If straight-line speed is your priority, the YZF-R9 takes the lead. With 49 HP more than the Ninja 650, 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 2kg difference between them, so handling characteristics will depend more on center-of-gravity than raw weight. Riders with a shorter inseam should lean towards the Ninja 650. Its seat height is 40mm lower than the YZF-R9, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the r9 offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | Ninja 650 | YZF-R9 |
|---|---|---|
| Displacement | 649 | 890 |
| Power | 68 | 117 |
| Cylinders | 2 | 3 |
| Weight | 193 | 195 |
| Seat height | 790 | 830 |
| MSRP (US) | 8299 | 12499 |