| YAMAHA YZ250X | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Liquid-cooled 2-stroke, reed-valve inducted | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 249 cm3 | - |
| Bore X Stroke | |
| 2.6x2.8 in OR 66 mm | - |
| Compression Ratio | |
| 7.9:1 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Fuel System | |
| Injection. Yamaha Fuel Injection (YFI), Keihin 44mm | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-Speed constant mesh | - |
| Clutch | |
| Wet multiplate | - |
| Final Drive | |
| Chain | - |
| chassis specs | |
| Frame | |
|---|---|
| Bilateral aluminium beam | Aluminium frame |
| Front Suspension | |
| KYB Speed-Sensitive System inverted fork, fully adjustable, 11.8-in travel | - |
| Rear Suspension | |
| KYB Monoshock, fully adjustable, 12.4-in travel | - |
| Front Brake | |
| Single hydraulic disc 250mm | - |
| Rear Brake | |
| Single hydraulic disc 245mm | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 86 in OR 2184 mm | - |
| Overall Width | |
| 32.5 in OR 826 mm | - |
| Seat Height | |
| 38.2 in OR 970 mm | - |
| Ground Clearance | |
| 14.2 in OR 361 mm | - |
| Weight | |
| 229 lbs OR 104 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 1.6 gallons OR 6.1 L | - |
| Wheelbase | |
| 58.5 in OR 1486 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 90/90-21 | - |
| Rear | |
| 110/100-18 | - |
