In terms of raw performance, these two are evenly matched. The Monster SP and 890 Duke GP produce nearly identical power figures, meaning the real-world difference will come down to gearing and torque delivery rather than peak horsepower. Both bikes share a similar footprint on the scale, with only a negligible 3kg 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 890 Duke GP. Its seat height is 20mm 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 890duke if you want the alternative brand character.
| Spec | Monster SP | 890 Duke GP |
|---|---|---|
| Displacement | 937 | 889 |
| Power | 111 | 113.9 |
| Cylinders | 2 | 2 |
| Weight | 186 | 183 |
| Seat height | 840 | 820 |