General information |
Motorcycle name
|
BMW R51 |
Year
|
1940 |
Category
|
Allround |
Rating
|
Do you know this bike? Click here to rate it. We miss 2 votes to show the rating. |
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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property of the respective owners. Technical specifications are subject to change without notice.