| YAMAHA XJ 550 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Air Cooled, Four Stroke, Transverse Four Cylinder, DOHC, 2 Valves Per Cylinder | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 528 cm3 | - |
| Bore X Stroke | |
| 2.2x2.1 in OR 56 mm | - |
| Compression Ratio | |
| 9.5:1 | - |
| Horsepower | |
| 50/9000 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Torque | |
| 31/7500 lb-ft/RPM OR 42/7500 Nm/RPM | - |
| Fuel System | |
| 4x28mm Mikuni Carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 6-Speed | - |
| Clutch | |
| Wet multi-plate | - |
| Final Drive | |
| Chain | - |
| chassis specs | |
| Frame | |
|---|---|
| Steel | Aluminium frame |
| Front Suspension | |
| Telescopic Coil Spring Forks | - |
| Rear Suspension | |
| Swinging Arm With Dual Dampers Adjustable For Preload | - |
| Front Brake | |
| Double discs 267 mm | - |
| Rear Brake | |
| Drum 182 mm | - |
| dimension specs | |
| Weight | |
|---|---|
| 452 lbs OR 205 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 4 gallons OR 15.1 L | - |
| tyres specs | |
| Front | |
|---|---|
| 3.25-19 | - |
| Rear | |
| 110/ 90-16 | - |
