Attribute | ![]() AJS Model 20 500 1954 × | ![]() AJS Model 20 500 1953 × |
---|---|---|
General | ||
Production from (year) | 1954 | 1953 |
Make | AJS | AJS |
Model | AJS Model 20 500 | AJS Model 20 500 |
Category | Allround | Allround |
Engine and transmission | ||
Engine type | Twin, four-stroke | Twin, four-stroke |
Fuel system | Carburettor | Carburettor |
Displacement (cm³) | 498 | 498 |
Power (kw) | 14.6 | 14.6 |
Cooling system | Air | Air |
Transmission type,final drive | Chain | Chain |
Bore (mm) | 66 | 66 |
Stroke (mm) | 72.8 | 72.8 |
Gearbox | 4-speed | 4-speed |
Ignition | Magneto | Magneto |
Clutch | Wet multiplate | Wet multiplate |
Compression | 7.0:1 | 7.0:1 |
Chassis | ||
Front suspension | Telescopic | Telescopic |
Rear suspension | Twin shock | Twin shock |
Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
Frame type | Single cradle | Single cradle |
Front tyre | 3.25-19 | 3.25-19 |
Rear tyre | 3.25-19 | 3.25-19 |
Seat | Dual | Dual |
Wheels | Spoked | Spoked |
Other | ||
Starter | Kick | Kick |
Dimensions | ||
Dry weight (kg) | 178 | 178 |
Power/weight ratio | 0.082 | 0.082 |
Overall height (mm) | 1,050 | 1,050 |
Overall length (mm) | 2,190 | 2,190 |
Overall width (mm) | 710 | 710 |
Performance | ||
Top speed (km/h) | 137 | 137 |
Fuel capacity (l) | 13.5 | 13.5 |