22 June. Monday 2026
BMW R 850 R - 2004 Specifications and Reviews
The 2004 BMW R 850 R is a versatile naked bike ideally suited for riders seeking upright, comfortable riding position and reliable everyday performance. Known for its iconic air-oil-cooled boxer engine delivering smooth power delivery, this bike excels as an accessible, practical middleweight for both experienced and intermediate riders seeking classic BMW engineering with modern fuel injection reliability.
General information | |
| Category | Naked bike |
| Year | 2004 |
| Model | BMW R 850 R |
| | |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Shaft drive (cardan) |
| Gearbox | 6-speed |
| Cooling system | Oil & air |
| Fuel control | OHC |
| Valves per cylinder | 4 |
| Fuel system | Injection |
| Bore x stroke | 87.5 x 70.5 mm (3.4 x 2.8 inches) |
| Compression | 10.3:1 |
| Torque | 77.00 |
| Power | 70.00 |
| Stroke | 4 |
| Engine type | Two cylinder boxer |
| Capacity: | 848.00 ccm (51.74 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,487 mm (58.5 inches) |
| Overall width | 940 mm (37.0 inches) |
| Overall length | 2,170 mm (85.4 inches) |
| Overall height | 1,220 mm (48.0 inches) |
| Alternate seat height | 800 mm (31.5 inches) If adjustable, highest setting. |
| Seat height | 770 mm (30.3 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 238.0 kg (524.7 pounds) |
| Dry weight | 218.0 kg (480.6 pounds) |
BMW R 850 R dimensions and frame | |
| Rear brakes diameter | 276 mm (10.9 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 320 mm (12.6 inches) |
| Front brakes | Double disc |
| Rear tyre dimensions | 170/60-ZR18 |
| Front tyre dimensions | 120/70-ZR17 |
| Rear suspension travel | 135 mm (5.3 inches) |
| Rear suspension | Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever; central strut, spring pre-load adjustable to continuously variable levels by means of hydraulic handwheel, rebound damping adjustable |
| Front suspension travel | 120 mm (4.7 inches) |
| Front suspension | BMW Motorrad Telelever; stanchion diameter 35 mm, central strut, rebound damping adjustable |
| Rake (fork angle) | 28.0° |
| Frame type | Three-section composite frame consisting of front and rear section, load bearing engine. |
Speed and acceleration | |
| Power/weight ratio | 0.3211 HP/kg |
| Top speed | 187.0 km/h (116.2 mph) |
Other specs | |
| Fuel consumption pr. 10 km (6.2 miles) | 4.60 litres (1.22 gallons) |
| Reserve fuel capacity | 4.00 litres (1.06 gallons) |
| Fuel capacity | 20.50 litres (5.42 gallons) |
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