THE TOP OF THE FOODCHAIN

KTM 450 SX-F

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KTM 450 SX-F

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We aren't ones to brag, but with a trophy cabinet ready to rip at the seams, the KTM 450 SX-F is the epitome of a podium hunter. With 5 AMA 450 supercross titles in the last 7 seasons, the 2023 KTM 450 SX-F rolls into the paddock already armed with the learnings of past championships - and an all-new arsenal of weaponry. It's time to extend the trophy room.
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    PHO_BIKE_PERS_REHI_SX-450F-MY23-rear-right_#SALL_#AEPI_#V1.png
    PHO_BIKE_PERS_LIHI_SX450F-MY23-rear-left_#SALL_#AEPI_#V1.png
    PHO_BIKE_90_LI_SX-450F-MY23-90-left_#SALL_#AEPI_#V1.png
    PHO_BIKE_PERS_LIVO_SX-450F-MY23-front-left_#SALL_#AEPI_#V1.png
    PHO_BIKE_PERS_REVO_SX-450F-MY23-front-right_#SALL_#AEPI_#V1.png
We aren't ones to brag, but with a trophy cabinet ready to rip at the seams, the KTM 450 SX-F is the epitome of a podium hunter. With 5 AMA 450 supercross titles in the last 7 seasons, the 2023 KTM 450 SX-F rolls into the paddock already armed with the learnings of past championships - and an all-new arsenal of weaponry. It's time to extend the trophy room.
  1. Before The Gate
  2. Start Strong
  3. Calm Under Fire
  4. Hit The Big Stuff
  5. Maintaining Momentum
Before The Gate

01. Before The Gate

CLICK INTO ACTION
CLICK INTO ACTION

Easy Suspension Adjustment

Get dialed in! The 2023 KTM SX range boasts totally tool-free suspension setup at both ends. Thanks to an all-new shock absorber design featuring hand-adjustable dual compression control, it allows riders to adjust high- and low-speed settings in a matter of seconds. On the front end, the forks are also easily adjusted thanks to a single air pressure preload valve, as well as through easy access click adjusters for compression and rebound. We'll even throw the air pump in as standard.

BREATHE EASY
BREATHE EASY

Air filter box

Designed to provide maximum airflow, the new 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 safe 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.

LESS FOCUS ON THE TOOL, MORE FOCUS ON THE TRACK
LESS FOCUS ON THE TOOL, MORE FOCUS ON THE TRACK

Serviceability

The 2023 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.

Before The Gate
CLICK INTO ACTION
CLICK INTO ACTION

Easy Suspension Adjustment

Get dialed in! The 2023 KTM SX range boasts totally tool-free suspension setup at both ends. Thanks to an all-new shock absorber design featuring hand-adjustable dual compression control, it allows riders to adjust high- and low-speed settings in a matter of seconds. On the front end, the forks are also easily adjusted thanks to a single air pressure preload valve, as well as through easy access click adjusters for compression and rebound. We'll even throw the air pump in as standard.
CLICK INTO ACTION
Before The Gate
BREATHE EASY
BREATHE EASY

Air filter box

Designed to provide maximum airflow, the new 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 safe 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.
BREATHE EASY
Before The Gate
LESS FOCUS ON THE TOOL, MORE FOCUS ON THE TRACK
LESS FOCUS ON THE TOOL, MORE FOCUS ON THE TRACK

Serviceability

The 2023 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.
LESS FOCUS ON THE TOOL, MORE FOCUS ON THE TRACK
Start Strong

02. Start Strong

UNMATCHED PERFORMANCE
UNMATCHED PERFORMANCE

More Usable Power

When the war drums sound and the gate drops, you need to be the first to off the line in a bid to rule the roost. The 2023 KTM 450 SX-F boasts one of the most manic 4-stroke powerplants in the paddock, with its SOHC engine proving to be the perfect example of advanced engineering. With a peak power output of over 63 HP, and an overall engine weight of only 26.8 kg, you'll leave the competition with more than a little mud on the face.

DROP THE CLUTCH
DROP THE CLUTCH

Launch Control & Quickshifter

Launch control, ENGAGED! Designed for the holeshot, the 2023 KTM SX-F range comes standard with launch control and a new 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.

