| AJS Model 18 500 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, single cylinder, OHV, 2 valves | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 498 cm3 | - |
| Bore X Stroke | |
| 3.2x3.7 in OR 81 mm | - |
| Compression Ratio | |
| 6.9:1 | - |
| Horsepower | |
| 28/5600 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Fuel System | |
| carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 4-speed, manual | - |
| Clutch | |
| wet multi-disc, manual | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| steel | Aluminium frame |
| Front Suspension | |
| telescopic fork | - |
| Rear Suspension | |
| dual shocks | - |
| Front Brake | |
| drum | - |
| Rear Brake | |
| drum | - |
| dimension specs | |
| Seat Height | |
|---|---|
| 29.9 in OR 759 mm | - |
| Weight | |
| 353 lbs OR 160 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 3.4 gallons OR 12.9 L | - |
| Wheelbase | |
| 55.1 in OR 1400 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 3.25 -19 | - |
| Rear | |
| 34.25 -19 | - |
