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KTM 450 SX-F

2024 KTM 450 SX-F Top Speed, Specs, Price, & Mileage

The KTM 450 SX-F has been launched with a new paint scheme and a few upgrades. It is built around a single-cylinder engine that offers industry-leading power. KTM has fitted this motocrosser with new age electronics that enhance its performance. The 450 SX-F is one of the best motocross bikes in its segment and here is everything you need to know about it.

KTM 450 SX-F Top Speed, Specifications, Mileage and Price

KTM 450 SX-F Key Specifications

Engine 1-Cylinder, 4-stroke
Transmission 5-Speed
Power54.8 bhp
Seat Height37.4 inches
Dry Weight221.56 lbs
Fuel Tank Capacity7.5 liter

Image Gallery

Top Features

  • Hydro Formed Chromium Molybednum Frame
  • Gravity Die Cast Swingarm
  • 48 mm WP XACT Upside Down Forks
  • Seperate Function Forks
  • WP XACT Mono-Shock
  • CNC Machined Tripple Clamps
  • Hight Strength NKEN Aluminium Tapered Handlebar
  • Red Bull KTM Factory Racing Colors
  • High Tech Brembo Brakes
  • Full Size Lightweight & High ENd Rims
  • Dunlop Geomax MX33 Tires
  • SOHC Single-Cylinder Engine
  • KEIHIN Engine Management System
  • Side-Mounted Counter Balancer Shaft
  • DDS Clutch and Handlebar Map Select Switch

KTM 450 SX-F Review

The KTM 450 SX-F comes with a 449.9cc single-cylinder engine with the latest electronic injection system. Its compact single overhead camshaft design offers indomitable power and performance. This motocrosser comes with a 5-speed transmission and it is fitted with a durable DDS clutch. It makes nearly 54.8 BHP of max power and 34.6 lb-ft of max torque. The KTM 450 SX-F top speed is nearly 123 mph and it is one of the fastest bikes in this segment. The 450 SX-F comes with a KEIHIN engine management system with a 44 mm throttle body.

KTM 450 SX-F top speed

It features a KTM Factory-inspired paint scheme and graphics in this year’s edition like the KTM 250 SX. The 450 SX-F comes with a CrMo double-cradle frame that provides superb stiffness and response. It is fitted with a 260 mm disc brake on the front wheel and a 220 mm disc brake on the rear wheel. The KTM 450 SX-F uses a WP XACT 48mm USD front forks and a WP XACT mono-shock with linkage at the rear. This motocrosser comes with riding aids like traction control, handlebar map select switch, and launch control.

KTM 450 SX-F Top Speed Video

Here is a video of the 450 SX-F dyno test. The dyno test indicates its power, torque, and top speed.

KTM 450 SX-F Price in the USA

The KTM 450 SX-F price in the USA starts at $ 10,299 USD excluding the freight charges. This motocrosser from KTM competes with the Husqvarna FC 450, Yamaha YZ450F, Honda CRF450R, and the Suzuki RM-Z450. Among its competitors, the KTM 450 SX-F and its sibling the Husqvarna FC 450 are the costliest motocrossers in this segment.


  • One of the fastest motocrosser in the 450cc segment
  • Very lightweight
  • Amazing handling and improved suspension
  • Powerful brakes
  • One of the best performer in this class


  • Noticeable engine vibration
  • Costliest in the 450cc segment

Related Bikes

Honda CR500KTM 500 EXC-F

KTM 450 SX-F Specifications

Engine & Transmission

Engine Type4-Stroke, SOHC, Single-Cylinder,
Engine Displacement449.9cc
No. of Cylinders1
Fuel TypePetrol
Fuel SupplyFuel Injection
Cooling SystemLiquid Cooling
Bore 95 mm
Stroke63.4 mm
Compression Ratio
Valves Per Cylinder4
Starting Electric Starter
Ignition Digital
Transmission 5-Speed
ClutchDDS Clutch
Final DriveChain

Top Speed Performance, & Mileage

Power 54.8 HP @ 9,500 rpm
Torque34.6 lb-ft @ 7,400 rpm
Top SpeedKTM 450 SX-F top speed is 123 mph
0-60 mph5-6 sec (estimated)

Chassis & Suspension

Body TypeMotocross
ChassisCrMo Double Cradle Frame
Front SuspensionWP XACT 48 mm USD
Rear Suspension WP XACT Mono-Shock with Linkage
Front Wheel Travel310 mm
Rear Wheel Travel300 mm

Brakes, Wheels, & Tires

Front BrakeSingle 260 mm Disc
Rear BrakeSingle 220 mm Disc
Front Brake Diameter260 mm
Rear Brake Diameter220 mm
Front Wheel21 Inch Spoke Rim
Rear Wheel19 Inch Spoke Rim
Tire TypeTube Type
Front Tire Size80/100-21
Rear Tire Size110/90-19

Dimension & Capacity

Wheelbase 58.5 in
Seat Height 37.4 in
Ground Clearance14.6 in
Dry Weight 221.56 lbs
Fuel Tank Capacity7.5 l
Seating Capacity1

Electricals & Lighting

Battery TypeLithium-Ion
Battery Capacity2 Ah
Pilot LightsNo
Taillights No
Turn Signals No
Pass LightNo

Instrument Console & Speedometer

Console TypeNo Instrument Console
Trip MeterNo
No. of Trip Meters0
Fuel GaugeNo
Gear Shift LightNo
Gear Position Indicator No

Other Features

Electric StarterYes
Engine kill SwitchYes
Stand Alarm No
Stepped SeatNo
Pillion SeatNo
Pillion GrabrailsNo
Pillion Footrest No
Underseat StorageNo
Additional FeaturesTraction Control, Launch Control,
Engine Map Modes

Conclusion on KTM 450 SX-F

The single-cylinder engine on the 450 SX-F is fierce and it provides great performance. The new model comes with improved suspension and it has one of the most efficient brakes in this segment. It has a comfortable rider triangle and the electronics onboard come in handy. KTM 450 SX-F excels in the engine, suspension, rideability, braking, and performance department making it one of the most desirable motocrossers in the 450cc segment.

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