TOTAL TRACTION
TOTAL TRACTION

Selectable Maps + TC

The map select switch on the 2023 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.

Start Strong
UNMATCHED PERFORMANCE
UNMATCHED PERFORMANCE

More Usable Power

When the war drums sound and the gate drops, you need to be the first to off the line in a bid to rule the roost. The 2023 KTM 450 SX-F boasts one of the most manic 4-stroke powerplants in the paddock, with its SOHC engine proving to be the perfect example of advanced engineering. With a peak power output of over 63 HP, and an overall engine weight of only 26.8 kg, you'll leave the competition with more than a little mud on the face.
UNMATCHED PERFORMANCE
Start Strong
DROP THE CLUTCH
DROP THE CLUTCH

Launch Control & Quickshifter

Launch control, ENGAGED! Designed for the holeshot, the 2023 KTM SX-F range comes standard with launch control and a new 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.
DROP THE CLUTCH
Start Strong
TOTAL TRACTION
TOTAL TRACTION

Selectable Maps + TC

The map select switch on the 2023 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.
TOTAL TRACTION
Calm Under Fire

03. Calm Under Fire

SLEEKER FOR YOU TO SCRUB CLEANER
SLEEKER FOR YOU TO SCRUB CLEANER

Absolute Control

No matter how gnarly the track is, you'll stay in complete control thanks to an all-new frame design that has not only been engineered for longitudinal rigidity but also repositions rotating mass closer to the center of gravity. A new shock mounting also provides improved anti-squat behavior to better traction out of corners, while the footpeg mounting position has moved inwards for less risk of hooking up in deep ruts or when scrubbing jumps.

FLUID RIDER MOTION
FLUID RIDER MOTION

Ergonomics

The 2023 KTM SX and SX-F range feature an entirely new and improved rider triangle, providing improved knee contact - especially when standing on the pegs - with improved gripping surfaces all around. New plastics work to expel mud buildup in wet, muddy conditions, with a new, flatter seat profile and high grip seat cover providing exceptional rider movement and control. The polyamide reinforced aluminum subframe further enhances rider feel and feedback.

UNMATCHED PERFORMANCE
UNMATCHED PERFORMANCE

Performance

The 2023 KTM 450 SX-F engine is tilted 2° backward, resulting in a 3mm lower front sprocket position. All of this means greatly improved mass centralization and reduced overall weight, benefiting handling and anti-squat behavior.

Calm Under Fire
SLEEKER FOR YOU TO SCRUB CLEANER
SLEEKER FOR YOU TO SCRUB CLEANER

Absolute Control

No matter how gnarly the track is, you'll stay in complete control thanks to an all-new frame design that has not only been engineered for longitudinal rigidity but also repositions rotating mass closer to the center of gravity. A new shock mounting also provides improved anti-squat behavior to better traction out of corners, while the footpeg mounting position has moved inwards for less risk of hooking up in deep ruts or when scrubbing jumps.
SLEEKER FOR YOU TO SCRUB CLEANER
Calm Under Fire
FLUID RIDER MOTION
FLUID RIDER MOTION

Ergonomics

The 2023 KTM SX and SX-F range feature an entirely new and improved rider triangle, providing improved knee contact - especially when standing on the pegs - with improved gripping surfaces all around. New plastics work to expel mud buildup in wet, muddy conditions, with a new, flatter seat profile and high grip seat cover providing exceptional rider movement and control. The polyamide reinforced aluminum subframe further enhances rider feel and feedback.
FLUID RIDER MOTION
Calm Under Fire
UNMATCHED PERFORMANCE
UNMATCHED PERFORMANCE

Performance

The 2023 KTM 450 SX-F engine is tilted 2° backward, resulting in a 3mm lower front sprocket position. All of this means greatly improved mass centralization and reduced overall weight, benefiting handling and anti-squat behavior.
UNMATCHED PERFORMANCE
Hit The Big Stuff

04. Hit The Big Stuff

HARNESSING GRAVITY
HARNESSING GRAVITY

Mass 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 2023 KTM 450 SX-F gets its power down perfectly when tearing out of corners.

