Kawasaki ER-6n (2011) vs Aprilia SX 125 (2008-09)
Comparison technical specifications
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| Make: | Kawasaki | Aprilia |
| Model: | ER-6n | SX 125 |
| Years: | 2011 | 2008-09 |
| Engine: | Four stroke, parallel twin, DOHC, 4 valves per cylinder. | Two stroke, single cylinder Aluminium cylinder with Nikasil coated liner. Read valve intake. Separate mixing. Homologated to Euro 3 standard. |
| Capacity: | 649 cc / 39.6 cu-in | 125 cc / 7.6 cu-in |
| Bore x Stroke: | 83 X 60 mm | 54 x 54.5 mm |
| Cooling System: | Liquid cooled, | Liquid cooled |
| Compression Ratio: | 11.3;1 | 12.5:1 |
| Induction: | 2x 38mm Electronic Fuel Injection Keihin | DellOrto VHST 28 |
| Ignition: | Digital TCBI | Electronic CDI |
| Starting: | Electric | Kick |
| Max Power: | 53 kW / 72.1 hp @ 8500 rpm | 16.4 kW / 22 hp |
| Max Torque: | 66 Nm / 6.7 m-kg @ 7000 rpm | 16.0 Nm / 1.6 kgf-m / 11.8 ft-lb |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Diamond, high-tensile steel | High strength steel frame with double trellis beam and double cradle. Separate seat frame. |
| Front Suspension: | 41 mm telescopic fork, | Upside down telescopic fork, Ø40 mm |
| Front Wheel Travel: | 120 mm / 4.7 in | 260 mm / 10.2 in |
| Rear Suspension: | Offset laydown single-shock with adjustable preload, | Steel swingarm. Hydraulic monoshock with piggy back cylinder |
| Rear Wheel Travel: | 130 mm / 5.1 in | 270 mm / 10.6 in |
| Front Brakes: | 2x 300mm discs 2 piston calipers | Single 260mm disc, sliding 2 piston caliper, Brembo |
| Rear Brakes: | Single 220mm disc 1 piston caliper | Single 220mm disc, sliding 1 piston caliper |
| Front Tyre: | 120/70ZR17 | 110/70 17 |
| Rear Tyre: | 160/60ZR17 | 150/60 17 |
| Seat Height: | 785 mm / 30.9 in | 870 mm / 34.3 in |
| Dry Weight: | 174 kg / 383.6 lbs | 115 kg / 254 lbs |
| Fuel Capacity: | 15.5 Litres / 4.1 US gal | 10 liters / 2.6 US gal |
| Top Speed: | 199.7 km/h | 132 km/h / 82 mph |