KTM 450 SX-F
Finance AvailableOur Price: £9199 +OTR
WAS £10,999 SAVE £1,8000% finance up to 24 months, 3% up to 36 months
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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FEATURES
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.
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
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.
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.
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
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.
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
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.
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.
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
FINANCE
HP (Hire Purchase)
MONTHLY PAYMENT
Preferred Deposit
Preferred Term
Terms & Conditions (HP)
Cash Price £9248.00. Total Deposit .
Total Amount of Credit . Payments of .
Duration of Agreement is . Fees of £1.00 are included
in the payments shown. Total Amount Payable is . Annual
Fixed Interest Rate of
%. Actual rate will be adjusted to include the deferred final payment. APR
%.
T&Cs apply. Subject to status. 18s and over. Guarantee may be required. Santander Consumer Finance RH1 1SR. This quotation, available through Santander Consumer Finance, is valid for 14 days from 29/08/2019. This is not a personal quotation and does not commit Santander Consumer Finance to enter into an agreement with you. Be sure you can afford the repayments before entering into a credit agreement. Santander Consumer (UK) PLC t/a Santander Consumer Finance is authorised and regulated by the Financial Conduct Authority in respect of agreements regulated by the Consumer Credit Act 1974 and for general insurance mediation activity. Authority under firm reference number is 444327.
At the end of the agreement there are 3 options: (i) Part exchange the vehicle. (ii) Pay the Optional Final Payment to own the vehicle or (iii) Return the vehicle. Further charges may be made subject to the condition or mileage of the vehicle.
VIDEOS
450 SX-F
TECHNICAL DETAILS
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
KTM 450 SX-F ACCESSORIES
