Yamaha YZF-R 125 WGP 50th Anniversary (2012) vs Kawasaki GPz 1100-B2 / Z 1100GP (1982)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki |
| Model: | YZF-R 125 WGP 50th Anniversary | GPz 1100-B2 / Z 1100GP |
| Years: | 2012 | 1982 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. |
| Capacity: | 124 cc / 7.6 cu-in | 1089 cc / 66.4 cu-in |
| Bore x Stroke: | 52 × 58.6 mm | 72.5 x 66 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 10.4:1 | 8.9:1 |
| Induction: | Fuel Injection | Bosch electronic fuel injection |
| Ignition: | TCI | Electronic, CDI |
| Starting: | Electric | Electric |
| Max Power: | 12.6 kW / 17 hp @ 8500 rpm | 108 hp / 81 kW @ 8000 rpm |
| Max Torque: | 15 Nm / 1.25 kg-m @ 7500 rpm | 95.1 Nm / 70.2 lb-ft @ 7000 rpm |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Delta box | Steel cradle design |
| Front Suspension: | Telescopic forks | Telescopic coil/air spring forks |
| Front Wheel Travel: | 130 mm / 5.1 in | 138 mm / 5.4 in |
| Rear Suspension: | Swinging arm | Swinging arm with 2 dampers adjustable for preload and damping |
| Rear Wheel Travel: | 125 mm / 4.9 in | 99 mm / 3.9 in |
| Front Brakes: | Single 292mm disc | 2x 270mm discs 1 piston calipers |
| Rear Brakes: | Single 230mm disc | Single 270mm disc 1 piston caliper |
| Front Tyre: | 90/80 -17 | 3.25-18 |
| Rear Tyre: | 130/70 -17 | 4.25-18 |
| Wheelbase: | 1355 mm / 53.3 inc | 1540 mm / 60.6 in |
| Seat Height: | 810 mm / 31.8 in | 780 mm / 30.8 in |
| Dry Weight: | 127 kg / 279 lbs | 237.3 kg / 521 lbs |
| Wet Weight: | 136 kg / 299.8 lbs | 255 kg / 562 lbs |
| Fuel Capacity: | 13.8 Litres / 3.6 gal | 21.4 Litres / 5.5 US gal |