UNFLAPPABLE FRONT END
UNFLAPPABLE FRONT END

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. New hydrostops in the fork legs improve 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.

RACING ON RAILS

Stability

The 2023 KTM 450 SX-F is rock-solid at any speed thanks to a repositioned and forged steering head connection and CNC milled triple clamps. Made from high-grade aluminum, these feature optimally tuned steering stem stiffness, perfect alignment of the fork tubes, and precise geometry of the fork clamps to ensure highly responsive and smooth fork action - not to mention unwavering stability when charging across ruts and onto the podium.

Hit The Big Stuff
HARNESSING GRAVITY
HARNESSING GRAVITY

Mass 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 2023 KTM 450 SX-F gets its power down perfectly when tearing out of corners.
HARNESSING GRAVITY
Hit The Big Stuff
UNFLAPPABLE FRONT END
UNFLAPPABLE FRONT END

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. New hydrostops in the fork legs improve 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.
UNFLAPPABLE FRONT END
Hit The Big Stuff
RACING ON RAILS

Stability

The 2023 KTM 450 SX-F is rock-solid at any speed thanks to a repositioned and forged steering head connection and CNC milled triple clamps. Made from high-grade aluminum, these feature optimally tuned steering stem stiffness, perfect alignment of the fork tubes, and precise geometry of the fork clamps to ensure highly responsive and smooth fork action - not to mention unwavering stability when charging across ruts and onto the podium.
Maintaining Momentum

05. Maintaining Momentum

UNOBTRUSIVE IMPACT
UNOBTRUSIVE IMPACT

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, 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.

NOTHING TO HOLD YOU BACK
NOTHING TO HOLD YOU BACK

Ground clearance

No one enjoys a bad hook-up. Luckily, the all-new frame and shock absorber geometry on the 2023 KTM 450 SX-F improve ground clearance of the linkage, with all-new topology optimized die-cast footpegs that are less susceptible to hooking on deep ruts, and take-offs when scrubbing.

PRECISE, LAP AFTER LAP
PRECISE, LAP AFTER LAP

Consistency

A new WP XACT shock absorber provides unmatched consistency lap after lap, thanks to low-friction SKF linkage seals and advanced damping characteristics for unsurpassed traction and energy absorption.

Maintaining Momentum
UNOBTRUSIVE IMPACT
UNOBTRUSIVE IMPACT

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, 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.
UNOBTRUSIVE IMPACT
Maintaining Momentum
NOTHING TO HOLD YOU BACK
NOTHING TO HOLD YOU BACK

Ground clearance

No one enjoys a bad hook-up. Luckily, the all-new frame and shock absorber geometry on the 2023 KTM 450 SX-F improve ground clearance of the linkage, with all-new topology optimized die-cast footpegs that are less susceptible to hooking on deep ruts, and take-offs when scrubbing.
NOTHING TO HOLD YOU BACK
Maintaining Momentum
PRECISE, LAP AFTER LAP
PRECISE, LAP AFTER LAP

Consistency

A new WP XACT shock absorber provides unmatched consistency lap after lap, thanks to low-friction SKF linkage seals and advanced damping characteristics for unsurpassed traction and energy absorption.
PRECISE, LAP AFTER LAP

Technical Details

Engine

  • Transmission 5-speed
  • Starter Electric starter
  • Stroke 63.4 mm
  • Bore 95 mm
  • Clutch Wet, DDS multi-disc clutch, Brembo hydraulics
  • Displacement 449.9 cm³
  • EMS Keihin EMS
  • Design 1-cylinder, 4-stroke engine

Chassis

  • Weight (without fuel) 102.6 kg
  • Tank capacity (approx.) 7.2 l
  • Front brake disc diameter 260 mm
  • Rear brake disc diameter 220 mm
  • Front brake Disc brake
  • Rear brake Disc brake
  • Chain 520, Non-sealed
  • Frame design Central double-cradle-type 25CrMo4 steel
  • Front suspension WP XACT-USD, Ø 48 mm
  • Ground clearance 343 mm
  • Rear suspension WP XACT Monoshock with linkage
  • Seat height 958 mm
  • Steering head angle 63.9 °
  • Suspension travel (front) 310 mm
  • Suspension travel (rear) 300 mm