14 August. Friday 2026
BMW R 1150 R Rockster - 2004 Specifications and Reviews
The 2004 BMW R 1150 R Rockster is a retro-styled naked bike suited for riders seeking classic aesthetics with modern performance. Its air-oil cooled boxer engine delivers strong torque for everyday riding and highway cruising. Known for distinctive styling and reliable engineering, it appeals to those wanting accessible, characterful motorcycling without complexity.
2004
General information | |
| Category | Naked bike |
| Year | 2004 |
| Model | BMW R 1150 R Rockster |
| | |
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 | 101.0 x 70.5 mm (4.0 x 2.8 inches) |
| Compression | 10.3:1 |
| Torque | 98.00 |
| Power | 83.81 |
| Stroke | 4 |
| Engine type | Two cylinder boxer |
| Capacity: | 1130.00 ccm (68.95 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,486 mm (58.5 inches) |
| Overall width | 920 mm (36.2 inches) |
| Overall length | 2,170 mm (85.4 inches) |
| Overall height | 1,097 mm (43.2 inches) |
| Alternate seat height | 845 mm (33.3 inches) If adjustable, highest setting. |
| Seat height | 835 mm (32.9 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 239.0 kg (526.9 pounds) |
| Dry weight | 219.0 kg (482.8 pounds) |
BMW R 1150 R Rockster 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 | 180/55-ZR17 |
| 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 |
| Frame type | Three-section composite frame consisting of front and rear section, load bearing engine. |
Speed and acceleration | |
| Power/weight ratio | 0.3827 HP/kg |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Reserve fuel capacity | 4.00 litres (1.06 gallons) |
| Fuel capacity | 20.50 litres (5.42 gallons) |
Performance Profile & Rider Fit
83.8 hp
Peak Power
4.2s
0-60 mph
Best For
Track35%
City65%
Cornering68%
Daily Riding70%
Touring55%
Passenger45%
Rider Profile
| Best For | Best suited to riders with some experience who appreciate a characterful boxer engine and shaft-drive quirks over outright sportbike performance. |
| Purpose | A muscular, style-focused naked bike meant for spirited street riding and weekend backroad blasts rather than track days or long-haul touring. |
| Rider Fit | The tall 835mm seat height and 239kg wet weight demand reasonable rider height and confidence at low speed, though the wide bars keep steering effort manageable. |
| Character | Torquey, distinctive, and mechanically charismatic, with the boxer's low-end pull and shaft drive giving it a relaxed, unmistakable personality rather than razor-sharp aggression. |
| Not Ideal For | Not a good fit for riders seeking off-road capability, a passenger-friendly plush tourer, or cutting-edge outright acceleration. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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