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2025 KTM 450 SX-F

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Specs and Features

ENGINE

TRANSMISSION

5-speed

STARTER

Electric starter

STROKE

63.4 mm

BORE

95 mm

CLUTCH

Wet, DDS multi-disc clutch, Brembo hydraulics

COMPRESSION RATIO

13.1

DISPLACEMENT

449.9 cm³

EMS

Keihin EMS

DESIGN

1-cylinder, 4-stroke engine

FUEL-MIXTURE GENERATION

Keihin EFI, throttle body 44 mm

CHASSIS

WEIGHT (WITHOUT FUEL)

102.6 kg

TANK CAPACITY (APPROX.)

7.2 l

WHEELBASE

1493 mm

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 (AER), Ø 48 mm

GROUND CLEARANCE

343 mm

HANDLEBAR

Neken, aluminium Ø 28/22 mm

REAR SUSPENSION

WP XACT Monoshock with linkage

SEAT HEIGHT

958 mm

SILENCER

Aluminium

STEERING HEAD ANGLE

63.9 °

REAR SUBFRAME DESIGN

Aluminum-reinforced polyamide

SUSPENSION TRAVEL (FRONT)

310 mm

SUSPENSION TRAVEL (REAR)

300 mm

WHEELS

Spoked wheels with aluminium rims

2025 KTM 450 SX-F

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.

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.

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 massive peak power output, and an overall engine weight of only 59 lb (26.8 kg), you'll leave the competition with more than a little mud on the face.

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 for better cornering.

Updated Suspension Settings

For 2025, the KTM SX and SX-F range has given the WP XACT AER fork and WP XACT rear shock an update. This means you'll be lining up at the starting gate with re-tuned settings, reduced weight, improved weight distribution, and an increase in overall response.

Connectivity Unit Offroad

Available as a PowerPart on the KTM SX-F range, the Connectivity Unit Offroad - or CUO for short - offers a wide range of functionalities and adjustability options via the KTMconnect app. The CUO gives you a new insight into your riding, allows you to alter your engine behavior, and even provides you with optimized suspension settings based on individual preferences and riding conditions. Welcome to the next level moto.

2025 KTM 450 SX-F

Specs and Features

2025 KTM 450 SX-F

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