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Reviews/ Ktm/ Sx-f 350
WATCH REVIEW
8.5/10 Motocross

Ktm Sx-f 350 Review

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

Intermediate to expert riders wanting maximum performance $5,500-$9,500 used 2016-2023
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Key Specs

speed
Top Speed
~175 km/h (estimated; top speed is not a primary design focus for motocross bikes)
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Power
~63 hp
@ 10,800 rpm (2023 model estimate)
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Torque
~42 Nm
@ 8,500 rpm (2023 model estimate)
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Fuel Economy
16.7 km/L
39 mpg · ~6.0 L/100km (estimate — varies greatly with riding intensity; note: motocross bikes are rarely measured by fuel economy)
build
Service Every
15 hours oil change / 135 hours piston
scale
Weight
101 kg
(without fuel, as stated by KTM for recent models; approximately 106 kg wet)
settings
Engine
349.7cc single-cylinder DOHC 4-stroke
height
Seat Height
960 mm
cog
Transmission
5-speed
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Used Buyer Review

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

+Exceptional power-to-weight ratio
+Razor-sharp chassis handling
+Strong resale value retention
+Best of both displacements
+Lightweight for big power

Cons

-Brutal maintenance schedule costs
-Punishing for beginner riders
-Neglected examples are expensive
-WP suspension needs frequent servicing
warning
Avoid if

You skip service intervals or ride occasionally

description View full specs, facts & rivals for Ktm Sx-f 350 →

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