| BETA Evo Sport 250 2-Stroke | 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 | |
| 249.7 cm3 | - |
| Bore X Stroke | |
| 2.9x2.4 in OR 74 mm | - |
| Compression Ratio | |
| 8:9:1 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Fuel System | |
| Keihin PWK 28mm carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 6-speed, manual | - |
| Clutch | |
| wet multi-disc, manual | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| aluminum beam, single wave Hydroformed with built in fuel tank | Aluminium frame |
| Front Suspension | |
| 38mm Paioli | - |
| Rear Suspension | |
| single shock, aluminum bodied including linkage, adjustable dampening | - |
| Front Brake | |
| 185mm rotor with 4-piston caliper | - |
| Rear Brake | |
| 160mm rotor with twin-piston caliper | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 78.3 in OR 1989 mm | - |
| Overall Width | |
| 33.5 in OR 851 mm | - |
| Seat Height | |
| 26 in OR 660 mm | - |
| Ground Clearance | |
| 12.2 in OR 310 mm | - |
| Weight | |
| 149 lbs OR 68 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 2 gallons OR 7.6 L | - |
| Wheelbase | |
| 51.4 in OR 1306 mm | - |
| tyres specs | |
| Front | |
|---|---|
| Shinko knobby 21 | - |
| Rear | |
| Shinko knobby 18 | - |
