The BMW R28 Military motorcycle specifications include a 247 cc (15.07 cu in) engine, a 4-speed gearbox, and a listed weight of 155 kg (341.7 lb).
Key specifications
How the BMW R28 Military 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 73% lower than the BMW database average. Around the 4th percentile across BMW models.
About 32% lighter than the BMW database average. Around the 6th percentile across BMW models.
Very close to the BMW database average. Around the 29th percentile across BMW models.
About 22% smaller than the BMW database average. Around the 19th 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.
247 cc — larger displacement than about 4% of BMW models.
155 kg — heavier than about 6% of BMW models, or lighter than about 94%.
785 mm — taller than about 29% of BMW models.
15 L — larger than about 19% 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.
2,080
2,193
5% below average.
790
877
10% below average.
1,010
1,199
16% below average.
1,320
1,497
12% below average.
785
809
Close to average.
170
125
36% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 3.27-18 |
|---|---|
| Rear tire size | 3.27-18 |
| Estimated theoretical fuel range | 385 km |
| Bore/stroke ratio | 1.00:1 (Square) |
Model information
| Year released | 1964 |
|---|---|
| Category | Allround |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 247 cc (15.07 cu in) |
| Bore × stroke | 68.0 x 68 mm (2.7 x 2.7 inches) |
| Compression ratio | 8.2:1 |
| Cooling system | Air |
| Fuel system | Carburettor. Rubber mounted slide |
| Fuel control | Overhead Valves (OHV) |
| Ignition | Centrifugal |
| 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 cradle |
|---|---|
| Front suspension | Cartridge |
| Rear suspension | Twin shock-Swingarm |
| Front wheel travel | 126 mm (5.0 inches) |
| Rear wheel travel | 105 mm (4.1 inches) |
Brakes, wheels and tires
| Front brakes | Expanding brake (drum brake) |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
| Front tire | 3.27-18 |
| Rear tire | 3.27-18 |
Dimensions and weight
| Wet weight | 155 kg (341.7 lb) |
|---|---|
| Seat height | 785 mm (30.9 inches) |
| Overall length | 2,080 mm (81.9 inches) |
| Overall width | 790 mm (31.1 inches) |
| Overall height | 1,010 mm (39.8 inches) |
| Wheelbase | 1,320 mm (52.0 inches) |
| Ground clearance | 170 mm (6.7 inches) |
| Carrying capacity | 375kg |
Fuel and emissions
| Fuel capacity | 15.00 L (3.96 US gal) |
|---|---|
| Fuel consumption | 3.90 L/100 km (25.6 km/l or 60.31 mpg) |
| Greenhouse gases | 90.5 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Performance
| Top speed | 105.0 km/h (65.2 mph) |
|---|
Electrical and instruments
| Lights | 160mm diameter headlamp |
|---|
Other specifications
| Seat | Spring-mounted 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.