| BETA 250 RR | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Single cylinder, 2-stroke, liquid cooled | 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 | |
| 12.8:1 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Fuel System | |
| Carburetor Keihin PXK 36mm | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 6-Speed | - |
| Clutch | |
| Wet Multi-disc | - |
| Final Drive | |
| Chain | - |
| chassis specs | |
| Frame | |
|---|---|
| Molybdenum steel/double cradle w/quick air filter access | Aluminium frame |
| Front Suspension | |
| 48 mm Sachs USD fork, adjustable compression and rebound, TFX technology | - |
| Rear Suspension | |
| Aluminum Body Sachs shock w/adjustable rebound and hi/low speed compression | - |
| Front Brake | |
| 260mm floating rotor | - |
| Rear Brake | |
| 240mm floating rotor | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 85.7 in OR 2177 mm | - |
| Overall Width | |
| 31.8 in OR 808 mm | - |
| Seat Height | |
| 36.6 in OR 930 mm | - |
| Ground Clearance | |
| 12.6 in OR 320 mm | - |
| Weight | |
| 245 lbs OR 111 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 2.5 gallons OR 9.5 L | - |
| Wheelbase | |
| 58.3 in OR 1481 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 90/90 - 21 | - |
| Rear | |
| 140/80 -18 | - |
