Aprilia Rx 125 vs Ktm 450 Exc-f — which has more power?

Aprilia Rx 125 produces ~15 hp @ 9,000 rpm — Note: 2018+ four-stroke Euro4 model; two-stroke variants produced slightly less restricted power; Ktm 450 Exc-f produces ~63 hp @ 9,000 rpm (note: KTM does not officially publish output figures; estimate based on third-party dyno testing of 2020–2024 models). Ktm 450 Exc-f wins by 48 hp.

Aprilia Rx 125 vs Ktm 450 Exc-f — which is faster?

Top speed: Aprilia Rx 125 ~100 km/h — Note: estimate; varies between two-stroke and four-stroke generations, Ktm 450 Exc-f ~170 km/h (note: estimate; street-legal gearing limits top end, varies by year and sprocket setup). Ktm 450 Exc-f is the faster of the two.

Aprilia Rx 125 vs Ktm 450 Exc-f — which is lighter?

Weight: Aprilia Rx 125 ~107 kg (wet/curb weight) — Note: approximate for the modern four-stroke generation, Ktm 450 Exc-f 111 kg (wet/curb weight, based on 2022–2024 model specs). Aprilia Rx 125 is lighter by 4 kg.

Aprilia Rx 125 vs Ktm 450 Exc-f — which is more reliable?

Motoryk rates Aprilia Rx 125 7.5/10 and Ktm 450 Exc-f 8.5/10. Ktm 450 Exc-f scores higher on the overall verdict. Aprilia Rx 125 caveat: You want cheap, easy maintenance anywhere. Ktm 450 Exc-f caveat: Beginners or riders skipping regular maintenance schedules.

Aprilia Rx 125 vs Ktm 450 Exc-f — which is better for beginners?

Aprilia Rx 125 is the friendlier choice for a first bike — 15 hp is manageable. The Ktm 450 Exc-f is better held for a second bike.

Aprilia Rx 125 vs Ktm 450 Exc-f — which should I commute on daily?

Both can commute, but lighter weight and gentler power win in traffic. Aprilia Rx 125: 107 kg, 15 hp. Ktm 450 Exc-f: 111 kg, 63 hp.

Aprilia Rx 125 vs Ktm 450 Exc-f

Q: Aprilia Rx 125 vs Ktm 450 Exc-f — which is more fuel-efficient?

Fuel use: Aprilia Rx 125 ~3.5 L/100km (est. 28 km/L) — Note: estimate based on typical 125cc four-stroke off-road usage; two-stroke variants may vary, Ktm 450 Exc-f Estimated 6–9 L/100km depending on terrain and riding style (note: estimate, varies significantly off-road vs. road). Real-world economy varies by rider weight, traffic, and how hard the throttle gets twisted.

Side-by-side comparison for used motorcycle buyers

Aprilia Rx 125 vs Ktm 450 Exc-f. Aprilia Rx 125: ~15 hp @ 9,000 rpm — Note: 2018+ four-stroke Euro4 model; two-stroke variants produced slightly less restricted power hp, ~107 kg (wet/curb weight) — Note: approximate for the modern four-stroke generation weight, top speed ~100 km/h — Note: estimate; varies between two-stroke and four-stroke generations, Motoryk rating 7.5/10. Ktm 450 Exc-f: ~63 hp @ 9,000 rpm (note: KTM does not officially publish output figures; estimate based on third-party dyno testing of 2020–2024 models) hp, 111 kg (wet/curb weight, based on 2022–2024 model specs) weight, top speed ~170 km/h (note: estimate; street-legal gearing limits top end, varies by year and sprocket setup), Motoryk rating 8.5/10.