The KX™450 motocross motorcycle is built to lead the competition. Pull away with the power of a 449cc 4-stroke engine. A new coned disc-spring hydraulic clutch delivers light clutch actuation, wide engagement range and fade resistance. Feel the race-winning advantage of a lightweight chassis and Showa A-KIT technology suspension. Ride with comfort thanks to a new Renthal® Fatbar® handlebar and ERGO-FIT® adjustability.
Take it for a ride todayERGO-FIT is an interface system that allows a wide range of riders to feel at one with their machine.
KLCM (Kawasaki Launch Control Mode) optimizes acceleration from a stop by electronically managing engine output to minimize wheelspin.
4-stroke single, DOHC, liquid-cooled
449cc
96.0 x 62.1mm
12.5:1
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
49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping/12.0 in
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
80/100-21
120/80-19
27.6°/4.8 in
13.4 in
58.5 in
86.0 in
32.3 in
49.8 in
37.6 in
232.7 lb without fuel / 242.9 lb**
1.64 gal
Chain
Aluminum perimeter
Lime Green
Not Available
Single semi-floating 270mm Braking® petal disc with dual-piston caliper
Single 250mm Braking® petal disc with single-piston caliper
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.
Proper fit is key for rider comfort and control. However, the ideal fit varies from rider to rider, depending on their physical dimensions and riding style.
ERGO-FIT is an interface system designed to allow riders to find their ideal riding position. Various points of the chassis interface (the handlebar, footpegs and seat, etc) can be adjusted through a combination of interchangeable parts and parts with adjustable positions. This enables a wide range of riders to find a riding position that offers both comfort and control. Feeling at one with their machine, they will be able to experience how Kawasaki machines are fun and rewarding to ride.
*Adjustable parts and their range of adjustability vary by model.
Designed to assist riders by optimizing acceleration from a stop, KLCM electronically manages engine output to minimize wheelspin when moving off.
With the clutch lever pulled in and the system activated, engine speed is limited to a determined speed while the rider holds the throttle open. Once the rider releases the clutch lever to engage the clutch, engine speed is allowed to increase, but power is regulated to minimize wheelspin and help keep the front wheel on the ground. The system disengages automatically once a predetermined speed has been reached, or when the rider shifts into 3rd gear. Depending on the model, riders can choose from multiple modes, each offering a progressively greater level of intrusion.
