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ID # 34200817

2025 KTM 350 SX-F

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Overview
With over a decade of racing - and winning - under its seat, the KTM 350 SX-F has long shed its underdog label and proven itself a worthy adversary. Delivering usable power throughout the rev range, unwavering stability at speed, and true championship-winning credentials, the 2025 KTM 350 SX-F is once again READY TO RACE.

 

Specifications
Model
SX-F
Category Name
Motorcycles
Year
2025
Sale Type
New
Manufacturer
KTM
before the gate

2025 KTM 350 SX F Easy Suspension Adjustment

As always, the suspension boasts an easy tool-free setup at both ends, ensuring you chase down the podium in total control. On the rear, a hand-adjustable dual compression control allows riders to adjust high- and low-speed settings in a matter of seconds. The forks on the front end are also easily adjusted thanks to hand-adjustable clickers on the bottom of the fork shoe and top cap.

2025 KTM 350 SX F Air filter box

Designed to provide maximum airflow, the air filter box is designed with precisely positioned inlet ducts aimed at preventing air deformation and maintaining filter protection. The Twin Air filter and air filter support design feature a simple fail-proof mounting system for secure and accurate filter installation, ensuring the air filter is easily accessed, without tools, by removing the left side panel, for easy track-side maintenance. A vented air filter box cover is also included for all SX and SX-F models in the by-pack. 

2025 KTM 350 SX F Serviceability

The 2025 KTM SX and SX-F range is engineered and designed to provide riders with easy-to-access service parts, as well as suspension adjustability. This allows faster track-side and off-season maintenance, as well as making motocross more accessible for novice riders without pit crews.

start strong

2025 KTM 350 SX F More Usable Power

Perfectly filling the gap with the KTM 250 SX-F and the powerhouse KTM 450 SX-F, the lightweight KTM 350 SX-F powerplant weighs in at only 60.6 lb (27.5 kg). This makes it the ultimate weapon when weighing up power to weight options. 

2025 KTM 350 SX F Launch Control & Quickshifter

Launch control, ENGAGED! Designed for the holeshot, the 2025 KTM SX-F range comes standard with launch control and Quickshifter function, allowing for fast upshifts without using the clutch. Launch control is easily engaged by pressing the traction control and Quickshifter buttons simultaneously and works by limiting the amount of power to the rear wheel, improving traction, and preventing loss of control under hard acceleration. Meanwhile, the Quickshifter function means you can bang through from 2nd to 5th gear with your focus solely on the first corner.

2025 KTM 350 SX F Selectable Maps + TC

The map select switch on the 2025 KTM SX models features a simpler design, allowing for easier functionality in switching between 2 engine maps. Map 1 provides a more linear power curve. while map 2 punches all-out with aggressive throttle and explosive power. Luckily, Traction control is easy toggled to an on or off position from the same switch, ensuring maximum traction and a distinct advantage in wet or muddy conditions.

calm under fire

2025 KTM 350 SX F Absolute Control

Get ready for a full-on berm assault. The 2025 KTM SX and SX-F machines have received major frame updates directly from Factory Racing efforts. For starters, the frame area around the rear shock mount has been updated and made more streamlined, with new engine mounts and cut-outs for improved chassis flex. The front area of the frame is also updated. with a different wall thickness than the previous model year, with renewed engine mounts. This adds up to a 300g weight saving and improved flex for better cornering.

2025 KTM 350 SX F Ergonomics

Upgraded tank shrouds using bi-compound plastics channel air towards the radiators more efficiently, while a new fuel tank roll, makes for a tighter, more secure fitment, reducing the chance of frame scrubbing and dramatically improving durability. All this works alongside the specially-developed rider triangle, to provide unmatched knee contact and gripping surfaces - especially when standing on the pegs.

2025 KTM 350 SX F Performance

The 2025 KTM 350 SX-F engine is positioned for optimal mass centralization and an overall lightweight feel, benefiting handling and anti-squat behavior. The silencer offers incredible response in combination with the mapping switch and provides a slightly quieter exhaust note.

hit the big stuff

2025 KTM 350 SX F Updated Suspension Settings

For 2025, the KTM SX and SX-F range has given the WP XACT AER fork and WP XACT rear shock an update. This means you'll be lining up at the starting gate with re-tuned settings, reduced weight, improved weight distribution, and an increase in overall response.

2025 KTM 350 SX F WP XACT Fork 

48mm air type WP XACT front fork with a split damping function provides all the confidence you need to attack the track. Hydrostops in the fork legs improves bottoming-out resistance and account for less rebound when attacking big jumps, bumps, and thumps. Redesigned fork protection rings also increase protection against dirt, making them as reliable as they are awesome.

