If straight-line speed is your priority, the 390 Duke takes the lead. With 34 HP more than the Grom, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the Grom has a clear advantage. Weighing in 63kg less than the 390 Duke, 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 Grom. Its seat height is 59mm lower than the 390 Duke, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the 390duke offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | Grom | 390 Duke |
|---|---|---|
| Displacement | 124 | 398.7 |
| Power | 9.7 | 44 |
| Cylinders | 1 | 1 |
| Weight | 102 | 165 |
| Seat height | 761 | 820 |