2026 KTM 300 SX Base

2026 KTM 300 SX Base

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Exterior Colors:

  • Year 2026
  • Make KTM
  • Model 300 SX
  • Engine 1-cylinder, 2-stroke engine
2026 KTM 300 SX Base

2026 KTM 300 SX Base

2026 KTM 300 SX

IT'S HUNTING SEASON

When it comes to power-to-weight ratios, the KTM 300 SX writes the rule book. Now with learnings taken directly from the KTM Factory Racing teams, and a care package labeled ""Go get 'em!"", the KTM 300 SX is engineered for one task alone - to lead from the front.

Features may include:

Before The Gate
  • 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 option allows riders to adjust high- and low-speed settings in a matter of seconds. The forks on the front end are also easily modified thanks to hand-adjustable clickers on the bottom of the fork shoe and top cap.

Start Strong
  • EFI + Power Valve

With EFI comes great rideability. Along with the electronic fuel injection and a power valve on the KTM SX models, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!

Calm Under Fire
  • Absolute Control

Get ready for a full-on berm assault. The KTM SX and SX-F machines received major frame updates directly from KTM Factory Racing efforts. For starters, the area around the rear shock mount is streamlined, with engine mounts and cut-outs for improved chassis flex. The front area of the frame has an optimum wall thickness with renewed engine mounts.

Hit The Big Stuff
  • WP XACT Fork

Let's get the technical parts out of the way first; the 48 mm WP XACT AER forks fitted to the KTM SX and SX-F line-up features a capsulated air spring and pressurized oil chamber for progressive and consistent damping, while oil and air bypasses reduce pressure peaks. In combination with the mid-valve damping system, all this provides exceptional feedback and rider comfort. The fork also has settings which not only compliment the frame and rear linkage, but ensures stellar performance at all levels. Speaking of settings, these are easily adjusted via a single air pressure pre-load valve, as well as easy-access click adjusters for compression and rebound. Additionally, the WP air pump needed to adjust the fork's air pressure is provided as standard in the buy-pack.

Maintaining Momentum
  • Energy absorption

Besides the expertly crafted, hydro-formed, laser-cut, and robot-welded frame being engineered to provide exceptional rider feedback and straight-line stability, the chassis 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

Engine 1-cylinder, 2-stroke engine
Displacement 293.2 cm³
Stroke 5-speed
Cylinder Liners Single cylinder
Emissions 2-Stroke

Fuel System

Fuel System Fuel-mixture generation: Keihin EFI, throttle body 39 mm

Drivetrain

Transmission 5-speed
Primary Drive 26:72
Clutch Wet, DDS multi-disc clutch, Brembo hydraulics | Type: DDS multi-disc wet clutch | Primary drive teeth: 72 | Operation: Brembo hydraulics

Chassis

Chain Type 520, Non-sealed
Frame Type Central double-cradle-type 25CrMo4 steel | Rear subframe design: Aluminum-reinforced polyamide

Suspension

Front Suspension WP XACT-USD (AER), Ø 48 mm
Rear Suspension WP XACT Monoshock with linkage
Front Travel (in./cm.) 310 mm
Rear Travel (in./cm.) 300 mm

Brakes

Front braking system Disc brake
Rear braking system Disc brake

Dimensions

Ground Clearance 354 mm
Seat Height 958 mm

Capacities

Fuel Capacity Tank (approx.): 7.2 l

Product Photography