Kawasaki Z 650 (2022) vs Aprilia SX 125 (2011)
Comparison technical specifications
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| Make: | Kawasaki | Aprilia |
| Model: | Z 650 | SX 125 |
| Years: | 2022 | 2011 |
| Engine: | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder | Four stroke, Single cylinder, DOHC, 4 valve |
| Capacity: | 649 cc / 39.65 cu-in | 124.2 cc / 7.6 cu-in |
| Bore x Stroke: | 83 x 60 mm | 58 x 47 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 10.8:1 | 12.6:1 |
| Lubrication: | Wet sump | Wet sump |
| Induction: | DFI® with Keihin 36mm Keihin throttle bodies | Fuel injection. ECU Electronics Magneti Marelli MIUG4 32 mm |
| Ignition: | TCBI with electronic advance | Electronic CDI |
| Starting: | Electric | Electric |
| Max Power: | 50.2 kW / 67.3 hp | 14.8 hp / 11 kW @ 10000 rpm |
| Max Torque: | 65.7 Nm / 48.5 lb-ft @ 6500 rpm | 11.2 Nm / 8.3 lb-ft @ 8000 rpm |
| Clutch: | Wet multi-disc, manual | Multi-plate in oil bath |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Sealed chain | Chain, drive ratio: 13/62 |
| Frame: | Trellis, high-tensile steel | Twin-tube steel frame |
| Front Suspension: | 41 mm hydraulic telescopic fork | 41mm Stanchions upside down fork |
| Front Wheel Travel: | 125 mm / 4.9 in | 240 mm / 9.4 in |
| Rear Suspension: | Horizontal Back-link with adjustable preload swingarm | Steel swingarm, monoshock with progressive link system |
| Rear Wheel Travel: | 130 mm / 5.1 in | 210 mm / 8.3 in |
| Front Brakes: | 2x 300mm petal-style discs, 2 piston calipers | Single 300mm disc floating caliper |
| Rear Brakes: | Single 220mm petal-style disc | Single 220 mm disc floating caliper |
| Front Tyre: | 120/70 ZR17 | 100/80-17 |
| Rear Tyre: | 160/60 ZR7 | 130/70-17 |
| Dimensions: | Length 2065 mm / 81.3 in Width 764.5 mm / 30.1 in Height 1064 mm / 41.9 in | Length: 2075 mm / 81.6 in Width: 820 mm / 32.2 in Height: 1140 mm / 44.8 in |
| Wheelbase: | 1410 mm / 55.5 in | 1425 mm / 56.1 in |
| Seat Height: | 790 mm / 31.1 in | 880 mm / 34.6 in |
| Wet Weight: | 187 kg / 412.3 lbs | 134 kg / 295.4 lbs |
| Fuel Capacity: | 15 Litres / 4.0 US gal | 7 Litres / 1.84 US gal |