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Head to head

Kawasaki Ninja 500 vs Aprilia RS 125

Specs side by side, plus our verdict on which one is the smarter buy for the way you ride.

The Kawasaki Ninja 500 and Aprilia RS 125 are among the most cross-shopped sport bikes of 2026. The Kawasaki Ninja 500 undercuts the Aprilia RS 125 by about $500, so value is squarely on the table. On paper the Kawasaki Ninja 500 leads on power with 51 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.

Kawasaki Ninja 500
Our pick
8.0

Kawasaki

Kawasaki Ninja 500
Aprilia RS 125
7.9

Aprilia

Aprilia RS 125

The verdict

The Kawasaki Ninja 500 edges it overall at 8/10, but the Aprilia RS 125 wins on best for new riders, so let how you ride decide.

Best for new riders

Aprilia RS 125

A2-legal, 15 hp, forgiving to learn on.

Most exciting

Kawasaki Ninja 500

51 hp and 0.30 hp/kg, the strongest here.

Best value

Kawasaki Ninja 500

Our 8/10 at $5,299, the most bike per dollar.

Easiest to manage

Aprilia RS 125

152 kg with an 820 mm seat, the easiest to throw around.

Highest rated

Kawasaki Ninja 500

Our top score in this matchup at 8/10.

Price & rating
Price$5,299$5,799
KickTheStand score8 / 107.9 / 10
Performance
Engine451cc twin125cc single
Power51 hp15 hp
Torque42.6 Nm11.8 Nm
Power-to-weight0.30 hp/kg0.10 hp/kg
Chassis & brakes
Front suspension41mm telescopic fork41mm USD fork
Rear suspensionMonoshockMonoshock
Front brakesSingle 310mm discSingle 300mm disc, radial 4-piston
Rear brakesSingle 220mm discSingle 218mm disc
Dimensions & practicality
Weight172 kg152 kg
Seat height785 mm820 mm
Fuel capacity14 L14.5 L
Suitability
ClassSportSport
A2 licenceYesYes
Good for beginnersYesYes
Best forsport, commuting, learninglearning, sport, track

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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Kawasaki Ninja 500 vs Aprilia RS 125: your questions answered

Which is faster, the Kawasaki Ninja 500 or the Aprilia RS 125?

The Kawasaki Ninja 500 makes the most power at 51 hp and 42.6 Nm, giving it the edge on outright performance.

Which is cheaper, the Kawasaki Ninja 500 or the Aprilia RS 125?

The Kawasaki Ninja 500 is the most affordable here with an MSRP around $5,299.

Which is lighter, the Kawasaki Ninja 500 or the Aprilia RS 125?

The Aprilia RS 125 is the lightest at 152 kg, which makes it the easiest to manage at low speed and in the bends.

Which is better for a beginner, the Kawasaki Ninja 500 or the Aprilia RS 125?

For a new rider we'd point to the Aprilia RS 125: A2-legal, 15 hp and 152 kg make it the most approachable of the group.

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