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All Bikes/Kawasaki/Kx 250
Kawasaki Kx 250
Motocross

Kawasaki Kx 250

The Kawasaki Kx 250 has a top speed of Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed), produces Approximately 40–42 hp and weighs 110 kg. Motoryk rates it 8.2/10.

La Kawasaki KX250 se presentó en 1974 como una máquina dedicada a las carreras de motocross, que evolucionó a lo largo de décadas de desarrollo competitivo hasta convertirse en una de las motos de motocross de 250 cc más respetadas del mundo. Sufrió importantes transformaciones a lo largo de los años, pasando de un motor de 2 tiempos (que dominaba su tradición) a un motor de 4 tiempos con inyección de combustible en 2020, manteniendo el ritmo de los estándares modernos de emisiones y rendimiento. El KX250 ha sido un clásico en el circuito de motocross, conocido por su agresiva entrega de potencia y su chasis diseñado para carreras, lo que lo convierte en el favorito tanto de los pilotos aficionados como de los profesionales.

Approximately 40–42 hp

Potencia

Approximately 28–30 Nm

Torsión

110 kg

Peso

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

Velocidad máxima

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

Combustible

Desnudo

Cuerpo

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Lo que los compradores deben saber

🔧

Top End Wear Alert

The KX250 two-stroke requires piston and ring replacement every 30-40 hours of hard riding. Always ask the seller for maintenance records and inspect the top end before buying.

💰

Strong Resale Value

The KX250 holds its value exceptionally well in the used dirt bike market due to its proven race pedigree and loyal fan base. A well-maintained example can retain 70-80% of its value over several years.

Aggressive Power Delivery

The KX250 is known for its snappy, aggressive powerband that favors experienced riders over beginners. This raw performance is a major selling point for racers but can be a handful on tight trails.

Reseña de un comprador usado

8.2/10
Lo mejor para
Experienced motocross riders wanting competitive two-stroke performance

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

$2,500-$5,500 used

The KX250 is a serious race bike wearing trail clothes, and that's exactly what makes buying one used complicated. Kawasaki's two-stroke delivers savage, peaky power that'll punish anyone who isn't fully committed — this thing hits hard mid-range and doesn't apologize for it. Engine condition is everything here. Pull the pipe and inspect the power valve before handing over cash. If the previous owner raced it hard and skipped rebuilds, you're buying someone else's expensive problem. That said, a well-maintained example is genuinely special. The chassis is razor-sharp, the suspension components are quality stuff that takes tuning well, and parts availability remains solid. Check the swingarm bearings, linkage bearings, and reed cage — these are the spots where deferred maintenance hides. A compression test is non-negotiable. Low numbers mean a top-end job minimum, and potentially worse.

Pros
Contras
Omitir si: You're new to dirt bikes or motocross

Top 10 Accessories

Curated picks for the Kawasaki Kx 250 — owned, ridden, recommended.

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Problemas comunes

🔥 2 CRITICAL
🔥Top end wear, piston and rings SERIOUS

Pull plug, check compression, listen for rattle

Fix cost: $150-$400
⚠️Reed valve deterioration reduces power MODERATE

Inspect reeds for cracks or bent petals

Fix cost: $30-$80
⚠️Power valve carbon buildup MODERATE

Remove cover, check valve moves freely, no carbon

Fix cost: $0-$50
🔥Transmission bearing failure from neglect SERIOUS

Feel for notchy shifting, listen for grinding noise

Fix cost: $300-$700

Lista de verificación previa a la compra

Ask for full maintenance history records
Cold start test reveals true engine health
Inspect frame for cracks near steering head
Check swingarm and linkage bearings for play

Reliable if maintained, punishing if neglected

Full Specifications

Engine Power Approximately 40–42 hp @ 13,000 rpm (2020+ 4-stroke model; earlier 2-stroke models varied)
Torque Approximately 28–30 Nm @ 10,500 rpm (2020+ 4-stroke model; estimate)
Top Speed Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed)
Weight 110 kg (curb weight, 2020+ model)
Fuel Consumption Estimated 6–8 L/100km (note: varies greatly depending on riding intensity; off-road/motocross use makes precise figures difficult to standardize)
Type Motocross
Fairing No Fairing (Naked)

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Community Reviews

Discussion

Frequently Asked Questions

What are common problems with the Kawasaki Kx 250? +

Top end wear, piston and rings: Pull plug, check compression, listen for rattle (serious) | Reed valve deterioration reduces power: Inspect reeds for cracks or bent petals (moderate) | Power valve carbon buildup: Remove cover, check valve moves freely, no carbon (moderate)

Is the Kawasaki Kx 250 a good motorcycle? +

Buy it right and you'll grin every single lap. Rating: 8.2/10. Best for: Experienced motocross riders wanting competitive two-stroke performance. Avoid if: You're new to dirt bikes or motocross.

What is the horsepower of the Kawasaki Kx 250? +

The Kawasaki Kx 250 produces Approximately 40–42 hp @ 13,000 rpm (2020+ 4-stroke model; earlier 2-stroke models varied), with Approximately 28–30 Nm @ 10,500 rpm (2020+ 4-stroke model; estimate) of torque. Top speed: Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed).

Is the Kawasaki Kx 250 good for beginners? +

Yes — the Kawasaki Kx 250 is a reasonable choice for new riders (40 hp is manageable), weighing 110 kg. Experienced motocross riders wanting competitive two-stroke performance

Is the Kawasaki Kx 250 reliable? +

Owners report 2 critical issues to watch for on the Kawasaki Kx 250, notably: Top end wear, piston and rings (Pull plug, check compression, listen for rattle). Buy with a pre-purchase inspection.

Is the Kawasaki Kx 250 good for daily use? +

Experienced motocross riders wanting competitive two-stroke performance Fuel: Estimated 6–8 L/100km (note: varies greatly depending on riding intensity; off-road/motocross use makes precise figures difficult to standardize).

How fast is the Kawasaki Kx 250? +

The Kawasaki Kx 250 reaches a top speed of Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed), producing 40 hp at 110 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.

What gear should I buy for a Kawasaki Kx 250? +

Motoryk has curated a Top 10 gear list specifically for the Kawasaki Kx 250, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/kawasaki/kx-250/top10. Each pick is matched to this bike's spec.