The BMW R 18 Classic 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 365.1 kg (805 lb).
Key specifications
The 2021 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the BMW R 18 Classic 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 15% lower than the BMW database average. Around the 1st percentile across BMW models.
About 17% smaller than the BMW database average. Around the 29th 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.
691 mm — taller than about 1% of BMW models.
16 L — larger than about 29% 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.
2,441
2,193
11% above average.
965
877
10% above average.
1,125
1,199
6% below average.
1,730
1,497
16% above average.
691
809
15% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 130/90-B16 |
|---|---|
| Rear tire size | 180/65-B16 |
| Power-to-weight ratio | 0.249 hp/kg |
| Power-to-weight | 249.2 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 pipe fuel injection, BMS-K+ electronic engine management with overrun cut-off, twin-spark ignition |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | BMS-K+ electronic engine management with overrun cut-off and twin-spark ignition |
| 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 | 89 mm (3.5 inches) |
| Rake | 22.7° |
| Trail | 150 mm (5.9 inches) |
Brakes, wheels and tires
| Front brakes | Double disc. 4 piston fixed calipers, BMW Motorrad Integral ABS (partially integral) |
|---|---|
| Rear brakes | Single disc. Single disc brake, fixed caliper |
| Front tire | 130/90-B16 |
| Rear tire | 180/65-B16 |
| Wheels | Wire spoked |
Dimensions and weight
| Dry weight | 365.1 kg (805 lb) |
|---|---|
| Seat height | 691 mm (27.2 inches) |
| Overall length | 2,441 mm (96.1 inches) |
| Overall width | 965 mm (38.0 inches) |
| Overall height | 1,125 mm (44.3 inches) |
| Wheelbase | 1,730 mm (68.1 inches) |
Fuel and emissions
| Fuel capacity | 16.01 L (4.23 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) |
|---|---|
| Power/weight ratio | 0.2492 hp/kg |
Electrical and instruments
| Electrical | Permanent magnet generator 600 W. 12 V / 26 Ah, maintenance-free. |
|---|---|
| Lights | LED headlight |
Other specifications
| Color options | Black |
|---|---|
| Seat | Solo seat |
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.