Aprilia Tuono 660 vs KTM 990 Duke
Specs side by side, plus our verdict on which one is the smarter buy for the way you ride.
The Aprilia Tuono 660 and KTM 990 Duke are among the most cross-shopped naked bikes of 2026. The Aprilia Tuono 660 undercuts the KTM 990 Duke by about $1,600, so value is squarely on the table. On paper the KTM 990 Duke leads on power with 123 hp. Below we put them head to head on price, performance, weight and seat height, then give our verdict on which one is the smarter buy for the way you ride.
Our pickAprilia
Aprilia Tuono 660
KTM
KTM 990 DukeThe verdict
The Aprilia Tuono 660 edges it overall at 8.5/10, but the KTM 990 Duke wins on most exciting, so let how you ride decide.
Aprilia Tuono 660
A2-legal, 105 hp.
KTM 990 Duke
123 hp and 0.65 hp/kg, the strongest here.
Aprilia Tuono 660
Our 8.5/10 at $10,899, the most bike per dollar.
Aprilia Tuono 660
183 kg with an 820 mm seat, the easiest to throw around.
Aprilia Tuono 660
Our top score in this matchup at 8.5/10.
Cyan marks the best figure in each row. Specs are the most-cited for the current model; verify before relying on them.
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Aprilia Tuono 660 vs KTM 990 Duke: your questions answered
Which is faster, the Aprilia Tuono 660 or the KTM 990 Duke?
The KTM 990 Duke makes the most power at 123 hp and 103 Nm, giving it the edge on outright performance.
Which is cheaper, the Aprilia Tuono 660 or the KTM 990 Duke?
The Aprilia Tuono 660 is the most affordable here with an MSRP around $10,899.
Which is lighter, the Aprilia Tuono 660 or the KTM 990 Duke?
The Aprilia Tuono 660 is the lightest at 183 kg, which makes it the easiest to manage at low speed and in the bends.
Which is better for a beginner, the Aprilia Tuono 660 or the KTM 990 Duke?
For a new rider we'd point to the Aprilia Tuono 660: A2-legal, 105 hp and 183 kg make it the most approachable of the group.
