| BETA Evo 250 4-Stroke | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| single cylinder, 4-stroke, 4-valve, liquid-cooled | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 249.6 cm3 | - |
| Bore X Stroke | |
| 3.0x2.1 in OR 76 mm | - |
| Compression Ratio | |
| 11.5:1 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Fuel System | |
| Mikuni CV carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-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 | |
| adjustable single shock, aluminum bodied, with nitrogen valve including linkage | - |
| 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 | |
| 155.5 lbs OR 71 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 0.75 gallons OR 2.8 L | - |
| Wheelbase | |
| 51.4 in OR 1306 mm | - |
| tyres specs | |
| Front | |
|---|---|
| Michelin Trial 21 | - |
| Rear | |
| Michelin Trial 18 | - |
