The BMW R 1150 R Rockster motorcycle specifications include a 1,130 cc (68.95 cu in) engine, power of 83.8 hp (61.2 kW) @ 6,750 rpm, a 6-speed gearbox, and a listed weight of 239 kg (526.9 lb).
Key specifications
The 2004 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the BMW R 1150 R Rockster compares
This compares the motorcycle with all BMW models in this specifications database. The blue marker is this model and the grey line is the BMW database average.
Very close to the BMW database average. Around the 54th percentile across BMW models.
About 24% higher than the BMW database average. Around the 71st percentile across BMW models.
About 5% heavier than the BMW database average. Around the 69th percentile across BMW models.
Very close to the BMW database average. Around the 77th percentile across BMW models.
About 7% larger than the BMW database average. Around the 62nd percentile across BMW models.
BMW database percentile rankings
Percentiles show where this motorcycle sits across the BMW specifications database. They are descriptive database rankings, not performance ratings.
83.8 hp — more powerful than about 54% of BMW models with power data.
1,130 cc — larger displacement than about 71% of BMW models.
239 kg — heavier than about 69% of BMW models, or lighter than about 31%.
835 mm — taller than about 77% of BMW models.
20.5 L — larger than about 62% of BMW fuel tanks in this database.
Dimensions compared with BMW average
Each measurement is compared with the average value across BMW models where that dimension is available.
2,170
2,193
Close to average.
920
877
5% above average.
1,097
1,199
8% below average.
1,486
1,497
Close to average.
835
809
3% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 120/70-ZR17 |
|---|---|
| Rear tire size | 180/55-ZR17 |
| Power-to-weight ratio | 0.351 hp/kg |
| Power-to-weight | 350.6 hp/tonne |
| Specific power | 74.2 hp/L |
| Bore/stroke ratio | 1.43:1 (Oversquare) |
Engine specifications
| Engine type | Two cylinder boxer, four-stroke |
|---|---|
| Displacement | 1,130 cc (68.95 cu in) |
| Power | 83.8 hp (61.2 kW) @ 6,750 rpm |
| Torque | 98.0 Nm (10.0 kgf-m or 72.3 ft.lbs) @ 5,250 rpm |
| Bore × stroke | 101.0 x 70.5 mm (4.0 x 2.8 inches) |
| Compression ratio | 10.3:1 |
| Valves per cylinder | 4 |
| Cooling system | Oil & air |
| Fuel system | Injection |
| Fuel control | Overhead Cams (OHC) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Shaft drive (cardan) (final drive) |
Chassis and suspension
| Frame | Three-section composite frame consisting of front and rear section, load bearing engine. |
|---|---|
| Front suspension | BMW Motorrad Telelever; stanchion diameter 35 mm, central strut, rebound damping adjustable |
| 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 wheel travel | 120 mm (4.7 inches) |
| Rear wheel travel | 135 mm (5.3 inches) |
Brakes, wheels and tires
| Front brakes | Double disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 120/70-ZR17 |
| Rear tire | 180/55-ZR17 |
Dimensions and weight
| Wet weight | 239 kg (526.9 lb) |
|---|---|
| Dry weight | 219 kg (482.8 lb) |
| Seat height | 835 mm (32.9 inches) |
| Alternate seat height | 845 mm (33.3 inches) If adjustable, highest setting. |
| Overall length | 2,170 mm (85.4 inches) |
| Overall width | 920 mm (36.2 inches) |
| Overall height | 1,097 mm (43.2 inches) |
| Wheelbase | 1,486 mm (58.5 inches) |
Fuel and emissions
| Fuel capacity | 20.50 L (5.42 US gal) |
|---|---|
| Reserve fuel capacity | 4.00 L (1.06 US gal) |
Performance
| Power/weight ratio | 0.3827 hp/kg |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from BMW models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official BMW information before relying on them. Visit the official BMW website.