2026 KX450

Kawasaki 2027 THE BIKE THAT BUILDS CHAMPIONS for Sale at Ultimate Kawasaki Gold Coast in Suburb, State | Specifications and Review Information

The KX legacy created a long line of champions. The drive to produce more has not slowed down. Our flagship race machine, the KX450 motorcycle, offers next-level engineering and power to dominate the track. Over the decades, we’ve learned what it takes to win and stay on top. The KX450 embodies this legacy to the fullest.

To learn more about the illustrious history of the KX brand, click on the link below:
KX 50TH ANNIVERSARY SITE

Featuring:

POWERFUL 449 cc 4-STROKE ENGINE
DOWNDRAFT INTAKE, CYLINDER WITH STRAIGHT INTAKE/EXHAUST PORTS, AND CENTRALLY POSITIONED EXHAUST
HANDLEBAR-MOUNTED TRACTION CONTROL AND POWER MODE SWITCHES
SMARTPHONE CONNECTIVITY: CHANGE ENGINE MAPPING WITH YOUR SMARTPHONE
BREMBO BRAKE COMPONENTS
ERGO-FIT ADJUSTABLE ERGONOMICS

THE BIKE THAT BUILDS CHAMPIONS

Even Stronger Engine

Downdraft intake layout and symmetrically aligned intake and exhaust deliver a strong over-run and smooth low-rpm torque characteristics. Redesigned intake offers a much straighter route for air-fuel mix to enter the cylinder, while a centrally positioned exhaust port lines up with the intake for high airflow efficiencyâ€”both contributing to increased performance.

Reliable Starting

Being able to restart an engine quickly during a race can mean the difference between keeping your lead or having to fight your way back through the pack. Electric start makes restarting the engine as easy as pushing a button.

Light & Responsive

A hydraulic clutch offers direct feel and light lever action. Less play as the clutch heats up during heavy use results in more consistent feeling. The use of coned-disc springs contributes to lighter clutch actuation when the lever has been pulled in, and a wider clutch engagement range, which facilitates control (especially when half-clutching).

Race-Ready Suspension

Factory-style 49 mm inverted coil-spring front fork and New Uni Trak rear suspension offer race-ready suspension performance and adjustability to let riders tune their settings to suit conditions.

High-Performance Brembo Brake System

Brake components include drilled Braking/Sunstar discs (270/240 mm) paired with a Brembo caliper and master cylinder at the front and a Nissin caliper and master cylinder at the rear. The high-performance system offers increased controllability on the brakes, contributing to enhanced corner entry.

Lightweight Aluminium Perimeter Frame

A redesigned frame accommodates the updates to the engines intake and exhaust systems, while delivering a high level of both light, nimble handling and a composed character. Optimised rigidity balance contributes to increased front-end feel that translates to improved cornering performance in a wider range of conditions.

Engine	4-stroke Single
Displacement	449 cc
Bore x Stroke	96.0 x 62.1 mm
Compression Ratio	12.5:1
Valve System	DOHC, 4 valves
Fuel System	Fuel injection: ø44 mm x 1
Ignition	Digital DC-CDI
Starting	Electric
Cooling	Liquid-cooled
Lubrication	Forced lubrication, semi-dry sump
Transmission	5-speed, return
Primary Reduction Ratio	2.727 (60/22)
Gear Ratio: 1st	1.750 (28/16)
Gear Ratio: 2nd	1.412 (24/17)
Gear Ratio: 3rd	1.188 (19/16)
Gear Ratio: 4th	1.000 (19/19)
Gear Ratio: 5th	0.875 (21/24)
Final Reduction Ratio	3.846 (50/13)
Clutch	Wet multi-disc, manual
Final Drive	Chain

Frame	Perimeter, aluminium
Front Suspension	ø49 mm inverted fork with adjustable compression and rebound damping
Rear Suspension	New Uni Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable spring preload
Front Wheel Travel	305 mm
Rear Wheel Travel	307 mm
Rake	26.6°
Trail	115 mm
Steering Angle (L/R)	42° / 42°
Front Tyre	80/100-21 51M
Rear Tyre	120/80-19 63M
Front Brake/s	Semi-floating ø270 mm petal disc
Front Caliper/s	Dual-piston
Rear Brake	ø240 mm petal disc
Rear Caliper	Single-piston

Dimensions (LxWxH)	2,180 x 820 x 1,270 mm
Wheelbase	1,480 mm
Road Clearance	345 mm
Seat Height	960 mm
Curb Weight*	112.9 kg
Weight without Fuel	108.4 kg
Fuel Capacity	6.2 litres
Model Code	KX450MTFNN

*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). **Estimated dry weight does not include all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

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. Kawasaki Motors Pty Ltd.

Specifications subject to change.