The BMW R25 2 motorcycle specifications include a 247 cc (15.07 cu in) engine, power of 12 hp (8.7 kW) @ 5,600 rpm, a 4-speed gearbox, and a listed weight of 140 kg (308.6 lb).
Key specifications
Year-specific specification changes
How the BMW R25 2 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 85% lower than the BMW database average. Around the 3rd percentile across BMW models.
About 73% lower than the BMW database average. Around the 4th percentile across BMW models.
About 38% lighter than the BMW database average. Around the 5th percentile across BMW models.
About 10% lower than the BMW database average. Around the 4th percentile across BMW models.
About 38% smaller than the BMW database average. Around the 6th 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.
12 hp — more powerful than about 3% of BMW models with power data.
247 cc — larger displacement than about 4% of BMW models.
140 kg — heavier than about 5% of BMW models, or lighter than about 95%.
730 mm — taller than about 4% of BMW models.
12 L — larger than about 6% 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.
2,020
2,193
8% below average.
790
877
10% below average.
730
1,199
39% below average.
1,335
1,497
11% below average.
730
809
10% below average.
108
125
13% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 2.99-19 |
|---|---|
| Rear tire size | 2.99-19 |
| Estimated theoretical fuel range | 414 km |
| Power-to-weight ratio | 0.086 hp/kg |
| Power-to-weight | 85.7 hp/tonne |
| Specific power | 48.6 hp/L |
| Bore/stroke ratio | 1.00:1 (Square) |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 247 cc (15.07 cu in) |
| Power | 12 hp (8.7 kW) @ 5,600 rpm |
| Bore × stroke | 68.0 x 68 mm (2.7 x 2.7 inches) |
| Compression ratio | 6.5:1 |
| Cooling system | Air |
| Fuel system | Carburettor. Bing |
| Fuel control | Overhead Valves (OHV) |
| Ignition | Battery |
| Starter | Kick |
| Lubrication | Wet sump |
Transmission and drivetrain
| Gearbox | 4-speed |
|---|---|
| Final drive | Shaft drive (cardan) (final drive) |
| Clutch | Single plate dry-cable operated |
Chassis and suspension
| Frame | Steel-single cradlel |
|---|---|
| Front suspension | Cartridge |
| Rear suspension | Twin shock-Plunger |
Brakes, wheels and tires
| Front brakes | Expanding brake (drum brake) |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
| Front tire | 2.99-19 |
| Rear tire | 2.99-19 |
Dimensions and weight
| Wet weight | 140 kg (308.6 lb) |
|---|---|
| Seat height | 730 mm (28.7 inches) |
| Overall length | 2,020 mm (79.5 inches) |
| Overall width | 790 mm (31.1 inches) |
| Overall height | 730 mm (28.7 inches) |
| Wheelbase | 1,335 mm (52.6 inches) |
| Ground clearance | 108 mm (4.3 inches) |
Fuel and emissions
| Fuel capacity | 12.00 L (3.17 US gal) |
|---|---|
| Fuel consumption | 2.90 L/100 km (34.5 km/l or 81.11 mpg) |
| Greenhouse gases | 67.3 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Performance
| Top speed | 80.0 km/h (49.7 mph) |
|---|
Electrical and instruments
| Battery | Lubrication system |
|---|
Other specifications
| Seat | Solo seat with springs |
|---|
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.