The KX collection has consistently impressed with podium finishes in the off-road world, thanks to its recent significant redesign last year. For 2025, Kawasaki’s KX450 motocrosser, 450SR, and cross-country-focused 450X models return unchanged from their previous iterations. Kawasaki’s 2024 updates to the 450X include modernizing the 449cc engine’s cylinder head and fuel injection system, while also refining the aluminum chassis and bolstering the braking capabilities. The model also features ODI lock-on grips for added control. To enhance performance and stay competitive, the bike’s outdated EFI coupler system was replaced with advanced energy modes and traction management features, further refining its off-road capabilities.
To recap, the 2025 KX450X builds upon its KX450 motocross sibling’s efficiency and aggressive styling while tailoring its setup for cross-country excursions through suspension tuning, 21-inch front and 18-inch rear wheels wrapped in enduro-oriented tires, and a practical sidestand, rendering it competition-ready out of the box. The bike features a unique combination of 21/18-inch wheels paired with Dunlop AT81 tires exclusively designed for the X model. This setup is complemented by a 49mm inverted coil-spring fork, as well as a Uni-Trak rear suspension that’s fully adjustable and inherited from its KX450 stablemate. However, the 450X features softer spring rates and damping settings, along with shorter gear ratios, to better navigate the demanding cross-country terrain.
Ergonomic enhancements on the 450X were further refined last year, resulting in redesigned radiator shrouds, sleeker side covers, and a reprofiled rear fender to minimize any interference with riders’ knees and boots; meanwhile, adjustable handlebars and footpegs cater to individual rider preferences. The redesigned airbox now houses a cutting-edge dome-shaped filter that effortlessly slides out for simplified maintenance, thanks to its quick-release aspect cover. Additionally, the handlebar-mounted Energy mode button has made a welcome return, enabling riders to swiftly and easily switch between Regular and Gentle engine mapping within the ECU; further fine-tuning is available through Kawi’s Rideology app. The bike’s selectable traction management system, which can be disabled at will, makes a welcome return on the 2025 KX450X, along with its launch control features.
Braking performance is bolstered by the combination of a 270mm front petal disc, paired with a two-piston Brembo caliper and master cylinder configuration, alongside a 240mm rear disc and single-piston caliper setup. The new model has received widespread praise for its significantly enhanced braking performance compared to its predecessors.
As you enter the styling realm, you’ll notice that there are no changes to last year’s sculpted bodywork, largely because it still looks remarkably awesome. The 2025 Kawasaki KX450X will arrive in stores exclusively in its distinctive Lime Green hue for the upcoming year, while the base price remains unchanged at $9,599. It’s already in store.
The 2025 Kawasaki KX450X: Unleashing Power and Performance.
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450cc liquid-cooled DOHC single-cylinder; 4-stroke
Fuel Injection: Dual Electronic Fuel Injection (DFI) w/39mm throttle body
Transmission:
6-speed with reverse
Suspension:
43mm inverted fork, 12 inches travel
Unsprung length adjustable shock absorber, 12.2 inches travel