Yamaha XT 660X (2011) vs Yamaha FZ-8 (2011)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | XT 660X | FZ-8 |
| Years: | 2011 | 2011 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, forward-inclined transverse four cylinder, DOHC, 4 valve per cylinder |
| Capacity: | 659 cc/ 40.2 cu-in | 779 cc / 48.6 cu-in |
| Bore x Stroke: | 100 x 84 mm | 68.0×53.6mm |
| Compression Ratio: | 10: 1 | 12.0 : 1 |
| Cooling System: | Liquid cooled | Liquid cooled |
| Induction: | Fuel injection, 44 mm throttle body | Electronic Fuel Injection |
| Ignition: | TCI | Transistorized coil ignition |
| Starting: | Electric | Electric |
| Max Power: | 33.8 kW / 48 hp @ 6000 rpm | 78.1kW / 106.2 hp @ 10000 rpm |
| Max Torque: | 58.4 Nm / 5.7 kgf-m @ 5250 rpm | 82.0 Nm / 8.4 kg-fm @ 8000 rpm |
| Clutch: | Wet, multiple-disc coil spring | Wet,multiple-disc coil spring |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Steel tubular diamond frame with dual tank rails | Diamond frame |
| Front Suspension: | 43 mm Telescopic forks, | Telescopic fork |
| Front Wheel Travel: | 225 mm / 8.8 in | 130 mm / 5.1 in |
| Rear Suspension: | Oscillating arm standard Monocross. | Swingarm link suspension. |
| Rear Wheel Travel: | 200 mm / 7.9 in | 130 mm / 5.1 in |
| Front Brakes: | Single 320mm disc 4 piston caliper | Single 267mm disc |
| Rear Brakes: | Single 245mm disc 1 piston caliper | 2x 310mm disc |
| Front Tyre: | 120/700-17 | 120/70 ZR17 |
| Rear Tyre: | 160/60-17 | 180/55 ZR17 |
| Trail: | 94 mm / 3.7 in | 109 mm / 4.2 in |
| Dimensions: | Height 1170 mm / 461 in Length 2175 mm / 85.6 in Width: 860 mm / 33.9 in | Height 1064 mm / 41.9 in Length 2141 mm / 84.3 in Width 770 mm / 30.3 in |
| Wheelbase: | 1505 mm / 59.3 in | 1461 mm / 57.5 in |
| Ground Clearance: | 210 mm / 8.3 in | 140 mm / 5.5 in |
| Seat Height: | 875mm / 34.4 in | 815 mm / 32.1 in |
| Wet Weight: | 186 kg / 410.1 lbs | 211 kg / 465 lbs - ABS 216 kg / 476 lbs |
| Fuel Capacity: | 15 Litres / 3.9 gal | 17 liters / 3.7 gal |