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KTM 450 SX-F 2025


*2025 MODEL*

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KTM 450 SX-F
KTM 450 SX-F
KTM 450 SX-F

Description

When you see the 2025 KTM 450 SX-F roll off the trailer, you know it means business. With 5 AMA 450 Supercross titles in the last 7 seasons, the 2025 KTM 450 SX-F rolls up to the starting gate already armed with the learnings of past championships - only this time, it's freshly loaded with an all-new arsenal of weaponry.

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  • New Model

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Features

KTM 450 SX-F MORE USABLE POWER
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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 2025 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, and an overall engine weight of only 26.8 kg, you'll leave the competition with more than a little mud on the face.
KTM 450 SX-F LAUNCH CONTROL + QUICKSHIFTER
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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 fr
KTM 450 SX-F EASY SUSPENSION ADJUSTMENT
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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.
KTM 450 SX-F SERVICEABILITY
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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.
KTM 450 SX-F AIRBOX
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AIRBOX
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 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
KTM 450 SX-F SELECTABLE MAPS + TC
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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.
KTM 450 SX-F WP XACT FORK
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WP XACT FORK
Let's get the technical parts out of the way first; the 48 mm WP XACT AER forks fitted to the 2025 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 boasts new settings, which not only compliment the updated frame and rear linkage, but ensures stellar p
KTM 450 SX-F WP XACT SHOCK
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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.
KTM 450 SX-F ENERGY ABSORPTION
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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.
KTM 450 SX-F ABSOLUTE CONTROL
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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 fo

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2023 SX Range

2023 SX Range

Finance and Descriptions

  • Specifications

    Engine

    ENGINE TYPE
    1-cylinder, 4-stroke engine

    DISPLACEMENT
    449.9

    CERTIFICATION
    Euro 5

    CLUTCH
    Wet multi-disc DS clutch, Brembo hydraulics

    GEARBOX
    5 Speed

    FINAL DRIVE
    Chain

    COOLING SYSTEM
    Liquid cooled

    STARTING
    Electric

    Chassis

    FRAME
    Central double-cradle-type 25CrMo4 steel

    FRONT SUSPENSION
    WP XACT-USD (AER), Ø 48 mm

    FRONT BRAKE
    260 mm

    REAR SUSPENSION
    WP XACT Monoshock with linkage

    REAR BRAKE
    220 mm

    Dimensions

    GROUND CLEARANCE
    359 mm

    UNLADEN WEIGHT
    102.6

    USABABLE TANK VOLUME
    7.2 l

    SEAT HEIGHT
    958mm

  • OTR Payment Required
    This motorcycle must pay an On-The-Road (OTR) cost of £0. The OTR payment is essential for covering road usage and maintenance expenses. Please ensure that this fee is settled promptly to avoid any compliance issues.

£10999

Displacement

450cc

Gearbox

5 Speed

Minimum Licence

Q

Colours

Orange

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