Technical specifications
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| Model: |
R 12 |
| Years: |
1935-42 |
|
Engine:
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Four stroke, two cylinder flat twin, SV
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|
Capacity:
|
745
|
|
Bore x Stroke:
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78 x 78 mm
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Compression Ratio:
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5.2:1
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Cooling System:
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Air cooled
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Induction:
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2 x Amal 6/406/407 (Single Carburetor option: 1 x SUM type CK ∅25 mm)
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Ignition:
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Magneto or battery ignition
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Starting:
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Kick
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Generator:
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Bosch D 245 RS 108
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Clutch:
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Double plate dry clutch
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Max Power:
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14.9 kW / 20hp @ 4000 rpm (Single Carburetor model: 13.4 kW / 18hp @ 3400 rpm)
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Transmission:
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4 Speed
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Final Drive:
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Shaft
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Gear Ratio:
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1st 3.18 / 2nd 2.06 / 3rd 1.42 / 4th 1.09:1
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Frame:
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Pressed steel twin loop frame
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Front Suspension:
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Telescopic fork
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Rear Suspension:
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Rigid, spring loaded saddle
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Front Brake:
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∅200mm Drum
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Rear Brakes:
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∅200mm Drum
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Front Tyre:
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3.00 x 19"
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Rear Tyre:
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3.50 x 19"
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Wet-Weight:
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185 kg / 408 lbs
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Fuel Capacity:
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14 L / 3.7 US gal
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