| Adler MB 250 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, two-stroke, twin cylinder | 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 | - |
| Compression Ratio | |
| 5.75:1 | - |
| Horsepower | |
| 16/5600 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Fuel System | |
| Bing carburetors | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 4-speed, manual | - |
| Clutch | |
| wet multi-disc, manual | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| steel | Aluminium frame |
| Front Suspension | |
| leading link fork | - |
| Rear Suspension | |
| adjustable plunger dual shocks | - |
| Front Brake | |
| 180mm diameter | - |
| Rear Brake | |
| 180mm diameter | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 77.5 in OR 1969 mm | - |
| Overall Width | |
| 25.6 in OR 650 mm | - |
| Weelbase | |
| 49.5 in OR 1257 mm | - |
| Weight | |
| 298 lbs OR 135 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 3.2 gallons OR 12.1 L | - |
| Wheelbase | |
| 49.5 in OR 1257 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 3.25 x 16 | - |
| Rear | |
| 3.25 x 16 | - |
