KTM Press Release Below:

If gold is what you’re after, a 450 SX-F is what you get. Thanks to its compact engine delivering explosive but controllable power, it’s the weapon of choice for the Red Bull KTM Factory Team and the champion, Ryan Dungey. In fact, the 450 SX-F just captured back-to-back AMA Supercross Championships along with the 2015 AMA Motocross Championship with Dungey at the helm.

Its secret? Precise handling and arm-stretching grunt thanks to a lightweight and agile chassis matched to a compact powerhouse of an engine. For 2017 the best gets even better with traction control and WP AER 48 air-sprung forks to create the most READY TO RACE motocross machine ever. Winners - line up here.


2017 450 SX-F Highlights

  • NEW WP AER 48 front fork with a sophisticated air spring design and separate damping for easy adjustment to any track condition, rider weight or skill level. The fork is now 3.1 pounds lighter than the 4CS unit it replaces.
  • NEW rear suspension settings and softer rear spring are perfectly matched to the WP AER 48 front fork.
  • NEW Handlebar map switch that also activates TRACTION CONTROL and Launch Control for enhanced traction for the start, middle and end of the race.
  • NEW top triple clamp supports the new flex characteristic of the WP AER 48 fork for better action and reduced friction.
  • NEW Handlebar clamps feature a separated lower clamp and bridge-type upper clamp for more torsional stiffness.
  • NEW 10mm longer rear brake pedal and less aggressive brake pads provide better modulation and control.
  • NEW Aluminum head stays are 60 grams lighter than the steel they replace.
  • A lightweight Chromoly steel frame provides high torsional rigidity with less longitudinal stiffness resulting in excellent handling and energy absorption.
  • KTM’s “No Dirt” footpeg design keeps the pegs pivot from becoming clogged, ensuring the footpeg is always in the correct position.
  • Super lightweight Galfer Wave rotors, CNC machined hubs, high-end Excel rims and Dunlop GEOMAX MX3S tires.
  • Airbox and filter design provides maximum performance with fast “no tools” air filter changes.
  • “No Dirt” shift lever prevents dirt from fouling the lever joint to ensure proper shifting in any condition.


  • Engine Type: Single Cylinder 4-Stroke
  • Displacement: 449.9cc
  • Bore/Stroke: 95.0/63.4mm
  • Compression Ratio: 12.7.5:1
  • Starter/Battery: Electric Starter/12V, 2.2Ah
  • Transmission: 5 Gears
  • Fuel System: Keihin EFI, 44mm Throttle Body
  • Lubrication: Pressure lubrication with 2 oil pumps
  • Primary Ratio: 31:76
  • Final Drive: 13:48
  • Cooling: Liquid Cooling
  • Clutch: Wet Multi-Disc DDS-Clutch, Brembo Hydraulics
  • Ignition: Keihin EMS
  • Frame: Central Double-Cradle Type 25CrMo4 Steel
  • Subframe: Aluminum
  • Handlebar: Neken, Aluminum Ø 28/22mm
  • Front Suspension: WP Suspension AER 48 USD Ø 48mm
  • Rear Suspension: WP Monoshock 5018 BAVP DCC with Linkage
  • Suspension Travel Front/Rear: 300mm/11.81in; 300mm/11.81in
  • Front/Rear Brakes: Disc Brake 260mm/10.24in; 220mm/8.66in
  • Front/Rear Rims: 1.60x 21, 2.15 x 19 Excel
  • Front/Rear Tires: 80/100-21”; 120/90-19” Dunlop MX3S
  • Chain: 5/8 x 1/4in
  • Silencer: Aluminum
  • Steering Head Angle: 26.1º
  • Triple Clamp Offset: 22mm
  • Wheelbase: 1,485mm ± 10mm/58.5 ± 0.4in
  • Ground Clearance: 370mm/14.6in
  • Seat Height: 960mm/37.8in
  • Tank Capacity, Approx:7L/1.85gal
  • Weight (without fuel), Approx: 100.6kg/221.8lbs
First Look: 2017 KTM Motocross and Cross-Country Line

The Latest