| Engine | Aprilia RS660 | KTM 390 Duke |
|---|---|---|
| Displacement | 660 cc | 373 cc |
| Max power | 100 hp (@10 500 RPM) | 43 hp (@8 600 RPM) |
| Max torque | 67 Nm (@8 500 RPM) | 34 Nm (@6 800 RPM) |
| Redline | 12 000 RPM | 10 500 RPM |
| Idling speed | 1 200 RPM | 1 650 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-2 | DOHC Single |
| Compression | 13.50:1 | 12.90:1 |
| Oil type | 15W50 | |
| Spark plug type | BOSCH VR 5 NE, BOSCH VR 5 NEU | |
| Cooling | Liquid | Liquid |
| Valves | 8 | 4 |
| Bore | 81.0 mm | 89.0 mm |
| Stroke | 63.0 mm | 60.0 mm |
| Throttle bore | 48.0 mm | |
| Weight to power | 1.83 kg/hp | 3.65 kg/hp |
| Power to weight | 546 hp/Ton | 273 hp/Ton |
| Gearbox | Aprilia RS660 | KTM 390 Duke |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | X-Ring 5/8 x 1/4" | |
| Gears count | 0 | 6 |
| Primary ratio | 2.667 | |
| Final drive | 2.52 | 3.0 |
| 1. gear | 2.667 (57 km/h) | |
| 2. gear | 1.857 (81 km/h) | |
| 3. gear | 1.421 (107 km/h) | |
| 4. gear | 1.143 (132 km/h) | |
| 5. gear | 0.956 (158 km/h) | |
| 6. gear | 0.84 (180 km/h) |
| Chasis | Aprilia RS660 | KTM 390 Duke |
|---|---|---|
| Frame type | Double beam aluminum | Steel trellis frame |
| Front susp. | 41mm KYB USD, 120.00 mm travel | USD 43mm, 150.00 mm travel |
| Rear susp. | Monoshock, 130.00 mm travel | Monoshock, 150.00 mm travel |