If straight-line speed is your priority, the Vitpilen 401 takes the lead. With 30 HP more than the GSX-S125, it offers a more spirited ride that will be noticeable on highway overtakes or track days. Riders with a shorter inseam should lean towards the GSX-S125. Its seat height is 35mm lower than the Vitpilen 401, making it much easier to flat-foot at stoplights and increasing confidence during stops.
| Spec | Vitpilen 401 | GSX-S125 |
|---|---|---|
| Displacement | 398.6 | 124 |
| Power | 45 | 15 |
| Cylinders | 1 | 1 |
| Weight | 0 | 135 |
| Seat height | 820 | 785 |