The 2025 KX450X is an off-road cross-country competition model that features the same championship-proven technology found on KX race machines and has been purposely tuned for off-road competition. The addition of a 21”/18” wheel combination allows the power of the KX450X to be transferred directly to the ground and the Dunlop AT81 tires make sure the bike can handle the obstacles found in cross-country riding. A high-performance 49mm inverted coil-spring fork and New Uni-Trak rear suspension are inherited from its KX450 brethren, with the spring rates and damping settings optimized for the cross-country environment. The KX450X also comes with a convenient side stand for when at a stop.
Photos
Highlights
Team Charlotte
New
2025
Kawasaki
KX™450X
5-speed, return shift, with wet multi-disc manual clutch and hydraulic clutch actuation
Available
Specifications
2025
Kawasaki
KX™450X
Base
Off-Road
4-stroke, single-cylinder, DOHC
449cc
Liquid-cooled
96.0mm
62.1mm
12.5:1
DFI® with 44mm Keihin throttle body
Digital CDI with handlebar-controlled power modes
5-speed, return shift, with wet multi-disc manual clutch and hydraulic clutch actuation
Chain
Aluminum perimeter
49mm Showa inverted telescopic coil-spring fork with 21-way adjustable compression and 22-way adjustable rebound damping
Uni-Trak® gas charged shock with piggyback reservoir with adjustable dual-range compression damping (19-way low speed and 4.25 turn stepless high speed), 23-way adjustable rebound damping and stepless adjustable preload
Single semi-floating 270mm Braking/Sunstar petal disc with Brembo master cylinder and dual-piston caliper
Single 240mm Braking/Sunstar petal disc with single-piston caliper
80/100-21
12.0 in
120/80-18
12.1 in
27.0°/4.6 in
85.6 in
32.1 in
49.6 in
13.2 in
37.4 in
58.3 in
1.64 gal
239.8 lb without fuel / 249.9 lb
Lime Green
Electronic Rider Aids: Power Modes, Kawasaki TRaction Control (KTRC), Launch Control Mode | Smartphone Connectivity via RIDEOLOGY THE APP KX™, ERGO-FIT®