| APRILIA ST 125 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| liquid-cooled, two-stroke, single cylinder | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 124 cm3 | - |
| Bore X Stroke | |
| 2.1x2.2 in OR 53 mm | - |
| Compression Ratio | |
| 14.5:1 | - |
| Horsepower | |
| 18/8250 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Torque | |
| 10/8250 lb-ft/RPM OR 14/8250 Nm/RPM | - |
| Fuel System | |
| 28mm DellOrto PHBH AS carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 6-speed, manual | - |
| Clutch | |
| wet multi-disc, manual | - |
| Primary Drive | |
| gears | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| steel | Aluminium frame |
| Front Suspension | |
| 32mm Marzocchi telescopic fork | - |
| Rear Suspension | |
| monoshock | - |
| Front Brake | |
| single 230mm disc | - |
| Rear Brake | |
| 160mm drum | - |
| dimension specs | |
| Seat Height | |
|---|---|
| 31.5 in OR 800 mm | - |
| Weight | |
| 229 lbs OR 104 kg | 351 lbs OR 159 kg |
| tyres specs | |
| Front | |
|---|---|
| 2.75-18 | - |
| Rear | |
| 3.00-18 | - |
