22 June. Monday 2026
BMW R 45 - 1984 Specifications and Reviews
The 1984 BMW R 45 is a lightweight classic middleweight boxer twin best suited for everyday riders and touring enthusiasts. Its air-cooled 473cc engine delivers predictable power through a smooth 5-speed gearbox and shaft drive, making it reliable and easy to maintain. Known for balanced handling and practical comfort, the R 45 remains an accessible entry point into BMW motorcycle ownership.
General information | |
| Category | Classic |
| Year | 1984 |
| 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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