If straight-line speed is your priority, the 990 Duke takes the lead. With 10 HP more than the Monster SP, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the Monster SP has a clear advantage. Weighing in 8kg less than the 990 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 990 Duke. Its seat height is 15mm lower than the Monster SP, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: It's a close call. Choose the monster if you prefer its specific styling and ergonomics, or the 990duke if you want the alternative brand character.
| Spec | Monster SP | 990 Duke |
|---|---|---|
| Displacement | 937 | 947 |
| Power | 111 | 121.4 |
| Cylinders | 2 | 2 |
| Weight | 186 | 193.8 |
| Seat height | 840 | 825 |