Aprilia RS 457 vs Kawasaki Ninja 125
Specs side by side, plus our verdict on which one is the smarter buy for the way you ride.
The Aprilia RS 457 and Kawasaki Ninja 125 are among the most cross-shopped sport bikes of 2026. The Kawasaki Ninja 125 undercuts the Aprilia RS 457 by about $1,500, so value is squarely on the table. On paper the Aprilia RS 457 leads on power with 48 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 RS 457
Kawasaki
Kawasaki Ninja 125The verdict
The Aprilia RS 457 edges it overall at 8.3/10, but the Kawasaki Ninja 125 wins on best for new riders, so let how you ride decide.
Kawasaki Ninja 125
A2-legal, 15 hp, forgiving to learn on.
Aprilia RS 457
48 hp and 0.27 hp/kg, the strongest here.
Kawasaki Ninja 125
Our 7.5/10 at $5,299, the most bike per dollar.
Kawasaki Ninja 125
148 kg with an 785 mm seat, the easiest to throw around.
Aprilia RS 457
Our top score in this matchup at 8.3/10.
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 RS 457 vs Kawasaki Ninja 125: your questions answered
Which is faster, the Aprilia RS 457 or the Kawasaki Ninja 125?
The Aprilia RS 457 makes the most power at 48 hp and 43.5 Nm, giving it the edge on outright performance.
Which is cheaper, the Aprilia RS 457 or the Kawasaki Ninja 125?
The Kawasaki Ninja 125 is the most affordable here with an MSRP around $5,299.
Which is lighter, the Aprilia RS 457 or the Kawasaki Ninja 125?
The Kawasaki Ninja 125 is the lightest at 148 kg, which makes it the easiest to manage at low speed and in the bends.
Which is better for a beginner, the Aprilia RS 457 or the Kawasaki Ninja 125?
For a new rider we'd point to the Kawasaki Ninja 125: A2-legal, 15 hp and 148 kg make it the most approachable of the group.
