Yamaha Yz250f vs Yamaha Yz450f — which has more power?

Yamaha Yz250f produces ~40 hp @ 12,500 rpm (estimated for modern 2019+ models; earlier models slightly less); Yamaha Yz450f produces Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end). Yamaha Yz450f wins by 20 hp.

Yamaha Yz250f vs Yamaha Yz450f — which is faster?

Top speed: Yamaha Yz250f ~145 km/h (estimated; not designed for top speed — purpose-built motocross racer), Yamaha Yz450f Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure).

Yamaha Yz250f vs Yamaha Yz450f — which is lighter?

Weight: Yamaha Yz250f ~105 kg (wet/curb weight — 2020+ models; earlier models slightly heavier), Yamaha Yz450f 110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier). Yamaha Yz250f is lighter by 5 kg.

Yamaha Yz250f vs Yamaha Yz450f — which is more reliable?

Motoryk rates Yamaha Yz250f 8.5/10 and Yamaha Yz450f 8.5/10. Yamaha Yz250f caveat: You want a mystery-history bargain basement deal. Yamaha Yz450f caveat: Beginners or riders skipping routine maintenance schedules.

Yamaha Yz250f vs Yamaha Yz450f — which is better for beginners?

Yamaha Yz250f is the friendlier choice for a first bike — 40 hp is manageable. The Yamaha Yz450f is better held for a second bike.

Yamaha Yz250f vs Yamaha Yz450f — which should I commute on daily?

Both can commute, but lighter weight and gentler power win in traffic. Yamaha Yz250f: 105 kg, 40 hp. Yamaha Yz450f: 110 kg, 60 hp.

Yamaha Yz250f vs Yamaha Yz450f

Q: Yamaha Yz250f vs Yamaha Yz450f — 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), 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). 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 Yamaha Yz450f. 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. 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.

Yamaha Yz250f

Yamaha Yz450f

Performance at a Glance

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

Yamaha Yz250f Yamaha Yz450f

Horsepower (hp)

40 hp

60 hp

Torque (Nm)

26 Nm

53 Nm

Top Speed (km/h)

145 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 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end)

Torque

~26 Nm @ 10,000 rpm (estimated)

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

Top Speed

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

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

Weight

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

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

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

Fairing