boxer twin that rewards a relaxed, unhurried riding style.
- Not ideal for
- Not a good fit for riders wanting sharp agility, off-road capability, or modern sportbike performance.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 979.0 ccm
- Power
- 67.0 HP (49.3 kW) @ 7000 RPM
- Engine type
- Boxer, four-stroke
- Power/weight ratio
- 0.2839 HP/kg (wet)
- Bore x stroke
- 94.0 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
- 191.0 km/h (118.7 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Expanding brake
- Front tyre
- 3.25-19
- Rear tyre
- 4.00-18
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 | 1980 | 1981 | 1982 | 1983 |
|---|---|---|---|---|
| Capacity | 979 cc | 979 cc | 979 cc | 979 cc |
| Fuel capacity | 24 L | 24 L | 24 L | 24 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 100?
The 1981 BMW R 100 has a Capacity of 979.0 ccm (59.74 cubic inches).
What engine power does the BMW R 100 have?
The 1981 BMW R 100 has a Power of 67.0 HP (49.3 kW) @ 7000 RPM.
How many gears does the BMW R 100 have?
The 1981 BMW R 100 has a Gearbox of 5-speed.
How much does the BMW R 100 weigh?
The 1981 BMW R 100 has a Wet weight of 236.0 kg (520.3 pounds).
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