Ktm Sx 450 vs Yamaha Yz250f — which has more power?

Ktm Sx 450 produces ~63 hp @ 9,500 rpm (estimated for modern 2020+ generation); Yamaha Yz250f produces ~40 hp @ 12,500 rpm (estimated for modern 2019+ models; earlier models slightly less). Ktm Sx 450 wins by 23 hp.

Ktm Sx 450 vs Yamaha Yz250f — which is faster?

Top speed: Ktm Sx 450 ~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure), Yamaha Yz250f ~145 km/h (estimated; not designed for top speed — purpose-built motocross racer).

Ktm Sx 450 vs Yamaha Yz250f — which is lighter?

Weight: Ktm Sx 450 ~106 kg (wet/curb weight, varies slightly by model year), Yamaha Yz250f ~105 kg (wet/curb weight — 2020+ models; earlier models slightly heavier).

Ktm Sx 450 vs Yamaha Yz250f — which is more reliable?

Motoryk rates Ktm Sx 450 8.5/10 and Yamaha Yz250f 8.5/10. Ktm Sx 450 caveat: You skip service intervals or ride casually. Yamaha Yz250f caveat: You want a mystery-history bargain basement deal.

Ktm Sx 450 vs Yamaha Yz250f — which is better for beginners?

Yamaha Yz250f is the friendlier choice for a first bike — 40 hp is manageable. The Ktm Sx 450 is better held for a second bike.

Ktm Sx 450 vs Yamaha Yz250f — which should I commute on daily?

Both can commute, but lighter weight and gentler power win in traffic. Ktm Sx 450: 106 kg, 63 hp. Yamaha Yz250f: 105 kg, 40 hp.

Ktm Sx 450 vs Yamaha Yz250f

Q: Ktm Sx 450 vs Yamaha Yz250f — which is more fuel-efficient?

Fuel use: Ktm Sx 450 ~7–9 L/100km (estimated; highly variable depending on riding intensity — note: motocross bikes are not typically measured by fuel economy), Yamaha Yz250f ~5.5 L/100km / ~18 km/L (estimated; varies significantly with riding intensity — note: off-road/motocross use makes precise figures difficult to pin down). Real-world economy varies by rider weight, traffic, and how hard the throttle gets twisted.

Side-by-side comparison for used motorcycle buyers

Ktm Sx 450 vs Yamaha Yz250f. 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 Yz250f: ~40 hp @ 12,500 rpm (estimated for modern 2019+ models; earlier models slightly less) hp, ~105 kg (wet/curb weight — 2020+ models; earlier models slightly heavier) weight, top speed ~145 km/h (estimated; not designed for top speed — purpose-built motocross racer), Motoryk rating 8.5/10.

Ktm Sx 450

Yamaha Yz250f

Performance at a Glance

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

Ktm Sx 450 Yamaha Yz250f

Horsepower (hp)

63 hp

40 hp

Torque (Nm)

54 Nm

26 Nm

Top Speed (km/h)

145 km/h

Weight (kg) — lower is better

106 kg

105 kg

Type

Motocross

Horsepower

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

~40 hp @ 12,500 rpm (estimated for modern 2019+ models; earlier models slightly less)

Torque

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

~26 Nm @ 10,000 rpm (estimated)

Top Speed

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

~145 km/h (estimated; not designed for top speed — purpose-built motocross racer)

Weight

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

~105 kg (wet/curb weight — 2020+ models; earlier models slightly heavier)

Fuel

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

~5.5 L/100km / ~18 km/L (estimated; varies significantly with riding intensity — note: off-road/motocross use makes precise figures difficult to pin down)

Fairing