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Vehicle Profile

Hailing from the KX™ championship legacy, the KX™450X motorcycle has been tuned for off-road racing. The bike features race-ready cross-country suspension for optimized feedback and traction in off-road environments. Front 21" and rear 18" wheels paired with off-road tires help to optimize off-road capability. A factory-style skid plate and a convenient side stand come equipped standard.

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Kawasaki Technology

  • tech-LT-BG/ErgoFit Created with Sketch.
  • tech-LT-BG/KLCM Created with Sketch.
  • Discover Kawasaki's Technology


ERGO-FIT is an interface system that allows a wide range of riders to feel at one with their machine.

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Kawasaki Launch Control Mode (KLCM)

KLCM (Kawasaki Launch Control Mode) optimizes acceleration from a stop by electronically managing engine output to minimize wheelspin.

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Top Features


  • Engine


    4-stroke single, DOHC, liquid-cooled



    Bore x Stroke

    96.0 x 62.1mm

    Compression Ratio


    Fuel System

    DFI® with 44mm Keihin throttle body


    Digital CDI with 3 Coupler Options


    5-speed, return shift, with wet multi-disc manual clutch and hydraulic clutch actuation

  • Suspension

    Front Suspension / Wheel Travel

    49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping/12.0 in

    Rear Suspension / Wheel Travel

    Uni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping, 22-way rebound damping and adjustable preload/12.1 in

    Front Tire


    Rear Tire



    27.6°/4.7 in

    Ground Clearance

    13.2 in


    58.5 in

  • Totals

    Overall Length

    86.0 in

    Overall Width

    32.3 in

    Overall Height

    49.8 in

    Seat Height

    37.4 in

    Curb Weight

    235.8 lb without fuel / 246.0 lb**

    Fuel Capacity

    1.64 gal

  • General

    Final Drive


    Frame Type

    Aluminum perimeter

    Color Choices

    Lime Green

    Kawasaki Protection Plus (optional)

    Not Available

  • Brakes

    Front Brakes

    Single semi-floating 270mm Braking® petal disc with dual-piston caliper

    Rear Brakes

    Single 240mm Braking® petal disc with single-piston caliper

  • Guarantee


    Not Available

**Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

Specifications subject to change

KAWASAKI CARES: Always wear a helmet, eye protection, and proper apparel. Never ride under the influence of drugs or alcohol. Read Owner’s Manual and all on-product warnings. Professional rider shown on a closed course. ©2021 Kawasaki Motors Corp., U.S.A.

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