If straight-line speed is your priority, the 450SR (SS) takes the lead. With 5 HP more than the Ninja 400, it offers a more spirited ride that will be noticeable on highway overtakes or track days. Both bikes share a similar footprint on the scale, with only a negligible 0kg difference between them, so handling characteristics will depend more on center-of-gravity than raw weight. Bottom Line: While both are capable, the 450sr offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | 450SR (SS) | Ninja 400 |
|---|---|---|
| Displacement | 450 | 399 |
| Power | 49.6 | 45 |
| Cylinders | 2 | 2 |
| Weight | 168 | 168 |
| Seat height | 795 | 785 |