350 SX-F - 2020


350 SX-F - 2020 Promotions

Model Description

The KTM 350 SX-F continues to deliver a dominant mix of horsepower and agility. It has an exceptional power-to-weight ratio with torque similar to that of a 450, without losing its 250-like agility. When you're looking for more than one advantage, this powerful, lightweight racer combines all your needs into one dominant package with serious championship pedigree to back it up.
The KTM 350 SX-F is fitted with an E-starter as standard, which gives the rider an undisputed advantage when the going gets tough in the heat of battle. As a result of the starter motor from Mitsuba and the well-proven starter drive, the engine starts easily and reliably every time.
The design of the balancer shaft is evidence of the amazing innovative power of KTM – it has a variety of functions, such as balancing out mass forces while at the same time driving the coolant pump and the timing chain.

The KTM 350 SX-F delivers power from the engine to the rear wheel via a reworked 5-speed transmission, which offers the additional benefits of maximum durability and reliability. KTM's advanced No-Dirt technology is used for the gear shift lever to prevent mud and dirt from fouling the lever joint and thus guarantees reliable gear changing at all times. All 4-stroke engines are equipped with a gear position sensor to be able to select a different engine power curve in each gear.
The KTM 350 SX-F is equipped with a lightweight DS (diaphragm steel) clutch with a one-piece outer clutch hub and a primary gear made of high strength billet steel. This guarantees unbeatable reliability and, due to its compact, rivetless construction, results in a compact engine design. Extremely heat-resistant steel clutch plates ensure smooth disengagement of the clutch. Fitted with a diaphragm spring, very little force is required to operate the clutch. The Brembo hydraulic system also ensures easy and precise action.

The centerpiece of the compact DOHC engine is a cutting-edge cylinder head, featuring two overhead camshafts driving titanium valves via super lightweight cam followers with a hard DLC (Diamond-Like Carbon) coating. The maximized flow rate delivers an optimized power curve for outstanding performance curve throughout the entire rpm range to its maximum of 13,400 rpm. The engine generates maximum output of 57 bhp.

A short connecting rod is used for the stiff crankshaft of the KTM 350 SX-F, which contributes to the engine's compact dimensions and low weight and also to its snappy power delivery. A plain big (bottom) end bearing with two force-fitted shelves runs directly on the crank pin – a major prerequisite for the extremely high revs and the unrivaled maximum power delivered by the 350cc engine. This design increases the engine's service life and results in long crankshaft service intervals, which brings down costs, time and effort for the rider.

The compact engine of the KTM 350 SX-F weighs in at a mere 26.6 kg. With its proven DOHC cylinder head, and more power than ever before. Its powerful engine characteristics are due among other things to the lightweight titanium valves and DLC (Diamond-Like Carbon) coated cam followers. It also comes with state-of-the-art electronic fuel injection and an E-starter, and features a wide rpm range, excellent performance and incredibly good rideability.

The lower weight and a very centralized shaft configuration is due in part to the design of the die-cast engine case. This has resulted in a short and compact single-cylinder engine with excellent centralization of masses. The modern surface structure of the covers is designed to reduce wear caused by the rider's boots.
The state-of-the-art Keihin engine management system with electronic fuel injection features a 44 mm throttle body. As a result of the innovative positioning of the injector, the engine responds immediately, delivers enormous power and guarantees perfect atomization of the fuel with the upstreaming air. There are also separate systems available for cold start and idle adjustments. The control unit always provides an optimal fuel supply and ignition timing. In addition, it regulates the traction and launch control functions. There are also different maps available for specific power curves depending on which gear is currently engaged. This  information is provided by the gear position sensor.
Inside the short-stroke cylinder, which has a bore of 88 mm, there is a forged bridged box-type piston produced by CP. The piston crown geometry has been adapted perfectly to the combustion chamber and the high compression ratio of 14:1. It features a particularly rigid structure, combined with low weight. The engine delivers an extremely lively performance due to the low oscillating masses.

Model Specification


Engine Type

Single cylinder, 4-stroke


349.7 cc


Electric starter / Lithium Ion 12V 2.2Ah


5 gears


Wet multi-disc clutch, Brembo hydraulics



Central double-cradle type


5/8 x 1/4

Steering Head Angle

63.9 degrees

Tank Capacity

7 litres


Brake System Front

Disc brake 260 mm

Brake System Rear

Disc brake 220 mm


Front Suspension

XACT WP upside-down fork, 48 mm

Rear Suspension

XACT WP shock absorber with linkage

Suspension Travel Front

310 mm

Suspension Travel Rear

300 mm



88 mm


57.5 mm

Ground Clearance (unloaded)

370 mm

Seat Height

950 mm

Weight (No Fuel)

99.5 kg


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