2024 APRILIA RS457 vs KAWASAKI Ninja 400
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Scores, summary & seat (optional) Estimates and auto text from specs — open if you want them.
Technical score (estimate)
Weighted mix of power, torque, power-to-weight, top speed and lighter weight within this comparison only. Not a real-world verdict — riding style and roads matter.
Usage fit (estimate)
Rough scores for city riding, touring, sporty riding and new riders — mix of specs and bike category. Same caveats as the technical score: traffic, skill and tyres matter.
City / commute
Touring / long rides
Sporty riding
New rider friendly
Seat height (cm)
Figures are as in the database; boots, suspension sag and road surface change how tall the bike feels.
- 2024 APRILIA RS457 81 cm Tallest seat here
- KAWASAKI Ninja 400 78.5 cm Lowest seat here
Spread in this comparison: about 2.5 cm.
Rough guide: comfortable flat-foot reach often needs inseam roughly in the same ballpark as seat height (varies a lot by ergonomics).
Auto summary from specs
Generated from the numbers in the comparison — not a review.
- Power spans 45 hp (KAWASAKI Ninja 400) up to 47 hp (2024 APRILIA RS457).
- Torque figures are very close.
- Weight spans 168 kg (KAWASAKI Ninja 400) to 175 kg (2024 APRILIA RS457).
- Displacement spans 400 cc (KAWASAKI Ninja 400) to 450 cc (2024 APRILIA RS457).
Reader votes so far — total 1: 2024 APRILIA RS457 (1); KAWASAKI Ninja 400 (0).
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| Specification | APRILIA RS457 | KAWASAKI Ninja 400 |
|---|---|---|
| Brand | APRILIA | KAWASAKI |
| Model | APRILIA RS457 | KAWASAKI Ninja 400 |
| Engine size | 450cc | 400cc |
| Power | 47hp | 45hp |
| Torque | 37.2nm. | 37.2nm. |
| Cylinders / valves | Twin cylinder, 8 valves | Twin cylinder, 8 valves |
| Weight | 175kg | 168kg |
| Front brake | 320 mm disc brake with four-piston caliper Dual Channel ABS | 310 mm petal discs. Single balanced actuation dual-piston caliper. |
| Rear brake | 220 mm single disc, single-piston caliper ABS | 220 mm single petal disc. Dual-piston caliper. |
| Seat height (cm) | 81cm | 78.5cm |
| Front tyre | 110/70 - 17 | 110/70R17 |
| Rear tyre | 150/60 - 17 | 150/60R17 |
| Cooling | Liquid cooling | Liquid cooling |
| Front suspension | 41mm upside-down fork, adjustable preload, 120mm travel | 41mm telescopic fork |
| Rear suspension | Monoshock, adjustable preload, 130 mm wheel travel | Bottom-Link Uni-Trak, gas-charged, preload adjustable |
| Motorcycle type | Supersport | Supersport |
| Top speed | 220km/h | 205km/h |
| Fuel capacity / consumption | 15 L – 5 L/100km | 14 L – 4 L/100km |
| Service network | ||
| Service quality | ||
| Parts availability | ||
| Price | $6899 | $5899 |
| Brand price lists | View APRILIA price list | View KAWASAKI price list |
| Extra features | -Ride by Wire, 5-inch Colour TFT Display |
-Slipper Clutch -Economic Riding Indicator |
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2024 APRILIA RS457 vs 2023 KAWASAKI Ninja 400: listed specifications
The 2024 APRILIA RS457 and 2023 KAWASAKI Ninja 400 are closely matched in peak power and torque, while the RS457 has more displacement, and the higher listed top speed, and the Ninja 400 has a lower listed weight.
Engine displacement
RS457 has a larger listed engine displacement (450 cc vs 400 cc).
Peak power
RS457 and Ninja 400 have very similar peak power (47 hp vs 45 hp).
Torque
RS457 and Ninja 400 have very similar listed torque (37.2 Nm vs 37.2 Nm).
Listed top speed
RS457 has a modest listed top-speed advantage (220 km/h vs 205 km/h).
Cooling
Both motorcycles are listed as liquid-cooled.
Weight and seat height
Ninja 400 has a modest listed weight advantage (168 kg vs 175 kg). Ninja 400 has a lower listed seat height (78.5 cm vs 81 cm).
Conclusion
The measurable differences are therefore concentrated in displacement, listed top speed, weight and seat height, while peak power and torque remain relatively close.
Frequently asked questions
What is the top speed of APRILIA RS457 vs KAWASAKI Ninja 400?
APRILIA RS457 is listed at 220 km/h (137 mph) vs 205 km/h (127 mph) for KAWASAKI Ninja 400.
Which has more horsepower, APRILIA RS457 or KAWASAKI Ninja 400?
APRILIA RS457 has 47 hp compared with 45 hp on the KAWASAKI Ninja 400.
Which is lighter, APRILIA RS457 or KAWASAKI Ninja 400?
KAWASAKI Ninja 400 is lighter at 168 kg vs 175 kg for APRILIA RS457.
Which is better, APRILIA RS457 or KAWASAKI Ninja 400?
It depends on your riding style. Compare top speed, weight, fuel use and price in the table on this page, then vote for the bike you prefer.
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