2025 KTM RC 8C vs 2024 APRILIA RS660

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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.

Top on paper
2025 KTM RC 8C
93.5 pts
2024 APRILIA RS660
6.5 pts

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

Best fit here
2025 KTM RC 8C
51.1 pts
2024 APRILIA RS660
47.9 pts

Touring / long rides

Best fit here
2025 KTM RC 8C
61.7 pts
2024 APRILIA RS660
40.9 pts

Sporty riding

Best fit here
2025 KTM RC 8C
89.4 pts
2024 APRILIA RS660
34.5 pts

New rider friendly

2025 KTM RC 8C
31.4 pts
Best fit here
2024 APRILIA RS660
57.1 pts

Seat height (cm)

Figures are as in the database; boots, suspension sag and road surface change how tall the bike feels.

  • 2025 KTM RC 8C 82 cm Lowest seat here
  • 2024 APRILIA RS660 82 cm Lowest seat here

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 100 hp (2024 APRILIA RS660) up to 135 hp (2025 KTM RC 8C).
  • Torque spans 67 Nm (2024 APRILIA RS660) up to 98 Nm (2025 KTM RC 8C).
  • Weight spans 142 kg (2025 KTM RC 8C) to 183 kg (2024 APRILIA RS660).
  • Displacement spans 650 cc (2024 APRILIA RS660) to 800 cc (2025 KTM RC 8C).
Specification 2025 KTM RC 8C APRILIA RS660
Brand KTM APRILIA
Model 2025 KTM RC 8C APRILIA RS660
Engine size 800cc 650cc
Power 135hp 100hp
Torque 98nm. 67nm.
Cylinders / valves Twin cylinder, 8 valves Twin cylinder, 8 valves
Weight 142kg 183kg
Front brake 2x radially mounted four-piston brake calipers Brembo caliper-equipped, 4-piston dual 320mm disc, radially mounted master cylinder, steel brake hose
Rear brake 2-piston brake caliper, brake disc Brembo caliper-equipped, 2-piston 220mm disc, steel brake hose
Seat height (cm) 82cm 82cm
Front tyre 120/70R17 120/70 x 17 Pirelli Diablo Rosso Corsa II
Rear tyre 180/60R17 180/55 x 17 Pirelli Diablo Rosso Corsa II
Cooling Liquid cooling Liquid cooling
Front suspension WP Kayaba 41mm inverted fork, fully adjustable, compression, rebound, and spring preload, with 120mm travel
Rear suspension WP Asymmetric aluminum rear swingarm, 130mm travel, adjustable preload and rebound
Motorcycle type Supersport Supersport
Top speed 245km/h 245km/h
Fuel capacity / consumption 16 L – 6 L/100km 15 L – 6 L/100km
Service network
Service quality
Parts availability
Price $20000 $11549
Brand price lists View KTM price list View APRILIA price list
Extra features

-Aprilia Performance Ride Control System (APRC), electronic throttle control, ATCS (Aprilia Traction Control System) 

-AWC (Aprilia Wheelie Control), AEB (Aprilia Engine Brake Control), AEM (Aprilia Engine Map) 

-ACC (Aprilia Cruise Control System), 5 riding modes (track, road, mixed, and two personalized modes)

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2025 KTM RC 8C vs 2024 APRILIA RS660: listed specifications

The 2025 KTM RC 8C and 2024 APRILIA RS660 differ on the listed specifications: the RC 8C has more displacement, peak power and torque, and a lower listed weight.

Engine displacement

RC 8C has a clearly larger listed engine displacement (800 cc vs 650 cc).

Peak power

RC 8C has a clear listed power advantage (135 hp vs 100 hp).

Torque

RC 8C has a clear listed torque advantage (98 Nm vs 67 Nm).

Listed top speed

RC 8C and RS660 have very similar listed top speeds (245 km/h vs 245 km/h).

Cooling

Both motorcycles are listed as liquid-cooled.

Weight and seat height

RC 8C is notably lighter on the listed weight (142 kg vs 183 kg). RC 8C and RS660 have very similar seat heights (82 cm vs 82 cm).

Conclusion

The measurable differences are therefore concentrated in displacement, peak power, torque and weight, while listed top speed and seat height remain relatively close.

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Frequently asked questions

What is the top speed of 2025 KTM RC 8C vs APRILIA RS660?

Both are listed at 245 km/h (152 mph) top speed in our specification data.

Which has more horsepower, 2025 KTM RC 8C or APRILIA RS660?

2025 KTM RC 8C has 135 hp compared with 100 hp on the APRILIA RS660.

Which is lighter, 2025 KTM RC 8C or APRILIA RS660?

2025 KTM RC 8C is lighter at 142 kg vs 183 kg for APRILIA RS660.

Which is better, 2025 KTM RC 8C or APRILIA RS660?

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.