| YAMAHA SR 500 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Air Cooled, Four Stroke, Single Cylinder, SOHC, 2 Valves Per Cylinder | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 499 cm3 | - |
| Bore X Stroke | |
| 3.4x3.3 in OR 86 mm | - |
| Compression Ratio | |
| 8.3:1 | - |
| Horsepower | |
| 32/6500 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Torque | |
| 27/5500 lb-ft/RPM OR 37/5500 Nm/RPM | - |
| Fuel System | |
| 34 mm Mikuni VM34SS Carburetors | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-Speed | - |
| Clutch | |
| Wet multi-plate | - |
| Final Drive | |
| Chain | - |
| chassis specs | |
| Frame | |
|---|---|
| Half Duplex cradle | Aluminium frame |
| Front Suspension | |
| Telescopic Forks | - |
| Rear Suspension | |
| Adjustable Spring Preload | - |
| Front Brake | |
| Single disc 200 mm | - |
| Rear Brake | |
| Drum | - |
| dimension specs | |
| Overall Width | |
|---|---|
| 33.3 in OR 846 mm | - |
| Seat Height | |
| 31.9 in OR 810 mm | - |
| Weight | |
| 381 lbs OR 173 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 3.17 gallons OR 12.0 L | - |
| Wheelbase | |
| 55.3 in OR 1405 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 3.50-19 | - |
| Rear | |
| 4.00-18 | - |
