The BMW R 18 B motorcycle specifications include a 1,802 cc (109.96 cu in) engine, power of 91 hp (66.4 kW) @ 4,750 rpm, a 6-speed gearbox, and a listed weight of 397.8 kg (877 lb).
Key specifications
The 2022 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the BMW R 18 B 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.
About 12% higher than the BMW database average. Around the 65th percentile across BMW models.
About 98% higher than the BMW database average. Around the 99th percentile across BMW models.
About 75% heavier than the BMW database average. Around the 99th percentile across BMW models.
About 11% lower than the BMW database average. Around the 3rd percentile across BMW models.
About 26% larger than the BMW database average. Around the 88th 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.
91 hp — more powerful than about 65% of BMW models with power data.
1,802 cc — larger displacement than about 99% of BMW models.
397.8 kg — heavier than about 99% of BMW models, or lighter than about 1%.
719 mm — taller than about 3% of BMW models.
24.2 L — larger than about 88% 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.
2,560
2,193
17% above average.
970
877
11% above average.
1,400
1,199
17% above average.
1,730
1,497
16% above average.
719
809
11% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 120/70-R19 |
|---|---|
| Rear tire size | 180/65-B16 |
| Power-to-weight ratio | 0.229 hp/kg |
| Power-to-weight | 228.8 hp/tonne |
| Specific power | 50.5 hp/L |
| Bore/stroke ratio | 1.07:1 (Oversquare) |
Engine specifications
| Engine type | Two cylinder boxer, four-stroke |
|---|---|
| Displacement | 1,802 cc (109.96 cu in) |
| Power | 91 hp (66.4 kW) @ 4,750 rpm |
| Torque | 157.3 Nm (16.0 kgf-m or 116.0 ft.lbs) @ 3,000 rpm |
| Bore × stroke | 107.1 x 100 mm (4.2 x 3.9 inches) |
| Compression ratio | 9.6:1 |
| Valves per cylinder | 4 |
| Cooling system | Oil & air |
| Fuel system | Injection. Electronic intake manifold fuel injection/digital engine management: BMS-O with electromotive throttle controller |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Starter | Electric |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Shaft drive (cardan) (final drive) |
| Clutch | Single-disc dry |
Chassis and suspension
| Frame | Double-cradle steel |
|---|---|
| Front suspension | Telescopic fork |
| Rear suspension | Steel swingarm with central shock strut |
| Front wheel travel | 119 mm (4.7 inches) |
| Rear wheel travel | 119 mm (4.7 inches) |
| Rake | 22.7° |
| Trail | 150 mm (5.9 inches) |
Brakes, wheels and tires
| Front brakes | Double disc. 4 piston fixed calipers. ABS. |
|---|---|
| Rear brakes | Single disc. 4 piston fixed calipers. ABS. |
| Front tire | 120/70-R19 |
| Rear tire | 180/65-B16 |
| Wheels | Wire spoked |
Dimensions and weight
| Wet weight | 397.8 kg (877 lb) |
|---|---|
| Seat height | 719 mm (28.3 inches) |
| Overall length | 2,560 mm (100.8 inches) |
| Overall width | 970 mm (38.2 inches) |
| Overall height | 1,400 mm (55.1 inches) |
| Wheelbase | 1,730 mm (68.1 inches) |
Fuel and emissions
| Fuel capacity | 24.22 L (6.40 US gal) |
|---|---|
| Reserve fuel capacity | 3.79 L (1.00 US gal) |
| Emission details | Regulated three-way catalytic converter |
Performance
| Top speed | 178.6 km/h (111.0 mph) |
|---|
Electrical and instruments
| Electrical | Permanent magnet generator 600 W. 12 V / 26 Ah, maintenance-free. |
|---|---|
| Lights | LED headlight |
Other specifications
| Color options | Black Storm Metallic, Galaxy Dust Metallic/Titan Silver Metallic, Manhattan Metallic Matte |
|---|
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.