Motocross · 4-stroke · MX1

KTM 450 SX-F

2027 · The reference. Still.

Supercross and MXGP titles on both sides of the Atlantic, and the platform every other 450 gets measured against. Available through NTG for teams and resellers, EU-wide.

€ 9 550net · excl. VAT · per unit

See how to order Technical details

2027 KTM 450 SX-F front three-quarter view

01.Before the gate

Setup, airbox and service access — the things that decide whether you're on the line ready or still in the pits.

3 features

Click into action

Easy suspension adjustment

Tool-free at both ends. The shock has hand-adjustable high- and low-speed compression, so a change takes seconds, not a session. Fork clickers sit on the shoe and the top cap, also by hand. You chase the setting between motos, not between weekends.

Breathe easy

Airbox

Inlet ducts are placed to keep the airflow undistorted and the filter protected. The Twin Air filter sits on a fail-proof mount and comes out without tools once the left side panel is off — a trackside filter swap is a two-minute job.

Less tool, more track

Serviceability

Service parts are placed where you can reach them and suspension is adjustable without a toolbox. Faster trackside and off-season maintenance for teams — and a bike a privateer can run without a crew.

02.Start strong

The strongest 450 engine in the class, launch control and a quickshifter — the first corner is yours to lose.

3 features

Unmatched performance

More usable power

The SOHC 449.9 cm³ engine is the benchmark for usable 450 power: broad, tractable, and brutal when asked. At 26.8 kg complete it is one of the lightest in the paddock, and you feel it every time the bike changes direction.

449.9cm³
26.8 kgengine
44 mmKeihin EFI

Drop the clutch

Launch control & quickshifter

Press traction control and quickshifter together and launch control is armed: rear-wheel power is metered off the gate so the bike drives instead of spinning. From there the quickshifter takes 2nd to 5th clutchless. Both standard.

Total traction

Selectable maps + TC

Map 1 is linear and forgiving. Map 2 is the full hit — aggressive throttle, explosive delivery. Traction control toggles on or off from the same switch, which is the difference between a good and a bad afternoon when the track turns to mud.

03.Calm under fire

A frame developed with KTM Factory Racing input — flex where you want it, none where you don't.

3 features

Sleeker to scrub cleaner

Absolute control

Revised frame with factory input: a streamlined shock-mount area, optimised engine mounts and cut-outs for controlled chassis flex, and tuned wall thickness at the front. It's built for a full-on berm assault, not a Sunday cruise.

Fluid rider motion

Ergonomics

Bi-compound tank shrouds feed the radiators and give real knee grip when you're standing. A tighter fuel-tank roll means less frame scrubbing — bodywork that lasts a season, not a month — and a rider triangle that keeps you locked in on the pegs.

Unmatched performance

Performance

The engine sits tilted 2° rearward. It centralises mass, cuts overall weight and improves anti-squat under power, so the bike hooks up out of ruts instead of standing up. The silencer is tuned for response, with a slightly quieter note.

04.Hit the big stuff

WP XACT front and rear with factory-derived settings, the right rubber, and a data unit if you want to go deeper.

5 features

Unflappable front end

WP XACT fork

48 mm AER: capsulated air spring and pressurised oil chamber for progressive, consistent damping; bypasses trim the pressure peaks; mid-valve damping gives feedback you can read. One air valve for preload, hand clickers for compression and rebound. The WP pump ships in the box.

Ø 48 mm
310 mmtravel

Track smoother

WP XACT shock

Settings lifted from the factory teams. Frame and shock geometry give more ground clearance at the linkage, so it stops bottoming; smaller linkage bolts save weight; refined seals give a cleaner stroke and better damping response.

300 mmtravel

Racing on rails

Stability

A forged steering-head connection and CNC-milled triple clamps keep the fork tubes perfectly aligned — responsive, smooth fork action and an honest front end across ruts. A stiffened rear brake pedal adds bending resistance and better brake feel.

Digging the dirt

Tires

Dunlop GEOMAX MX34. Rigid carcass and a compound that holds performance up to 30 % longer than before; Progressive Cornering Block Technology for berm grip; a tall, wide centre block at the rear for drive everywhere else — and a pattern that clears mud instead of packing it.

Next level moto

Connectivity Unit Offroad

Available as a PowerPart. The CUO pairs with the KTMconnect app to log your riding, change engine behaviour and suggest suspension settings for the conditions and your preferences. Ask us to spec it with the bike.

05.Maintaining momentum

Nothing to hook, nothing to snag, and a frame that soaks up the hits so you don't have to.

3 features

Nothing to hold you back

Ground clearance

Shock geometry keeps the linkage high, and topology-optimised die-cast footpegs are far less likely to hook a deep rut or a take-off when you're scrubbing. 343 mm of clearance, used well.

343 mmground clearance
958 mmseat height

Precise, lap after lap

Consistency

A durable chain guide and guard resist hooking in deep mud and keep dirt from building up around the swingarm and sprocket. For 2027 the wiring harness has new fixing points and routing, so it stops being the part that wears first.

Unobtrusive impact

Energy absorption

Hydro-formed, laser-cut, robot-welded 25CrMo4 steel with calculated longitudinal and torsional flex. The frame works as a shock absorber of its own — a less harsh ride, straight-line stability, and less fatigue over thirty hard laps.

06.Warranty & support

New bikes, delivered through authorised channels, with the paperwork the warranty is tied to.

Model year 2027 onwards

Premium manufacturer's warranty

Offroad bikes from model year 2027 carry up to 1 year of manufacturer coverage. It stays valid with intended use and scheduled services at an authorised KTM dealer, under the standard conditions on the delivery certificate. Every bike NTG supplies is new and comes with that certificate.

Technical details

Specifications

Manufacturer data, model year 2027. Delivered spec can vary by market — we confirm on the order confirmation.

Design1-cylinder, 4-stroke, SOHC

Displacement449.9 cm³

Transmission5-speed, quickshifter

Fuel systemKeihin EFI, 44 mm throttle body

Engine managementKeihin EMS, 2 maps, TC, launch control

ClutchWet DDS multi-disc, Brembo hydraulics

Primary drive29:72

Engine weight26.8 kg

FrameCentral double-cradle, 25CrMo4 steel

SubframeAluminium-reinforced polyamide

Front brakeDisc, Brembo

Rear brakeDisc, Brembo

Chain520, non-sealed

TiresDunlop GEOMAX MX34

FrontWP XACT-USD (AER), Ø 48 mm

RearWP XACT monoshock with linkage

Travel front310 mm

Travel rear300 mm

Front adjustmentAir preload, compression, rebound

Rear adjustmentHigh/low-speed compression, rebound

Seat height958 mm

Ground clearance343 mm

Tank capacity7.2 l

Weight, without fuel103.1 kg

Order

2027 KTM 450 SX-F

New, uncrated, delivered through authorised channels. Priced net, excl. VAT, for teams and resellers. Tell us the quantity and destination and we quote within one working day.

AvailabilityOn request
Price€ 9 550 net · excl. VAT
DeliveryEU-wide

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Product images and technical data © KTM AG, used for product identification. North Trade Group is an independent trader and not an authorised KTM dealer or distributor. Specifications subject to change by the manufacturer.