2024 APRILIA RS457 vs KTM RC 390
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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 Lowest seat here
- KTM RC 390 82.5 cm Tallest seat here
Spread in this comparison: about 1.5 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 44 hp (KTM RC 390) up to 47 hp (2024 APRILIA RS457).
- Torque spans 37 Nm (KTM RC 390) up to 37.2 Nm (2024 APRILIA RS457).
- Weight spans 149 kg (KTM RC 390) to 175 kg (2024 APRILIA RS457).
- Displacement spans 400 cc (KTM RC 390) to 450 cc (2024 APRILIA RS457).
Reader votes so far — total 2: 2024 APRILIA RS457 (1); KTM RC 390 (1).
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| Specification | APRILIA RS457 | KTM RC 390 |
|---|---|---|
| Brand | APRILIA | KTM |
| Model | APRILIA RS457 | KTM RC 390 |
| Engine size | 450cc | 400cc |
| Power | 47hp | 44hp |
| Torque | 37.2nm. | 37nm. |
| Cylinders / valves | Twin cylinder, 8 valves | Single cylinder, 4 valves |
| Weight | 175kg | 149kg |
| Front brake | 320 mm disc brake with four-piston caliper Dual Channel ABS | Four-piston radial fixed calliper, brake disc |
| Rear brake | 220 mm single disc, single-piston caliper ABS | Single-piston floating calliper, brake disc |
| Seat height (cm) | 81cm | 82.5cm |
| Front tyre | 110/70 - 17 | 110/70 R17 |
| Rear tyre | 150/60 - 17 | 150/60 R17 |
| Cooling | Liquid cooling | Liquid cooling |
| Front suspension | 41mm upside-down fork, adjustable preload, 120mm travel | WP APEX 43 |
| Rear suspension | Monoshock, adjustable preload, 130 mm wheel travel | WP APEX - Monoshock |
| Motorcycle type | Supersport | Supersport |
| Top speed | 220km/h | 170km/h |
| Fuel capacity / consumption | 15 L – 5 L/100km | 13.7 L – 3.5 L/100km |
| Service network | ||
| Service quality | ||
| Parts availability | ||
| Price | $6899 | $7564 |
| Brand price lists | View APRILIA price list | View KTM price list |
| Extra features | -Ride by Wire, 5-inch Colour TFT Display |
-TFT Display, slipper clutch |
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2024 APRILIA RS457 vs 2023 KTM RC 390: listed specifications
The 2024 APRILIA RS457 and 2023 KTM RC 390 are closely matched in torque, while the RS457 has more displacement and peak power, and the higher listed top speed, and the RC 390 has a lower listed weight.
Engine displacement
RS457 has a larger listed engine displacement (450 cc vs 400 cc).
Peak power
RS457 has a modest listed power advantage (47 hp vs 44 hp).
Torque
RS457 and RC 390 have very similar listed torque (37.2 Nm vs 37 Nm).
Listed top speed
RS457 has a clear listed top-speed advantage (220 km/h vs 170 km/h).
Cooling
Both motorcycles are listed as liquid-cooled.
Weight and seat height
RC 390 is notably lighter on the listed weight (149 kg vs 175 kg). RS457 has a lower listed seat height (81 cm vs 82.5 cm).
Conclusion
The measurable differences are therefore concentrated in displacement, peak power, listed top speed, weight and seat height, while torque remains relatively close.
Frequently asked questions
What is the top speed of APRILIA RS457 vs KTM RC 390?
APRILIA RS457 is listed at 220 km/h (137 mph) vs 170 km/h (106 mph) for KTM RC 390.
Which has more horsepower, APRILIA RS457 or KTM RC 390?
APRILIA RS457 has 47 hp compared with 44 hp on the KTM RC 390.
Which is lighter, APRILIA RS457 or KTM RC 390?
KTM RC 390 is lighter at 149 kg vs 175 kg for APRILIA RS457.
Which is better, APRILIA RS457 or KTM RC 390?
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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