Yamaha Yz250f vs Gas Gas Ex 350f — which has more power?

Yamaha Yz250f produces ~40 hp @ 12,500 rpm (estimated for modern 2019+ models; earlier models slightly less); Gas Gas Ex 350f produces ~63 hp @ 9,500 rpm (estimate based on KTM EXC-F 350 platform; GAS GAS does not publish official figures). Gas Gas Ex 350f wins by 23 hp.

Yamaha Yz250f vs Gas Gas Ex 350f — which is faster?

Top speed: Yamaha Yz250f ~145 km/h (estimated; not designed for top speed — purpose-built motocross racer), Gas Gas Ex 350f ~175 km/h (estimate; limited by off-road gearing and use case). Gas Gas Ex 350f is the faster of the two.

Yamaha Yz250f vs Gas Gas Ex 350f — which is lighter?

Weight: Yamaha Yz250f ~105 kg (wet/curb weight — 2020+ models; earlier models slightly heavier), Gas Gas Ex 350f 111 kg (wet/curb weight). Yamaha Yz250f is lighter by 6 kg.

Yamaha Yz250f vs Gas Gas Ex 350f — 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), Gas Gas Ex 350f Estimated 4.5–6.0 L/100km (note: varies significantly with terrain and riding style; no official manufacturer figure published). Real-world economy varies by rider weight, traffic, and how hard the throttle gets twisted.

Yamaha Yz250f vs Gas Gas Ex 350f — which is more reliable?

Motoryk rates Yamaha Yz250f 8.5/10 and Gas Gas Ex 350f 8.0/10. Yamaha Yz250f scores higher on the overall verdict. Yamaha Yz250f caveat: You want a mystery-history bargain basement deal. Gas Gas Ex 350f caveat: You want casual low-maintenance weekend transport.

Yamaha Yz250f vs Gas Gas Ex 350f — which is better for beginners?

Yamaha Yz250f is the friendlier choice for a first bike — 40 hp is manageable. The Gas Gas Ex 350f is better held for a second bike.

Yamaha Yz250f vs Gas Gas Ex 350f — which should I commute on daily?

Both can commute, but lighter weight and gentler power win in traffic. Yamaha Yz250f: 105 kg, 40 hp. Gas Gas Ex 350f: 111 kg, 63 hp.

Yamaha Yz250f vs Gas Gas Ex 350f

Side-by-side comparison for used motorcycle buyers

Yamaha Yz250f vs Gas Gas Ex 350f. 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. Gas Gas Ex 350f: ~63 hp @ 9,500 rpm (estimate based on KTM EXC-F 350 platform; GAS GAS does not publish official figures) hp, 111 kg (wet/curb weight) weight, top speed ~175 km/h (estimate; limited by off-road gearing and use case), Motoryk rating 8.0/10.

Yamaha Yz250f

Gas Gas Ex 350f

Performance at a Glance

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

Yamaha Yz250f Gas Gas Ex 350f

Horsepower (hp)

40 hp

63 hp

Torque (Nm)

26 Nm

39 Nm

Top Speed (km/h)

145 km/h

175 km/h

Weight (kg) — lower is better

105 kg

111 kg

Type

Motocross

Horsepower

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

~63 hp @ 9,500 rpm (estimate based on KTM EXC-F 350 platform; GAS GAS does not publish official figures)

Torque

~26 Nm @ 10,000 rpm (estimated)

~39 Nm @ 7,500 rpm (estimate based on shared KTM Group platform)

Top Speed

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

~175 km/h (estimate; limited by off-road gearing and use case)

Weight

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

111 kg (wet/curb weight)

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 4.5–6.0 L/100km (note: varies significantly with terrain and riding style; no official manufacturer figure published)

Fairing