General information |
Model name
|
BMW R4 Series 1 |
Year of manufacture
|
1932 |
Type
|
Allround |
Rating
|
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Engine and transmission |
Engine size
|
398.0 ccm (24.29 cubic inches) |
Type of engine
|
Single cylinder, four-stroke |
Output
|
12.0 HP (8.8 kW)) @ 4000 RPM |
Top speed
|
100.0 km/h (62.1 mph) |
Compression
|
5.7:1 |
Bore x stroke
|
84.0 x 78.0 mm (3.3 x 3.1 inches) |
Fuel system
|
Carburettor. SUM CK 3/500 Fr |
Fuel control
|
Overhead Valves (OHV) |
Ignition
|
Battery |
Lubrication system
|
Wet sump |
Cooling system
|
Air |
Transmission type
|
Shaft drive (cardan) (final drive) |
Clutch
|
Dry-single plate-cable operated |
Fuel consumption
|
3.50 litres/100 km (28.6 km/l or 67.21 mpg) |
Greenhouse gases
|
81.2 CO2 g/km. (CO2 - Carbon dioxide emission) |
Chassis, suspension, brakes and wheels |
Frame type
|
Pressed steel duplex |
Front suspension
|
Friction shock absorber |
Rear suspension
|
Rigid |
Front tire
|
3.50-26.00 |
Rear tire
|
3.50-26.00 |
Front brakes
|
Expanding brake (drum brake) |
Diameter
|
180 mm (7.1 inches) |
Rear brakes
|
Expanding brake (drum brake) |
Diameter
|
180 mm (7.1 inches) |
Seat
|
Solo seat with springs |
Physical measures and capacities |
Weight incl. oil, gas, etc
|
137.0 kg (302.0 pounds) |
Overall height
|
950 mm (37.4 inches) |
Overall length
|
1980 mm (78.0 inches) |
Overall width
|
850 mm (33.5 inches) |
Wheelbase
|
1300 mm (51.2 inches) |
Fuel capacity
|
10.00 litres (2.64 US gallons) |
Other specifications |
Starter
|
Kick |
Carrying capacity
|
200kg |
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 32 BMW R4 Series 1 discussion group or the general BMW discussion group. |
Related bikes | List related bikes for comparison of specs. |
|
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