| Engine | Aprilia RS660 | BMW F900R |
|---|---|---|
| Engine code | A24A09A | |
| Displacement | 660 cc | 895 cc |
| Max power | 100 hp (@10 500 RPM) | 103 hp (@8 500 RPM) |
| Max torque | 49 lb ft (@8 500 RPM) | 4794 lb ft (@92 RPM) |
| Redline | 12 000 RPM | 9 000 RPM |
| Idling speed | 1 200 RPM | 1 250 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-2 | DOHC Inline-2 |
| Compression | 13.50:1 | 13.10:1 |
| Oil capacity | 2.84 quart | |
| Oil type | SAE 5W40 JASO MA2 | |
| Spark plug type | NGK LMAR8J-9E | |
| Cooling | Liquid | Liquid |
| Valves | 8 | 8 |
| Bore | 81.0 mm | 86.0 mm |
| Stroke | 63.0 mm | 77.0 mm |
| Throttle bore | 48.0 mm | 48.0 mm |
| Weight to power | 4.03 lbs/hp | 4.52 lbs/hp |
| Power to weight | 619 hp/2500lbs | 553 hp/2500lbs |
| Battery type | 12V !2Ah CR2032 |
| Gearbox | Aprilia RS660 | BMW F900R |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Slipper |
| Drive | Chain | Chain |
| Chain type | ||
| Gears count | 0 | 6 |
| Primary ratio | 1.821 | |
| Final drive | 2.52 | 2.588 |
| 1. gear | 1.283 (110 mph) | |
| 2. gear | 2.067 (68 mph) | |
| 3. gear | 1.6 (88 mph) | |
| 4. gear | 1.308 (107 mph) | |
| 5. gear | 1.103 (128 mph) | |
| 6. gear | 0.968 (145 mph) |
| Chasis | Aprilia RS660 | BMW F900R |
|---|---|---|
| Frame type | Double beam aluminum | Steel monocoque bridge-type |
| Front susp. | 41mm KYB USD, 4.72 in travel | Telescopic fork, 5.31 in travel |
| Rear susp. | Monoshock, 5.12 in travel | Monoshock, 5.59 in travel |