14 August. Friday 2026
BMW R 100 - 1981 Specifications and Reviews
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.
General information | |
| Category | Touring |
| Year | 1981 |
| Model | BMW R 100 |
Engine and Transmission Specifications | |
| Transmission type,final drive | Shaft drive (cardan) |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | OHV |
| Valves per cylinder | 2 |
| Bore x stroke | 94.0 x 70.6 mm (3.7 x 2.8 inches) |
| Compression | 8.2:1 |
| Top speed | 191.0 km/h (118.7 mph) |
| Power | 67.00 |
| Engine type | Two cylinder boxer, four-stroke |
| Capacity: | 979.00 ccm (59.74 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Expanding brake |
| Front brakes | Dual disc |
| Rear tyre dimensions | 4.00-18 |
| Front tyre dimensions | 3.25-19 |
Physical measures and capacities | |
| Fuel capacity | 24.00 litres (6.34 gallons) |
| Weight incl. oil, gas, etc | 236.0 kg (520.3 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
67 hp
Peak Power
6.5s
0-60 mph
118.7 mph
Top Speed
Best For
Track25%
City45%
Cornering50%
Daily Riding65%
Touring88%
Passenger75%
Rider Profile
| Best For | Best suited to riders with at least some experience, as the shaft-drive boxer twin has quirky low-speed torque reaction and needs deliberate, confident handling. |
| Purpose | Built for long-distance touring and steady highway cruising rather than outright speed or sporty cornering. |
| Rider Fit | A tall, heavy classic tourer that demands decent strength and confidence at parking-lot speeds and stops. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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