If straight-line speed is your priority, the Monster SP takes the lead. With 44 HP more than the Z650 S ABS, 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 4kg 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 Z650 S ABS. Its seat height is 35mm lower than the Monster SP, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the monster offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | Monster SP | Z650 S ABS |
|---|---|---|
| Displacement | 937 | 649 |
| Power | 111 | 67 |
| Cylinders | 2 | 2 |
| Weight | 186 | 190 |
| Seat height | 840 | 805 |