14 August. Friday 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 | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| 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) |
Performance Profile & Rider Fit
69.7 hp
Peak Power
4.8s
0-60 mph
116.2 mph
Top Speed
Best For
Track25%
City65%
Cornering60%
Daily Riding82%
Touring74%
Passenger68%
Rider Profile
| Best For | Suits riders from mid-level to experienced who want a torquey, low-maintenance shaft-drive naked rather than an outright sportbike. |
| Purpose | Built as a comfortable, practical all-rounder for commuting, backroad riding, and light touring rather than outright performance. |
| Rider Fit | The 800mm seat height and upright naked-bike ergonomics make it approachable for riders of average and shorter stature, though the 238kg wet weight demands some confidence at low speeds. |
| Character | A classic BMW boxer-twin character: relaxed, torque-driven, mechanically distinctive, and reassuringly stable rather than exciting. |
| Not Ideal For | Not for riders chasing high-speed thrills, track-day lap times, or any serious off-road capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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