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General information |
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Motorcycle name
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BMW R25 |
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Year model
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1951 |
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Type
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Allround |
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Rating
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2.8 Check out the detailed rating of reliability, maintenance costs, value for money, etc. Compare with any other motorcycle. |
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Engine and transmission |
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Engine size
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247.0 ccm (15.07 cubic inches) |
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Type of engine
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Single cylinder, four-stroke |
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Effect
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12.0 HP (8.8 kW)) @ 5600 RPM |
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Top speed
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80.0 km/h (49.7 mph) |
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Compression
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6.5:1 |
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Bore x stroke
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68.0 x 68.0 mm (2.7 x 2.7 inches) |
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Fuel system
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Carburettor. Bing |
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Fuel control
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Overhead Valves (OHV) |
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Ignition
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Battery |
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Lubrication system
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Wet sump |
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Cooling system
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Air |
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Gearbox
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4-speed |
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Transmission type
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Shaft drive (cardan) (final drive) |
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Clutch
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Single plate dry-cable operated |
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Fuel consumption
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3.50 litres/100 km (28.6 km/l or 67.21 mpg) |
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Greenhouse gases
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81.2 CO2 g/km. (CO2 - Carbon dioxide emission) |
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Chassis, suspension, brakes and wheels |
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Frame type
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Steel-single cradlel |
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Front suspension
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Cartridge |
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Rear suspension
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Pushrod |
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Front tire
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3.25-19 |
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Rear tire
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3.25-19 |
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Front brakes
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Expanding brake (drum brake) |
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Diameter
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160 mm (6.3 inches) |
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Rear brakes
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Expanding brake (drum brake) |
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Diameter
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160 mm (6.3 inches) |
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Physical measures and capacities |
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Weight incl. oil, gas, etc
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140.0 kg (308.6 pounds) |
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Overall height
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710 mm (28.0 inches) |
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Overall length
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2073 mm (81.6 inches) |
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Overall width
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750 mm (29.5 inches) |
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Ground clearance
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92 mm (3.6 inches) |
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Fuel capacity
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12.00 litres (3.17 US gallons) |
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Other specifications |
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Starter
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Kick |
| Update specs | Report missing specs or required updates. |
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Further information |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Ask questions | Join the 51 BMW R25 discussion group or the general BMW discussion group. |
| Related bikes | List related bikes for comparison of specs. |
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Compare with another motorcycle |
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Pictures of classic bikes wanted
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bike on Bikez.com. Search for the bikes you have pictures of and use the link to upload pictures. See our contribution page. We also have a
discussion group about restoration and valuation of each bike. Vintage
and veteran bikes can be sold and bought through our free motorcycle classifieds.
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Rating sample for this BMW bike
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Racing track capabilities for the 1951 BMW R25:
 (40.7 out of 100)
Click here for complete rating. You can also compare bikes.
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property of the respective owners. Technical specifications are subject to change without notice.
