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All Bikes/Compare/Kawasaki Kx 250 vs Gas Gas Ex 350f

Kawasaki Kx 250 vs Gas Gas Ex 350f

Side-by-side comparison for used motorcycle buyers

Kawasaki Kx 250 vs Gas Gas Ex 350f. 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. 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.

Performance at a Glance

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

Kawasaki Kx 250 Gas Gas Ex 350f
Horsepower (hp)
40 hp
63 hp
Torque (Nm)
28 Nm
39 Nm
Top Speed (km/h)
120 km/h
175 km/h
Weight (kg) — lower is better
110 kg
111 kg
Type
Motocross
Motocross
Horsepower
Approximately 40–42 hp @ 13,000 rpm (2020+ 4-stroke model; earlier 2-stroke models varied)
~63 hp @ 9,500 rpm (estimate based on KTM EXC-F 350 platform; GAS GAS does not publish official figures)
Torque
Approximately 28–30 Nm @ 10,500 rpm (2020+ 4-stroke model; estimate)
~39 Nm @ 7,500 rpm (estimate based on shared KTM Group platform)
Top Speed
Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed)
~175 km/h (estimate; limited by off-road gearing and use case)
Weight
110 kg (curb weight, 2020+ model)
111 kg (wet/curb weight)
Fuel
Estimated 6–8 L/100km (note: varies greatly depending on riding intensity; off-road/motocross use makes precise figures difficult to standardize)
Estimated 4.5–6.0 L/100km (note: varies significantly with terrain and riding style; no official manufacturer figure published)
Fairing
No
No

Individual Reviews

Kawasaki Kx 250
Kawasaki Kx 250
8.2/10

"Buy it right and you'll grin every single lap."

Pros
+Explosive, rewarding power delivery
+Sharp, responsive chassis
+Strong parts availability
Cons
Punishing for inexperienced riders
Two-stroke maintenance costs pile up
Power valve requires regular attention
Gas Gas Ex 350f
Gas Gas Ex 350f
8.0/10

"A KTM at a Gas Gas price — smart used buy."

Pros
+KTM engine proven reliability
+Lightweight agile handling
+Strong low-end torque
Cons
Suspension needs frequent rebuilding
Thirsty on hard enduro
Narrow comfortable riding window

Top 10 Accessories

Picks that work on either bike.

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10W-40 2-stroke premix oil
Engine Oil
10W-40 2-stroke premix oil
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10W-40 Full Synthetic Motorcycle Oil JASO MA2
Motorex · Engine Oil
10W-40 Full Synthetic Motorcycle Oil JASO MA2
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⚙️
Oil Filter
Oil Filter
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⚙️
HifloFiltro · Oil Filter
HF204 Oil Filter
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🌬️
Twin Air · Air Filter
Twin Air Power Filter
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Air Filter
Air Filter
Air Filter
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NGK · Spark Plugs
NGK BR9EG spark plug
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NGK LKAR8AI-9 Spark Plug
NGK · Spark Plugs
NGK LKAR8AI-9 Spark Plug
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Full-Face Motorcycle Helmet
Helmet
Full-Face Motorcycle Helmet
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Riding Gloves
Gloves
Riding Gloves
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