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Start of Production |
1929 |
Click to View |
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End of
Production |
1930 |
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Number
Produced: |
7,500
(All Series) |
|
Price: |
1,750
RM |
|
Engine |
|
|
Internal Designation |
M 56 |
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Motor Type |
Four
Stroke two cylinder flat twin |
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Bore
x Stroke |
78 x
78 mm (3.07 x 3.07 in) |
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Displacement |
745
cc |
|
Maximum Power |
18hp
at 3,400 rpm |
|
Compression Ratio |
5.5 :
1 |
|
Valves |
Side
Valve |
|
Carburation System |
Single carburettor type BMW 24 mm |
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Engine Lubricating System |
Forced Feed Lubrication |
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Oil
Pump |
Gear
Pump |
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|
|
Power
Transmission |
|
|
Clutch |
Single plate dry clutch |
|
Number of Gears |
Three |
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Gear
Shift |
Manual |
|
Gearbox Ratios |
2.83
/ 1.55 / 1.08 |
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Rear
Wheel Ratio |
1 :
4.07 (1 : 5.18 or 1 : 4.75 with sidecar) |
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Bevel
/ Crownwheel |
14 / 57
(11 / 57 or 12 / 57 with sidecar) |
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Electrical System |
|
|
Ignition System |
Magneto |
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Generator |
Bosch
Magneto generator D2L or Magneto Ignition FF2 |
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Spark
Plugs |
Bosch
W 175 T1 |
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Chassis |
|
|
Designation |
F66 |
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Frame |
Twin
loop pressed steel frame |
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Front
Suspension |
Plate
spring 9 laminae |
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Rear
Suspension |
Rigid |
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Wheel
Rims |
26 x
3.5 safety rims |
|
Front
Tyre |
26 x
3.5 low pressure or 26 x 3.25 high pressure |
|
Rear
Tyre |
26 x
3.5 low pressure or 26 x 3.25 high pressure |
|
Front
Brakes |
Drum
brake 200 mm / 7.87 in diameter |
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Rear
Brake |
Cardan brake, 37 mm / 1.45 in width |
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|
Dimensions/Weights |
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|
Length x Width x Height |
2100 x 890 x 940 mm (7.87 x 35.03 in) |
|
Wheel
Base |
1380
mm / 54.33 in) |
|
Fuel
Tank Capacity |
14
litres / 3.07 gal / 3.69 gal US |
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Unladen Weight with full tank |
162
kg / 356 lb |
|
Load
Rating |
210
kg / 462 lb |
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Fuel
Consumption per 100 kilometres |
4 to
4.5 litres approx / 70 - 62 mpg / 58 - 52 mpg US |
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Oil
Consumption |
1 to
2 litres per 1,000 kilometres |
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Top
Speed |
95 -
100 kph / 59 - 62 mph |
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