| ATK 500 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, single cylinder, DOHC, 4 valves | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 494 cm3 | - |
| Bore X Stroke | |
| 3.8x3.2 in OR 97 mm | - |
| Compression Ratio | |
| 9.5:1 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Fuel System | |
| 40mm DellOrto carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 6-speed, manual | - |
| Clutch | |
| wet multi-disc, manual | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| aluminium | Aluminium frame |
| Front Suspension | |
| telescopic fork | - |
| Rear Suspension | |
| monoshock | - |
| Front Brake | |
| single 260mm disc, 2-piston caliper | - |
| Rear Brake | |
| single 220mm disc, 1-piston caliper | - |
| dimension specs | |
| Seat Height | |
|---|---|
| 36.5 in OR 927 mm | - |
| Weight | |
| 284 lbs OR 129 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 4.2 gallons OR 15.9 L | - |
| Wheelbase | |
| 59.1 in OR 1501 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 80/100-21 | - |
| Rear | |
| 110/100-18 | - |
