Technical specifications
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| Model: |
500 Model 18 and ES2 |
| Years: |
1947-54 |
|
Engine:
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Single cylinder, 4 stroke, side valve
|
|
Capacity:
|
490 cc / 29.9 cub in.
|
|
Bore x Stroke:
|
79 x 100 mm
|
|
Compression Ratio:
|
6.45:1
|
|
Cooling System:
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Air cooled
|
|
Fuel System:
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Amal Monobloc 276
|
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Ignition:
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Magneto
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Starting:
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Kick
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Exhaust:
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Armours exhaust and silencer
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Max Power:
|
15.4 kW / 21 hp
|
|
Front Suspension:
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"Roadholder" fork
|
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Rear Suspension:
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Rigid, spring loaded saddle ES2: Plunger
|
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Dry-Weight:
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169.6 kg / 374 lb
|
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Top Speed:
|
126 km/h / 78 mph
|