Yamaha Yz250f vs Kawasaki Kx 250 — which has more power?

Yamaha Yz250f produces ~40 hp @ 12,500 rpm (estimated for modern 2019+ models; earlier models slightly less); Kawasaki Kx 250 produces Approximately 40–42 hp @ 13,000 rpm (2020+ 4-stroke model; earlier 2-stroke models varied).

Yamaha Yz250f vs Kawasaki Kx 250 — which is faster?

Top speed: Yamaha Yz250f ~145 km/h (estimated; not designed for top speed — purpose-built motocross racer), Kawasaki Kx 250 Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed). Yamaha Yz250f is the faster of the two.

Yamaha Yz250f vs Kawasaki Kx 250 — which is lighter?

Weight: Yamaha Yz250f ~105 kg (wet/curb weight — 2020+ models; earlier models slightly heavier), Kawasaki Kx 250 110 kg (curb weight, 2020+ model). Yamaha Yz250f is lighter by 5 kg.

Yamaha Yz250f vs Kawasaki Kx 250 — which is more reliable?

Motoryk rates Yamaha Yz250f 8.5/10 and Kawasaki Kx 250 8.2/10. Yamaha Yz250f scores higher on the overall verdict. Yamaha Yz250f caveat: You want a mystery-history bargain basement deal. Kawasaki Kx 250 caveat: You're new to dirt bikes or motocross.

Yamaha Yz250f vs Kawasaki Kx 250 — which is better for beginners?

Both are reasonable first-bike candidates. Yamaha Yz250f: 40 hp. Kawasaki Kx 250: 40 hp.

Yamaha Yz250f vs Kawasaki Kx 250 — which should I commute on daily?

Both can commute, but lighter weight and gentler power win in traffic. Yamaha Yz250f: 105 kg, 40 hp. Kawasaki Kx 250: 110 kg, 40 hp.

Yamaha Yz250f vs Kawasaki Kx 250

Q: Yamaha Yz250f vs Kawasaki Kx 250 — which is more fuel-efficient?

Fuel use: 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), Kawasaki Kx 250 Estimated 6–8 L/100km (note: varies greatly depending on riding intensity; off-road/motocross use makes precise figures difficult to standardize). Real-world economy varies by rider weight, traffic, and how hard the throttle gets twisted.

Side-by-side comparison for used motorcycle buyers

Yamaha Yz250f vs Kawasaki Kx 250. 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. Kawasaki Kx 250: Approximately 40–42 hp @ 13,000 rpm (2020+ 4-stroke model; earlier 2-stroke models varied) hp, 110 kg (curb weight, 2020+ model) weight, top speed Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed), Motoryk rating 8.2/10.

Yamaha Yz250f

Kawasaki Kx 250

Performance at a Glance

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

Yamaha Yz250f Kawasaki Kx 250

Horsepower (hp)

40 hp

Torque (Nm)

26 Nm

28 Nm

Top Speed (km/h)

145 km/h

120 km/h

Weight (kg) — lower is better

105 kg

110 kg

Type

Motocross

Horsepower

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

Approximately 40–42 hp @ 13,000 rpm (2020+ 4-stroke model; earlier 2-stroke models varied)

Torque

~26 Nm @ 10,000 rpm (estimated)

Approximately 28–30 Nm @ 10,500 rpm (2020+ 4-stroke model; estimate)

Top Speed

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

Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed)

Weight

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

110 kg (curb weight, 2020+ model)

Fuel

~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)

Estimated 6–8 L/100km (note: varies greatly depending on riding intensity; off-road/motocross use makes precise figures difficult to standardize)

Fairing