General İnformation |
| Model |
BMW R51 |
| Year |
1938 |
| Category |
Allround |
Engine and transmission |
| Displacement |
494.00 ccm (30.14 cubic inches) |
| Power |
24.07 HP (17.6 kW)) @ 5600 RPM |
| Top speed |
140.0 km/h (87.0 mph) |
| Compression |
6.7:1 |
| Bore x stroke |
68.0 x 68.0 mm (2.7 x 2.7 inches) |
| Fuel system |
Carburettor. Amal |
| Fuel control |
Overhead Valves (OHV) |
| Ignition |
Battery |
| Lubrication system |
Wet sump |
| Cooling system |
Air |
| Gearbox |
4-speed |
| Transmission type, final drive |
Shaft drive (cardan) |
| Fuel consumption |
4.00 litres/100 km (25.0 km/l or 58.81 mpg) |
| Greenhouse gases |
92.8 CO2 g/km. (CO2 - Carbon dioxide emission) |
Chassis, suspension, brakes and wheels |
| Frame type |
Steel single cradle |
| Front suspension |
Cartridge |
| Rear suspension |
Twin shock-Swingarm |
| Frame |
3.50-19.00 |
| Front tyre |
3.50-19.00 |
| Rear tyre |
3.50-19.00 |
| Front brakes |
Expanding brake (drum brake) |
| Front brakes diamete |
200 mm (7.9 inches) |
| Rear brakes |
Expanding brake (drum brake) |
| rear_brakes_diameter |
200 mm (7.9 inches) |
| Seat |
Single seat |
Physical measures and capacities |
| Weight incl. oil, gas, etc |
182.0 kg (401.2 pounds) |
| Overall height |
960 mm (37.8 inches) |
| Overall length |
2,130 mm (83.9 inches) |
| Overall width |
815 mm (32.1 inches) |
| Wheelbase |
1,400 mm (55.1 inches) |
| Fuel capacity |
14.00 litres (3.70 gallons) |
Other specifications |
| Starter |
Kick |
| Carrying capacity |
210kg |
