The BMW R 2 Series 1 motorcycle specifications include a 198 cc (12.08 cu in) engine, power of 6 hp (4.4 kW) @ 3,500 rpm, a 3-speed gearbox, and a listed weight of 122 kg (269 lb).
Key specifications
How the BMW R 2 Series 1 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 93% lower than the BMW database average. Around the 1st percentile across BMW models.
About 78% lower than the BMW database average. Around the 1st percentile across BMW models.
About 43% smaller than the BMW database average. Around the 4th 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.
6 hp — more powerful than about 1% of BMW models with power data.
198 cc — larger displacement than about 1% of BMW models.
11 L — larger than about 4% 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.
1,950
2,193
11% below average.
1,320
1,497
12% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 3.00-25 |
|---|---|
| Rear tire size | 3.00-25 |
| Estimated theoretical fuel range | 400 km |
| Power-to-weight ratio | 0.049 hp/kg |
| Power-to-weight | 49.2 hp/tonne |
| Specific power | 30.3 hp/L |
| Bore/stroke ratio | 0.98:1 (Square) |
Model information
| Year released | 1931 |
|---|---|
| Category | Classic |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 198 cc (12.08 cu in) |
| Power | 6 hp (4.4 kW) @ 3,500 rpm |
| Bore × stroke | 63.0 x 64 mm (2.5 x 2.5 inches) |
| Compression ratio | 6.7:1 |
| Cooling system | Air |
| Fuel system | Carburettor. Sum carburettor 19 mm |
| Fuel control | Overhead Valves (OHV) |
| Ignition | Battery ignition |
| Lubrication | Forced-feed lubrication |
Transmission and drivetrain
| Gearbox | 3-speed |
|---|---|
| Final drive | Shaft drive (cardan) (final drive) |
| Clutch | Single-plate, dry |
Chassis and suspension
| Frame | Pressed steel duplex frame |
|---|---|
| Front suspension | Cantilever spring, 9 laminae |
| Rear suspension | Rigit |
Brakes, wheels and tires
| Front brakes | Expanding brake (drum brake) |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
| Front tire | 3.00-25 |
| Rear tire | 3.00-25 |
Dimensions and weight
| Dry weight | 122 kg (269 lb) |
|---|---|
| Overall length | 1,950 mm (76.8 inches) |
| Wheelbase | 1,320 mm (52.0 inches) |
Fuel and emissions
| Fuel capacity | 11.00 L (2.91 US gal) |
|---|---|
| Fuel consumption | 2.75 L/100 km (36.4 km/l or 85.53 mpg) |
| Greenhouse gases | 63.8 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Performance
| Top speed | 95.0 km/h (59.0 mph) |
|---|---|
| Power/weight ratio | 0.0492 hp/kg |
Electrical and instruments
| Battery | ignition |
|---|
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.