Yamaha RZ 125S (1983-84) vs Kawasaki Z-X10R Ninja (2009)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki |
| Model: | RZ 125S | Z-X10R Ninja |
| Years: | 1983-84 | 2009 |
| Engine: | Two stroke, single cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 123 cc / 7.5 cu-in | 998 cc / 60.9 cu-in |
| Bore x Stroke: | 56 х 50 mm | 76 x 55 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 6.4:1 | 12.7:1 |
| Lubrication: | Autolube | Forced lubrication, wet sump with oil cooler |
| Induction: | 24mm Mikuni carburetors | DFI with 43mm Keihin throttle bodies with oval sub-throttles, two injectors per cylinder |
| Ignition: | Hitachi CDI | TCBI with digital advance and Kawasaki Ignition Management System (KIMS) |
| Starting: | Kick | Electric |
| Max Power: | 20 hp / 15.5 kW @ 9500 rpm | 138.3 kW / 188 hp @ 12500 rpm |
| Max Torque: | 1.6 kgf-m / 16 Nm @ 9250 rpm | 113 Nm / 11.5 kgf-m @ 8700 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Sealed chain |
| Front Suspension: | 32mm Telescopic forks | 43mm inverted fork with DLC coating, adjustable rebound and compression damping, spring preload adjustability and top-out springs |
| Rear Suspension: | Monocross linkage 6-way preload adjustment | 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 245mm disc | 2x 310mm discs 4 piston calipers |
| Rear Brakes: | 130mm Drum | Single 220 mm disc 1 piston caliper |
| Front Tyre: | 2.75-18-4PR | 120/70 ZR17 |
| Rear Tyre: | 3.00-18-6PR | 190/55 ZR17 |
| Dimensions: | Length 1990 mm / 78.3 in Width 735 mm / 28.9 in Height 1190 mm / 46.8 in | Length 2110 mm / 83 in Width 710 mm / 27.9 in Height 1135 mm / 44.6 in |
| Wheelbase: | 1295 mm / 50.9 in | 1415 mm / 55.7 in |
| Seat Height: | 775 mm / 30.5 in | 880 mm / 34.6 in |
| Ground Clearance: | 185 mm / 7.2 in | 125 mm / 4.9 in |
| Dry Weight: | 98 kg / 216 lbs | 179 kg / 394.6 lbs |
| Fuel Capacity: | 13 Litres / 3.4 US gal | 17 Litres / 4.4 us GAL |
| Standing ¼ Mile: | 16.7 sec | 10.5 sec |
| Top Speed: | 81 mph / 130.3 km/h | 292.0 km/h / 181.4 mph |