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ID # 21314133

2023 Kawasaki KX450

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Overview
With more Supercross and Motocross championships than any other manufacturer, the KX name is synonymous with winning. The KX450 motorcycle represents the flagship of the KX lineup, built with the sole purpose of dominating the track. Over the past four decades, we’ve learned what it takes to win and stay on top. Our dedication to building the ultimate machine is undeniable, and the KX450 represents this to the fullest.

FEATURING

  • POWERFUL 449cc 4-STROKE ENGINE
  • ELECTRIC START
  • RACE-READY SHOWA SUSPENSION

ADDITIONAL VEHICLE FEATURES

  • Finger-follower valve actuation
  • Coned disc-spring hydraulic clutch
  • Factory-style Launch Control Mode
  • Setting-adjustable motocross ECU
  • Slim aluminum perimeter frame
  • ERGO-FIT adjustable handlebar and footpeg positions
  • Factory-style Renthal Fatbar

Specifications
Model
KX
Category Name
Motorcycles
Year
2023
Manufacturer
Kawasaki
Color
LIME GREEN
top features

FACTORY-STYLE ENGINE COMPONENTS AND TUNING2023 Kawasaki KX450

Recognized as the most powerful motocrosser in the paddock, the KX450 boasts innovative engine technology inspired by Kawasaki’s race machines. Features like finger-follower valve actuation and a bridged-box bottom piston that contribute to its lofty performance are backed by electric start and a hydraulic clutch, further elevating its race-winning potential.

FACTORY-STYLE CHASSIS COMPONENTS AND TUNING 2023 Kawasaki KX450

Trimmed of all unnecessary material, this is the leanest KX450 chassis to date. Frame, suspension, brakes and ergonomics have all been optimized to make the KX450 even better equipped to turn quick lap times.

 

technology

Engine Management Technology

LAUNCH CONTROL MODE

In motocross racing, getting a good start is critical. A few tenths of a second can make the difference between getting the holeshot or not. In slippery conditions, getting the maximum drive from a motocrosser requires precise control of the both the clutch and throttle.

Launch Control Mode helps riders get a good start by complementing high-level technique with engine management. Featured on a mass-production motocrosser for the first time on the Kawasaki KX450F, the system activates a separate engine map designed to get a more efficient start off the line. The system is designed to the same specifications as that used by our factory racers competing in the AMA Supercross and Motocross championships.

Launch Control Mode is activated simply by pressing the button on the handlebar. The Launch Control map slightly retards ignition timing to help tame the engine's strong torque and reduce wheel spin off the start. Launch Control Mode is only active in the first two gears after the launch, disengaging and returning to the standard engine map automatically once the rider shifts into third gear. The system gives riders a great advantage when lining up at the gate and puts them in a better position to win.

Chassis Management Technology

ERGO-FIT

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.

 

power
Clutch
Wet multi-disc, manual
Engine
449cc, liquid-cooled, 4-stroke, DOHC 4-valve single
Ignition
Digital DC-CDI
Starting
Electric
Final Drive
Chain
Fuel System
Fuel injection: ø44 mm x 1
Lubrication
Forced lubrication, semi-dry sump
Transmission
5-speed, return
Bore X Stroke
96.0 x 62.1 mm
Compression Ratio
12.5:1
performance
Frame
Perimeter, aluminum
Rear Tire
120/80-19 63M
Front Tire
80/100-21 51M
Rear Brake
ø250 mm petal disc with single-piston caliper
Front Brake
Semi-floating ø270 mm petal disc with dual-piston caliper
Rake / Trail
27.6° / 122 mm
Steering Angle (L/R)
42° / 42°
Rear Suspension / Wheel Travel
New Uni Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable spring preload / 307 mm (12.1 in)
Front Suspension / Wheel Travel
ø49 mm inverted fork with adjustable compression and rebound damping / 305 mm (12.0 in)
details
Wheelbase
1,485 mm (58.5 in)
Curb Mass**
110.4 kg (243 lb)
Seat Height
955 mm (37.6 in)
Fuel Capacity
6.2 litres
Road Clearance
340 mm (13.4 in)
Mass Without Fuel
105.8 kg (233 lb)
Dimensions (L X W X H)
2,185 x 820 x 1,265 mm (86.0 x 32.3 x 49.8 in)
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