390 Duke 2025 vs Trident 660 2024

If straight-line speed is your priority, the Trident 660 takes the lead. With 36 HP more than the 390 Duke, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the 390 Duke has a clear advantage. Weighing in 24kg less than the Trident 660, 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 Trident 660. Its seat height is 15mm 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 trident660 offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.