Technical specifications
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| Model: |
MB 250S |
| Years: |
1955 |
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Engine:
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2 cylinder, 2 stroke, flat-crowned pistons
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Capacity:
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247 cc / 15.1 cub in.
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Bore x Stroke:
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54 x 54 mm
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Cooling:
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Air cooled
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Lubrication:
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Petrol oil mix 25:1
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Clutch:
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Multi disc in oil bath
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Starting:
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Kick start
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Battery:
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6V, 6Ah
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Ignition:
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6 V 45/60 W ignition set, battery and coil
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Carburetor:
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Single Bing carburetor
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Exhaust System:
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Twin, steel, chrome
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Max Power:
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13.1 kW / 18 hp @ 5590 rpm
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Compression Ratio:
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1: 6.6
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Transmission:
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4 Speed gearbox housed in engine block, foot gearchange
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Final Drive:
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Chain, fully enclosed
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Frame:
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Double tubular frame with sidecar adapter.
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Front suspension:
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Twin swinging leading link forks with shock absorber and steering damper
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Rear suspension:
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Plunger shock absorbers, adjustable for load and road conditions
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Tyres (front and back):
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3.25 x 16 in.
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Brakes (front and back):
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Drums, 180 mm diameter
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Dimensions:
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Length 1968 mm / 77.5 in. Width 650 mm / 25.6 in. Height 935 mm / 36.8 in.
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Wheelbase:
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1257 mm / 49.5 in.
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Dry Weight:
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135 kg / 298 lbs
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Wet Weight:
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145 kg / 320 lbs
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Fuel Capacity:
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12 L / 3.2 US gal
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Reserve:
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3.8 L / 1 US gal
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Average Consumption:
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3.6 l/100 km / 27.8 km/l / 65.3 US mpg
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Top Speed:
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125 km/h / 77 mph
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