If straight-line speed is your priority, the GSX-8S takes the lead. With 14 HP more than the Z650, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the Z650 has a clear advantage. Weighing in 14kg less than the GSX-8S, 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 Z650. Its seat height is 20mm lower than the GSX-8S, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the gsx8 offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | Z650 | GSX-8S |
|---|---|---|
| Displacement | 648 | 776 |
| Power | 68 | 82 |
| Cylinders | 2 | 2 |
| Weight | 188 | 202 |
| Seat height | 790 | 810 |