| YAMAHA XJ 750 Seca | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Yamaha lunched in 1981 one of the most technically advanced motorcycles of its time. Yamaha built the big XJ 750 Seca around a sweetheart of an engine, an enlarged version of 1980’s cruiser surprise, the 650 Maxim. The 750 version of the Seca was understr | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 749 cm3 | - |
| Bore X Stroke | |
| 2.5x2.2 in OR 64 mm | - |
| Compression Ratio | |
| 9.2:1 | - |
| Horsepower | |
| 76/9000 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Torque | |
| 49/7500 lb-ft/RPM OR 66/7500 Nm/RPM | - |
| Fuel System | |
| 4x34mm Mikuni Carburetors | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-Speed | - |
| Clutch | |
| Wet multi-plate | - |
| Final Drive | |
| Shaft | - |
| chassis specs | |
| Frame | |
|---|---|
| Double cradle | Aluminium frame |
| Front Suspension | |
| Telescopic Forks | - |
| Rear Suspension | |
| Swing Arm | - |
| Front Brake | |
| Single 269mm Disc | - |
| Rear Brake | |
| Drum | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 86.4 in OR 2195 mm | - |
| Weelbase | |
| 56.9 in OR 1445 mm | - |
| Weight | |
| 531 lbs OR 241 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 5 gallons OR 18.9 L | - |
| Wheelbase | |
| 56.9 in OR 1445 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 3.25-19 | - |
| Rear | |
| 120/90-18 | - |
