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BMW R51 19401940 BMW R51 specifications, pictures, reviews and rating |
| General information | |
|---|---|
| Motorcycle name | BMW R51 |
| Year | 1940 |
| Category | Allround |
| Rating |
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| Engine and transmission | |
| Displacement | 494.0 ccm (30.14 cubic inches) |
| Engine type | Two cylinder boxer, four-stroke |
| Power | 24.1 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 | Shaft drive (cardan) (final drive) |
| Clutch | Dry-single plate-cable operated |
| Chassis, suspension, brakes and wheels | |
| Frame type | Steel single cradle |
| Front suspension | Cartridge |
| Rear suspension | Twin shock-Swingarm |
| Front tire | 3.50-19.00 |
| Rear tire | 3.50-19.00 |
| Front brakes | Expanding brake (drum brake) |
| Diameter | 200 mm (7.9 inches) |
| Rear brakes | Expanding brake (drum brake) |
| Diameter | 200 mm (7.9 inches) |
| Physical measures and capacities | |
| Weight incl. oil, gas, etc | 182.0 kg (401.2 pounds) |
| Overall height | 960 mm (37.8 inches) |
| Overall length | 2130 mm (83.9 inches) |
| Overall width | 815 mm (32.1 inches) |
| Wheelbase | 1400 mm (55.1 inches) |
| Fuel capacity | 14.00 litres (3.70 US gallons) |
| Other specifications | |
| Starter | Kick |
| Update specs | Report missing specs or required updates. |
| Further information | |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Ask questions | Join the 40 BMW R51 discussion group or the general BMW discussion group. |
| Related bikes | List related bikes for comparison of specs. |
| Compare with another motorcycle | |
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