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|---|
| Model | AJS Model 20 500 |
| Year | 1953 |
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|---|
| Displacement | 498.0 ccm (30.39 cubic inches) |
| Engine type | Twin, four-stroke |
| Power | 20.0 HP (14.6 kW) @ 6800 RPM |
| Top speed | 137.0 km/h (85.1 mph) |
| Compression | 7.0:1 |
| Bore x stroke | 66.0 x 72.8 mm (2.6 x 2.9 inches) |
| Fuel system | Carburettor |
| Ignition | Magneto |
| Cooling system | Air |
| Gearbox | 4-speed |
| Transmission type | Chain (final drive) |
| Clutch | Wet multiplate |
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|---|
| Frame type | Single cradle |
| Front suspension | Telescopic |
| Rear suspension | Twin shock |
| Front tire | 3.25-19 |
| Rear tire | 3.25-19 |
| Front brakes | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) |
| Wheels | Spoked |
| Seat | Dual |
| Dry weight | 178.0 kg (392.4 pounds) |
| Power/weight ratio | 0.1124 HP/kg |
| Overall height | 1050 mm (41.3 inches) |
| Overall length | 2190 mm (86.2 inches) |
| Overall width | 710 mm (28.0 inches) |
| Fuel capacity | 13.50 litres (3.57 US gallons) |
