15 May. Friday 2026
BMW R 45 - 1980 Specifications and Reviews
The 1980 BMW R 45 is a lightweight touring motorcycle powered by an air-cooled 473cc boxer twin, delivering 35 horsepower. Well-suited for practical riders seeking reliable, economical long-distance travel, it's characterized by its shaft-drive efficiency and manageable weight. Known for BMW's legendary dependability and smooth ride quality, the R 45 remains a favorite among vintage motorcycle enthusiasts.
General information | |
| Category | Touring |
| Year | 1980 |
| Model | BMW R 45 |
| | |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Shaft drive (cardan) |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | OHV |
| Valves per cylinder | 2 |
| Bore x stroke | 70.0 x 61.5 mm (2.8 x 2.4 inches) |
| Compression | 9.2:1 |
| Power | 35.00 |
| Stroke | 4 |
| Engine type | Two cylinder boxer |
| Capacity: | 473.00 ccm (28.86 cubic inches) |
| | |
Physical measures and capacities | |
| Weight incl. oil, gas, etc | 206.0 kg (454.2 pounds) |
BMW R 45 dimensions and frame | |
| Rear brakes | Expanding brake |
| Front brakes | Single disc |
| Rear tyre dimensions | 4.00-18 |
| Front tyre dimensions | 3.25-18 |
Speed and acceleration | |
| Top speed | 160.0 km/h (99.4 mph) |
Other specs | |
| Fuel capacity | 22.00 litres (5.81 gallons) |
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