| Engine | Kawasaki Ninja 250R | Yamaha R3 |
|---|---|---|
| Displacement | 249 cc | 321 cc |
| Max power | 32 hp (@11 000 RPM) | 42 hp (@10 750 RPM) |
| Max torque | 16 lb ft (@9 500 RPM) | 21 lb ft (@9 000 RPM) |
| Redline | 14 000 RPM | 12 245 RPM |
| Idling speed | 1 300 RPM | 1 200 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-2 | DOHC Inline-2 |
| Compression | 11.60:1 | 11.20:1 |
| Oil capacity | 1.23 quart | 2.27 quart |
| Oil type | 10W40, Kawasaki 10W40, Shell Rotella 10W40 | 10W40, Motul 300V 10W40, Shell Rotella 10W40 |
| Spark plug type | NGK CR8E | NGK CR8E |
| Cooling | Liquid | Liquid |
| Valves | 8 | 4 |
| Bore | 62.0 mm | 68.0 mm |
| Stroke | 41.2 mm | 44.1 mm |
| Throttle bore | 32.0 mm | |
| Weight to power | 11.64 lbs/hp | 8.71 lbs/hp |
| Power to weight | 214 hp/2500lbs | 286 hp/2500lbs |
| Battery type | 12V 8Ah, YTX9-BS | 12V, 7.0 Ah, GTZ8V |
| Gearbox | Kawasaki Ninja 250R | Yamaha R3 |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | 520 | |
| Gears count | 6 | 6 |
| Primary ratio | 3.087 | 3.043 |
| Final drive | 3.071 | 3.071 |
| 1. gear | 2.6 (41 mph) | 2.5 (39 mph) |
| 2. gear | 1.789 (60 mph) | 1.824 (53 mph) |
| 3. gear | 1.409 (75 mph) | 1.348 (71 mph) |
| 4. gear | 1.16 (91 mph) | 1.087 (89 mph) |
| 5. gear | 1.0 (106 mph) | 0.92 (105 mph) |
| 6. gear | 0.893 (119 mph) | 0.8 (120 mph) |
| Chasis | Kawasaki Ninja 250R | Yamaha R3 |
|---|---|---|
| Frame type | Tubular, diamond | Steel trellis |
| Front susp. | Telescopic fork, 4.72 in travel | KYB USD, 129 mm travel |
| Rear susp. | Swingarm (uni-trak), 5.12 in travel | Swingarm, spring/shock absorber, coil spring/oil damper, 130 mm travel |