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All Bikes/Ktm/Sx-f 350
Ktm Sx-f 350
Motocross

Ktm Sx-f 350

The Ktm Sx-f 350 has a top speed of ~175 km/h (estimated; top speed is not a primary design focus for motocross bikes), produces ~63 hp and weighs 101 kg. Motoryk rates it 8.5/10.

La KTM SX-F 350 se presentó en 2011 y fue desarrollada en colaboración con el piloto oficial de Red Bull KTM, Taddy Blazusiak, e inspirada en el deseo de crear una moto con una potencia de 450 niveles pero una maniobrabilidad de 250 niveles. Rápidamente se convirtió en un icono cuando Ryan Dungey ganó el campeonato de motocross AMA 450 de 2011 a bordo de la 350, lo que puso a prueba su concepto en las competiciones de élite. Sigue siendo una de las máquinas de motocross más famosas de KTM, ya que combina una agilidad ligera con una potencia de salida impresionante, única en su clase.

~63 hp

Potencia

~42 Nm

Torsión

101 kg

Peso

~175 km/h (estimated; top speed is not a primary design focus for motocross bikes)

Velocidad máxima

~6.0 L/100km (estimate — varies greatly with riding intensity; note: motocross bikes are rarely measured by fuel economy)

Combustible

Desnudo

Cuerpo

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Lo que los compradores deben saber

⚙️

Best Power-to-Weight

The 350 SX-F punches above its class with nearly 350cc power in a 250-weight chassis, giving riders a competitive edge in both 250 and 450 classes. This makes it uniquely versatile and highly sought after on the used market.

🔧

Watch Valve Intervals

The high-revving engine requires strict valve clearance checks every 15 hours of riding — neglected maintenance is the #1 cause of expensive top-end failures on used examples. Always ask for a documented service history before buying.

💰

Strong Resale Value

KTM SX-F 350s consistently hold strong resale value due to high demand and limited used supply, often selling for 80-90% of retail within the first year. Well-maintained examples rarely sit unsold for long.

Generaciones y especificaciones por año

2011–2012 Gen 1

Introdujo la plataforma de motocross de cuatro tiempos y 350 cc, que une las categorías 250 y 450 con un chasis ligero.

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2013–2015 Gen 2

Geometría del chasis revisada, varillaje de suspensión actualizado, mapeo del motor mejorado y mejoras en la inyección de combustible.

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2016–2018 Gen 3

Nueva estructura de acero cromado, suspensión WP actualizada, embrague hidráulico revisado, ergonomía y caja de aire mejoradas.

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2019–2022 Gen 4

Motor rediseñado con cabezal y puertos revisados, chasis nuevo, carrocería actualizada y control de lanzamiento agregado.

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2023–2025 Gen 5

Nuevo diseño de chasis, suspensión WP XACT revisada, componentes internos del motor actualizados, control de tracción y mapeo mejorados.

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Reseña de un comprador usado

8.5/10
Lo mejor para
Intermediate to expert riders wanting maximum performance

"The best motocrosser money can buy — if maintained religiously."

$5,500-$9,500 used

The 350 SX-F is KTM's sweet spot machine — punchy enough to embarrass bigger bikes out of corners, light enough to flick through rhythm sections without wanting to die. That 350cc engine is genuinely clever engineering: rev it like a 250, get 450 grunt on exit. Used examples can be absolute gold or complete nightmares depending on maintenance history, so bring a magnet and check the frame welds carefully. These things get flogged hard. Maintenance costs are real. Valve checks every 30 hours, piston every 80-100 if it's been ridden properly. Ask for service receipts — if the seller looks blank, walk away. Worn linkage bearings and tired suspension are your biggest used-market headaches. Budget another $500-800 for a full refresh on a high-hour bike. The WP suspension is decent but not Showa-level plush straight off the truck. For the right rider though, nothing else does what this does. It's the thinking man's motocrosser — technically demanding but enormously rewarding once you're dialed in.

