| YAMAHA YD-1 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Single Cylinder, 2 Stroke | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 247 cm3 | - |
| Bore X Stroke | |
| 2.1x2.1 in OR 53 mm | - |
| Horsepower | |
| 15/6000 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Torque | |
| 14/4000 lb-ft/RPM OR 19/4000 Nm/RPM | - |
| Fuel System | |
| Carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 4-Speed | - |
| Clutch | |
| Wet multi-discs | - |
| Final Drive | |
| Chain | - |
| chassis specs | |
| Frame | |
|---|---|
| - | Aluminium frame |
| Front Suspension | |
| Telescopic forks | - |
| Rear Suspension | |
| Swing arm | - |
| Front Brake | |
| Drum | - |
| Rear Brake | |
| Drum | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 76.2 in OR 1935 mm | - |
| Overall Width | |
| 27.8 in OR 706 mm | - |
| Weight | |
| 309 lbs OR 140 kg | 351 lbs OR 159 kg |
| tyres specs | |
| Front | |
|---|---|
| 2.50-16 | - |
| Rear | |
| 2.50-16 | - |
