| Engine | Kawasaki ZX-25R | Yamaha WR250R |
|---|---|---|
| Displacement | 249 cc | 250 cc |
| Max power | 45 hp (@12 000 RPM) | 30 hp (@10 000 RPM) |
| Max torque | 33 Nm (@9 000 RPM) | 23 Nm (@8 000 RPM) |
| Redline | 17 000 RPM | 11 500 RPM |
| Idling speed | 1 200 RPM | 1 200 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-4 | DOHC Single |
| Compression | 11.80:1 | |
| Oil capacity | 1.40 litre | |
| Oil type | 10W30, 10W40, YAMALUBE 10W40 | |
| Spark plug type | NGK CR9EK | |
| Cooling | Liquid | Liquid |
| Valves | 4 | |
| Bore | 77.0 mm | |
| Stroke | 53.6 mm | |
| Battery type | YTZ7S, 12V 6Ah |
| Gearbox | Kawasaki ZX-25R | Yamaha WR250R |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | ||
| Gears count | 0 | 6 |
| Primary ratio | 3.12 | |
| Final drive | 3.231 | |
| 1. gear | 2.642 (53 km/h) | |
| 2. gear | 1.813 (77 km/h) | |
| 3. gear | 1.318 (106 km/h) | |
| 4. gear | 1.04 (134 km/h) | |
| 5. gear | 0.888 (157 km/h) | |
| 6. gear | 0.766 (182 km/h) |
| Chasis | Kawasaki ZX-25R | Yamaha WR250R |
|---|---|---|
| Frame type | Semi double cradle | |
| Front susp. | USD, 270.00 mm travel | |
| Rear susp. | Swingarm monoshock, 265.00 mm travel |