Pros
Contras
Omitir si: You skip service intervals or ride occasionally

Top 10 Accessories

Curated picks for the Ktm Sx-f 350 — owned, ridden, recommended.

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Problemas comunes

🔥 2 CRITICAL
🔥Valve seat recession, tight valves SERIOUS

Cold start compression test, valve clearance interval records

Fix cost: $300-$800
🔥Nikasil cylinder plating wear SERIOUS

Bore scope cylinder wall, check for scoring or dullness

Fix cost: $400-$900
⚠️Piston and ring wear from skipped rebuilds MODERATE

Ask for rebuild history, pull plug look for oil burning

Fix cost: $200-$500
💡Worn linkage and suspension bearings MINOR

Rock rear wheel, check for slop in linkage pivot points

Fix cost: $100-$300

Lista de verificación previa a la compra

Demand full engine rebuild maintenance records
Cold start test, listen for top-end noise
Check frame for cracks near steering head
Inspect radiators for bends and coolant leaks

High performance, but demands strict maintenance schedules

Full Specifications

Engine Power ~63 hp @ 10,800 rpm (2023 model estimate)
Torque ~42 Nm @ 8,500 rpm (2023 model estimate)
Top Speed ~175 km/h (estimated; top speed is not a primary design focus for motocross bikes)
Weight 101 kg (without fuel, as stated by KTM for recent models; approximately 106 kg wet)
Fuel Consumption ~6.0 L/100km (estimate — varies greatly with riding intensity; note: motocross bikes are rarely measured by fuel economy)
Type Motocross
Fairing No Fairing (Naked)

Rivals & Alternatives

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Compare Ktm Sx-f 350 Side-by-Side

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Community Reviews

Discussion

Frequently Asked Questions

What are common problems with the Ktm Sx-f 350? +

Valve seat recession, tight valves: Cold start compression test, valve clearance interval records (serious) | Nikasil cylinder plating wear: Bore scope cylinder wall, check for scoring or dullness (serious) | Piston and ring wear from skipped rebuilds: Ask for rebuild history, pull plug look for oil burning (moderate)

Is the Ktm Sx-f 350 a good motorcycle? +

The best motocrosser money can buy — if maintained religiously. Rating: 8.5/10. Best for: Intermediate to expert riders wanting maximum performance. Avoid if: You skip service intervals or ride occasionally.

What is the horsepower of the Ktm Sx-f 350? +

The Ktm Sx-f 350 produces ~63 hp @ 10,800 rpm (2023 model estimate), with ~42 Nm @ 8,500 rpm (2023 model estimate) of torque. Top speed: ~175 km/h (estimated; top speed is not a primary design focus for motocross bikes).

Is the Ktm Sx-f 350 good for beginners? +

Not really — the Ktm Sx-f 350 is better for experienced riders. Intermediate to expert riders wanting maximum performance Avoid if: You skip service intervals or ride occasionally

Is the Ktm Sx-f 350 reliable? +

Owners report 2 critical issues to watch for on the Ktm Sx-f 350, notably: Valve seat recession, tight valves (Cold start compression test, valve clearance interval records). Buy with a pre-purchase inspection.

Is the Ktm Sx-f 350 good for daily use? +

Intermediate to expert riders wanting maximum performance Fuel: ~6.0 L/100km (estimate — varies greatly with riding intensity; note: motocross bikes are rarely measured by fuel economy).

How fast is the Ktm Sx-f 350? +

The Ktm Sx-f 350 reaches a top speed of ~175 km/h (estimated; top speed is not a primary design focus for motocross bikes), producing 63 hp at 101 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.

What gear should I buy for a Ktm Sx-f 350? +

Motoryk has curated a Top 10 gear list specifically for the Ktm Sx-f 350, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/ktm/sx-f-350/top10. Each pick is matched to this bike's spec.