Yamaha XT 660X (2009) vs Yamaha YZF 1000 R1 (2011)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | XT 660X | YZF 1000 R1 |
| Years: | 2009 | 2011 |
| 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 | 998 cc / 60.9 cu-in |
| Bore x Stroke: | 100 x 84 mm | 78 X 52.2 mm |
| Compression Ratio: | 10: 1 | 12.8:1 |
| Cooling System: | Liquid cooled | Liquid cooled |
| Induction: | Fuel injection, 44 mm throttle body | Mikuni 45mm throttle body FI |
| Lubrication: | Dry sump | Wet sump |
| Ignition: | TCI | TCI: Transistor Controlled Ignition |
| Starting: | Electric | Electric |
| Max Power: | 33.8 kW / 48 hp @ 6000 rpm | 133.9 kW / 182 hp @ 12500 rpm |
| Max Torque: | 58.4 Nm / 5.7 kgf-m @ 5250 rpm | 115.5 Nm / 11.8 kgf-m @ 10000 rpm |
| Clutch: | Wet, multiple-disc coil spring | Cable-operated multiplate wet slipper clutch. |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | "O" ring chain |
| Frame: | Steel tubular diamond frame with dual tank rails | Deltabox V aluminium |
| Front Suspension: | 43 mm Telescopic forks, | 43mm inverted telescopic fork w/adjustable preload, compression damping, rebound damping; |
| Front Wheel Travel: | 225 mm / 8.8 in | 120 mm / 4.7 in |
| Rear Suspension: | Oscillating arm standard Monocross. | Single shock w/piggyback reservoir; adjustable for hi-/lo-speed compression damping, rebound damping, spring preload, |
| Rear Wheel Travel: | 200 mm / 7.9 in | 120 mm / 4.7 in |
| Front Brakes: | Single 320mm disc 4 piston caliper | 2x 310mm discs 6 piston calipers |
| Rear Brakes: | Single 245mm disc 1 piston caliper | Single 220mm disc 1 piston caliper |
| Front Tyre: | 120/700-17 | 120/70 ZR17 |
| Rear Tyre: | 160/60-17 | 190/55 ZR17 |
| Rake: | 26.0° | 24° |
| Trail: | 94 mm / 3.7 in | 102 mm / 4.0 in |
| Dimensions: | Height 1170 mm / 461 in Length 2175 mm / 85.6 in Width: 860 mm / 33.9 in | Length 2070 mm / 81.5 in Width 715 mm / 28.1 in Height 1130 mm / 44.5 in |
| Wheelbase: | 1505 mm / 59.3 in | 1415 mm / 55.7 in |
| Ground Clearance: | 210 mm / 8.3 in | 135mm / 5.3 in |
| Seat Height: | 875mm / 34.4 in | 835 mm / 32.8 in |
| Dry Weight: | 173 kg / 318.4 lbs | 177 kg / 389.4 lb |
| Wet Weight: | 186 kg / 410.1 lbs | 206 kg / 454 lb |
| Fuel Capacity: | 15 Litres / 3.9 gal | 18 Litres / 4.8 gal |