Yamaha Yz450f vs Ktm Sx 450 — which has more power?

Yamaha Yz450f produces Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end); Ktm Sx 450 produces ~63 hp @ 9,500 rpm (estimated for modern 2020+ generation). Ktm Sx 450 wins by 3 hp.

Yamaha Yz450f vs Ktm Sx 450 — which is faster?

Top speed: Yamaha Yz450f Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure), Ktm Sx 450 ~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure).

Yamaha Yz450f vs Ktm Sx 450 — which is more fuel-efficient?

Fuel use: Yamaha Yz450f Estimated 6–8 L/100km under typical motocross/off-road use (note: highly variable depending on riding intensity; no official road consumption figure exists for this competition-focused bike), Ktm Sx 450 ~7–9 L/100km (estimated; highly variable depending on riding intensity — note: motocross bikes are not typically measured by fuel economy). Real-world economy varies by rider weight, traffic, and how hard the throttle gets twisted.

Yamaha Yz450f vs Ktm Sx 450 — which is more reliable?

Motoryk rates Yamaha Yz450f 8.5/10 and Ktm Sx 450 8.5/10. Yamaha Yz450f caveat: Beginners or riders skipping routine maintenance schedules. Ktm Sx 450 caveat: You skip service intervals or ride casually.

Yamaha Yz450f vs Ktm Sx 450 — which is better for beginners?

Neither is a typical first-bike pick — Yamaha Yz450f 60 hp, Ktm Sx 450 63 hp. Consider a smaller-displacement bike for licensing year one.

Yamaha Yz450f vs Ktm Sx 450 — which should I commute on daily?

Both can commute, but lighter weight and gentler power win in traffic. Yamaha Yz450f: 110 kg, 60 hp. Ktm Sx 450: 106 kg, 63 hp.

Yamaha Yz450f vs Ktm Sx 450

Q: Yamaha Yz450f vs Ktm Sx 450 — which is lighter?

Weight: Yamaha Yz450f 110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier), Ktm Sx 450 ~106 kg (wet/curb weight, varies slightly by model year).

Side-by-side comparison for used motorcycle buyers

Yamaha Yz450f vs Ktm Sx 450. Yamaha Yz450f: Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end) hp, 110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier) weight, top speed Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure), Motoryk rating 8.5/10. Ktm Sx 450: ~63 hp @ 9,500 rpm (estimated for modern 2020+ generation) hp, ~106 kg (wet/curb weight, varies slightly by model year) weight, top speed ~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure), Motoryk rating 8.5/10.

Yamaha Yz450f

Ktm Sx 450

Performance at a Glance

Green = winner per metric · Bars are relative to the higher value

Yamaha Yz450f Ktm Sx 450

Horsepower (hp)

60 hp

63 hp

Torque (Nm)

53 Nm

54 Nm

Top Speed (km/h)

145 km/h

Weight (kg) — lower is better

110 kg

106 kg

Type

Motocross

Horsepower

Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end)

~63 hp @ 9,500 rpm (estimated for modern 2020+ generation)

Torque

Approximately 53–55 Nm @ 8,000 rpm (estimate; Yamaha does not officially publish torque figures for this model)

~54 Nm @ 7,000 rpm (estimated for modern 2020+ generation)

Top Speed

Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure)

~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure)

Weight

110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier)

~106 kg (wet/curb weight, varies slightly by model year)

Fuel

Estimated 6–8 L/100km under typical motocross/off-road use (note: highly variable depending on riding intensity; no official road consumption figure exists for this competition-focused bike)

~7–9 L/100km (estimated; highly variable depending on riding intensity — note: motocross bikes are not typically measured by fuel economy)

Fairing