Technical specifications
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| Model: |
Silver Arrow |
| Years: |
1929-33(specificationsfor1930m |
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Engine:
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V-twin cylinder
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Capacity:
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397 cc / 24 cub in.
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Bore x Stroke:
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54 x 86 mm
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Cooling System:
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Air cooled
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Compression Ratio:
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5.6:1
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Lubrication:
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Dry sump with fabric oil filter
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Oil Capacity:
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2.3 L / 4.9 US pints
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Exhaust:
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Single, chrome
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Fuel System:
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Amal 4/14
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Ignition:
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Lucas magneto, KLV-0
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Starting:
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Kick
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Transmission:
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3-Speed, Sturmey Archer gearbox (from 1932: 4-speed)
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Final Drive:
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Chain
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Gear Ratios:
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1st 16.8 / 2nd 9.4 / 3rd 6.1:1
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Maximum Power:
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11.8 kW / 16 hp @ 5000 rpm
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Frame:
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Brazed lug tubular construction incorporating cantilever rear suspension
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Front Suspension:
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Matchless centre spring girders, finger adjustment
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Rear Suspension:
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Cantilever with two springs and friction dampers under saddle
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Front Brakes:
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203 mm / 8 in. drum, interconnected
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Rear Brakes:
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203 mm / 8 in. drum, interconnected
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Wheels:
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Steel, wire spokes
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Front Tyre:
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3.25 x 19 in.
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Rear Tyre:
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3.25 x 19 in.
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Dimensions:
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Length: 2134 mm / 84 in.
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Wheelbase:
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1422 mm / 56 in.
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Ground Clearance:
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152 mm / 6 in.
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Saddle Height:
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699 mm / 27.5 in.
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Wet Weight:
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140 kg / 308 lbs
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Fuel Capacity:
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11.4 L / 3.0 US gal
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Average Consumption:
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2.8 L/100 km / 35 km/l / 84 US mpg
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Top Speed:
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105 km/h / 65 mph
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