Yamaha WR 125R (2011-12) vs Yamaha XJ6 (2011-12) vs Kawasaki Z-X10R Ninja (2010)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Kawasaki |
| Model: | WR 125R | XJ6 | Z-X10R Ninja |
| Years: | 2011-12 | 2011-12 | 2010 |
| Engine: | Four stroke, forward inclined single cylinder, DOHC, 4 valve | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 124.7 | 600 cc / 36.6 cu-in | 998 cc / 60.9 cu-in |
| Bore x Stroke: | 52 x 58.6 mm | 65.5 x 44.5 mm | 76 x 55 mm |
| Cooling System: | LLiquid cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 11.2:1 | 12.2:1 | 12.7:1 |
| Induction: | Fuel injection | Group injection type fuel injection | DFI with 43mm Keihin throttle bodies with oval sub-throttles, two injectors per cylinder |
| Ignition: | TCI | TCI | TCBI with digital advance and Kawasaki Ignition Management System (KIMS) |
| Starting: | Electric | Electric | Electric |
| Max Power: | 10.9 kW / 15 hp @ 9000 rpm | 78 hp / 57 kW @ 10000 rpm | 138.3 kW / 188 hp @ 12500 rpm |
| Max Torque: | 12.2 Nm / 1.24 kgf-m @ 6000 rpm | 59.7 Nm / 6.1 kgf-m @ 8500 rpm | 113 Nm / 11.5 kgf-m @ 8700 rpm |
| Clutch: | Wet, multiple coil spring | Wet Multi-plat disc | Wet multi-disc, manual |
| Transmission: | 5 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Sealed chain |
| Gear Ratio: | 1st 70/30 (2.333) 2nd 46/15 (3.067) 3rd 33/16 (2.063) 4th 30/19 (1.579) 5th 34/27 (1.259) 6th 25/24 (1.042) | 1st 37/13 (2.846) 2nd 37/19 (1.947) 3rd 28/18 (1.556) 4th 32/24 (1.333) 5th 25/21 (1.190) 6th 26/24 (1.083) | 1st 2.600 (39/15) 2nd 2.053 (39/19) 3rd 1.737 (33/19) 4th 1.550 (31/20) 5th 1.400 (28/20) 6th 1.304 (30/23) |
| Frame: | Steel double cradle | Aluminium die-cast, diamond shaped | Backbone/Twin-tube, aluminium (Pressed/die-cast composite structure) |
| Front Suspension: | Telescopic fork | 43mm Telescopic fork, 130mm wheel travel | 43mm inverted fork with DLC coating, adjustable rebound and compression damping, spring preload adjustability and top-out springs |
| Rear Suspension: | Swinging arm link suspension | Swingarm Link less type Monocross, 130mm wheel travel | Bottom-Link Uni-Trak® with top-out spring, stepless, dual-range (high/low-speed) compression damping, stepless rebound damping, fully adjustable spring preload |
| Front Brakes: | Single 248mm disc | 2x 298 mm discs | 2x 310mm discs 4 piston calipers |
| Rear Brakes: | Single 220mm disc | Single 245 mm disc | Single 220 mm disc 1 piston caliper |
| Front Tyre: | 80/90-21 | 120/70 ZR17 | 120/70 ZR17 |
| Rear Tyre: | 110/80-18 | 160/60 ZR17 | 190/55 ZR17 |
| Wheelbase: | 1430 mm / 56.3 in | 1440 mm / 56.7 in | 1415 mm / 55.7 in |
| Seat Height: | 930 mm / 36.6 in | 785 mm / 30.9 in | 880 mm / 34.6 in |
| Wet Weight: | 133 kg / 293.2 lbs | 205 kg / 452 lbs | 208 kg / 458.5 lbs |
| Fuel Capacity: | 8.5 Litres / 2..2 US gal | 17.3 Litres / 4.5 US gal | 17 Litres / 4.4 us GAL |