Yamaha XT 660X (2006) vs Yamaha YZF 600 R6 50th Anniversary (2006)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | XT 660X | YZF 600 R6 50th Anniversary |
| Years: | 2006 | 2006 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 659 cc/ 40.2 cu-in | 599 cc / 36.5 cu-in |
| Bore x Stroke: | 100 x 84 mm | 67 x 42.5 mm |
| Compression Ratio: | 10: 1 | 12.4;1 |
| Cooling System: | Liquid cooled | Liquid cooled |
| Induction: | Fuel injection, 44 mm throttle body | Fuel Injection 38mm throttle bodies |
| Lubrication: | Dry sump | Wet sump |
| Ignition: | TCI | TCI |
| Starting: | Electric | Electric |
| Max Power: | 33.8 kW / 48 hp @ 6000 rpm | 124.6 hp / 91.7 kW @14500 rpm |
| Max Torque: | 58.4 Nm / 5.7 kgf-m @ 5250 rpm | 69.1 Nm / 7.05 kg-m @ 11000 rp @ 1100 rpm |
| Clutch: | Wet, multiple-disc coil spring | Wet multiple-disc coil spring |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | O-ring Chain |
| Frame: | Steel tubular diamond frame with dual tank rails | Deltabox aluminium frame with revised rigidity balance |
| Front Suspension: | 43 mm Telescopic forks, | 41mm upside down forks with 2-way compression damping adjustable |
| Front Wheel Travel: | 225 mm / 8.8 in | 119.4 mm / 4.7 in |
| Rear Suspension: | Oscillating arm standard Monocross. | Fully adjustable rear shock absorber with 2-way compression damping |
| Rear Wheel Travel: | 200 mm / 7.9 in | 119.4 mm / 4.7 in |
| Front Brakes: | Single 320mm disc 4 piston caliper | 2x 320mm discs |
| Rear Brakes: | Single 245mm disc 1 piston caliper | Single 220mm disc |
| Front Tyre: | 120/700-17 | 120/70 ZR17 |
| Rear Tyre: | 160/60-17 | 180/55 ZR17 |
| Dimensions: | Height 1170 mm / 461 in Length 2175 mm / 85.6 in Width: 860 mm / 33.9 in | Length 2040 mm / 80.3 in Width 705 mm / 27.8 in Height 1100 mm / 43.3 in |
| Wheelbase: | 1505 mm / 59.3 in | 1380 mm / 53.4 in |
| Ground Clearance: | 210 mm / 8.3 in | 130 mm / 5.1 in |
| Seat Height: | 875mm / 34.4 in | 850 mm / 33.5 in |
| Dry Weight: | 173 kg / 318.4 lbs | 162 kg / 357 lbs (single seat 161 kg) |
| Fuel Capacity: | 15 Litres / 3.9 gal | 17.5 Litres / 4.6 gal |