If straight-line speed is your priority, the ZX-4R takes the lead. With 31 HP more than the Ninja ZX-25R SE, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the Ninja ZX-25R SE has a clear advantage. Weighing in 5kg less than the ZX-4R, it will feel significantly easier to handle in low-speed traffic, parking maneuvers, and twisty corners. Riders with a shorter inseam should lean towards the Ninja ZX-25R SE. Its seat height is 15mm lower than the ZX-4R, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the zx4r offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | Ninja ZX-25R SE | ZX-4R |
|---|---|---|
| Displacement | 249 | 399 |
| Power | 46 | 77 |
| Cylinders | 4 | 4 |
| Weight | 184 | 189 |
| Seat height | 785 | 800 |