2025 KTM 350 SX F WP XACT Shock 

Keeping things in check at the rear, the WP XACT rear shock has also undergone some changes for 2025 using settings directly from the KTM Factory Racing Teams The improved frame and shock geometry mean more ground clearance at the linkage, making it less susceptible to bottoming out. While we're on the topic, smaller diameter linkage bolts save weight, while new linkage seals refine rear shock response and advanced damping characteristics.

2025 KTM 350 SX FStability

An upgraded rear brake pedal finds its way onto the 2025 KTM Motocross range, adding additional stiffness, bending resistance and braking feel to the overall package. At the other end, a forged steering head connection and CNC-milled triple clamps, make for the perfect alignment of the fork tubes. This precise geometry of the fork clamps ensures highly responsive and smooth fork action – not to mention unwavering stability when charging across ruts and onto the podium. 

2025 KTM 350 SX FMass Centralization

Ready to rip your arms out of the sockets? Together with the benefits of mass centralization and overall reduced weight, the anti-squat behavior of the chassis is significantly improved by changing the backbone of the steel frame concept. In layman's terms, the 2025 KTM 350 SX-F gets its power down perfectly when tearing out of corners. 

2025 KTM 350 SX FTires

Getting power hooked into the dirt is a tough job. However, hours of research and testing have led the 2025 KTM Motocross range to the Dunlop GEOMAX MX34. Providing unmatched stability and control at the highest level, these rubber hoops feature a new carcass and rubber compound that improves damping and absorption, maintaining performance up to 30% longer. New Progressive Cornering Block Technology also improves grip in the berms, while a new rear pattern with 11% taller and 44% wider center block for increased traction and control everywhere else. Lastly, this unique block arrangement works to dispel mud buildup, ensuring traction in even the muddiest of track conditions. 

maintaining momentum

2025 KTM 350 SX F Connectivity Unit Offroad

Available as a PowerPart on the KTM SX-F range, the Connectivity Unit Offroad - or CUO for short - offers a wide range of functionalities and adjustability options via the KTMconnect app. The CUO gives you a new insight into your riding, allows you to alter your engine behavior, and even provides you with optimized suspension settings based on individual preferences and riding conditions. Welcome to the next level moto. 

2025 KTM 350 SX F Ground clearance 

No one enjoys a bad hook-up. Good thing, then that the shock absorber geometry on the 2025 KTM 350 SX-F improves ground clearance of the linkage, with the topology-optimized die-cast footpegs being less susceptible to hooking on deep ruts, and take-offs when scrubbing. 

2025 KTM 350 SX F Consistency

 A new chain guide and chain guard result in improved durability and minimize the chances of hooking on external objects - especially in extremely muddy conditions while reducing dirt build-up around the swingarm and rear sprocket.

2025 KTM 350 SX FEnergy absorption

Besides the expertly crafted, hydro-formed, laser-cut, and robot-welded frame being engineered to provide exceptional rider feedback and straight-line stability, it consists of specifically calculated parameters of longitudinal and torsional flex. This means the frame acts as a "shock absorber" of sorts, making for a less harsh ride, resulting in less rider fatigue over many hard laps.

engine technical details
EMS
Keihin EMS
BORE
88 mm
CLUTCH
Wet multi-disc DS clutch, Brembo hydraulics
DESIGN
1-cylinder, 4-stroke engine
STROKE
57.5 mm
STARTER
Electric starter
DISPLACEMENT
349.7 cm³
TRANSMISSION
5-speed
COMPRESSION RATIO
14.6
FUEL-MIXTURE GENERATION
Keihin EFI, throttle body 44 mm
chassis technical details
CHAIN
520, Non-sealed
WHEELS
Spoked wheels with aluminium rims
SILENCER
Aluminium
HANDLEBAR
Neken, aluminium Ø 28/22 mm
WHEELBASE
1493 mm
REAR BRAKE
Disc brake
FRONT BRAKE
Disc brake
SEAT HEIGHT
958 mm
FRAME DESIGN
Central double-cradle-type 25CrMo4 steel
REAR SUSPENSION
WP XACT Monoshock with linkage
FRONT SUSPENSION
WP XACT-USD (AER), Ø 48 mm
GROUND CLEARANCE
343 mm
STEERING HEAD ANGLE
63.9 °
REAR SUBFRAME DESIGN
Aluminum-reinforced polyamide
WEIGHT (WITHOUT FUEL)
101.9 kg
TANK CAPACITY (APPROX.)
7.2 l
REAR BRAKE DISC DIAMETER
220 mm
SUSPENSION TRAVEL (REAR)
300 mm
FRONT BRAKE DISC DIAMETER
260 mm
SUSPENSION TRAVEL (FRONT)
310 mm