General İnformation |
| Model |
BMW R39 |
| Year |
1927 |
| Category |
Naked bike |
Engine and transmission |
| Displacement |
247.00 ccm (15.07 cubic inches) |
| Power |
5.98 HP (4.4 kW)) @ 4000 RPM |
| Top speed |
100.0 km/h (62.1 mph) |
| Compression |
6.1:1 |
| Bore x stroke |
68.0 x 68.0 mm (2.7 x 2.7 inches) |
| Fuel system |
Carburettor. 20mm BMW Spezial |
| Fuel control |
Overhead Valves (OHV) |
| Lubrication system |
Wet sump |
| Cooling system |
Air |
| Gearbox |
3-speed |
| Transmission type, final drive |
Shaft drive (cardan) |
Chassis, suspension, brakes and wheels |
| Frame type |
Steel doble cradle |
| Front suspension |
Leading link |
| Rear suspension |
Rigid |
| Frame |
3.5-27 |
| Front tyre |
3.5-27 |
| Rear tyre |
3.5-27 |
| Front brakes |
Expanding brake (drum brake) |
Physical measures and capacities |
| Weight incl. oil, gas, etc |
110.0 kg (242.5 pounds) |
| Overall height |
950 mm (37.4 inches) |
| Overall length |
2,050 mm (80.7 inches) |
| Overall width |
800 mm (31.5 inches) |
Other specifications |
