2025 KX450X

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 efficiency—both contributing to increased performance.

Complementing its acclaimed straight-line performance and nimble handling, a redesigned frame with optimised rigidity balance enables improved cornering performance that remains consistent across a wide range of conditions, while more centralised mass also contributes to the improved handling performance. Premium Brembo brake components and ODI Lock-On grips add to both performance and brand recognition.

Non-current colour shown

A redesigned frame accommodates the updates to the engine's 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.

Brake components include drilled Braking/Sunstar discs (ø270/240 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.

Factory-style ø49 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. Spring rates and damping settings optimised for the cross-country scene offer increased feedback, especially when riding on challenging trails.

Non-current colour shown

Already highly acclaimed for their slim ergonomics, the KX450X receives redesigned bodywork that offers an even smoother rider interface. Newly designed shrouds, side covers, and rear fender are firmer and eliminate hooking points, further facilitating rider movement.

A choice of four handlebar positions and two footpeg positions allows riders to tailor their riding position to suit body size and preference. Factory-style ø28.6 mm (1-1/8") Renthal aluminium Fatbar helps reduce vibration and shocks transmitted to the rider, while a lower, closer grip position helps put the rider in a position that makes it easier to weight the front wheel.

Medium-compound ODI Lock-On Grips offer excellent grip feel, while their screw-type fastening system greatly facilitates the task of swapping grips.

Left side cover can be removed without tools, facilitating access to the air filter element. The element is now secured with quick-release hooks (previously a wing bolt), which makes changing the air filter a much simpler task—something that enduro or cross-country racers will especially appreciate.

Cross-country-specific tuning for the suspension, complemented by a 21"/18" wheel combination fitted with enduro-type tyres, and convenient standard features like a side stand make the new KX450X even more attractive for cross-country competitors.

While the KX450 features F21"/R19" aluminium rims, the KX450X uses a F21"/R18" combination that facilitates putting the KX450X's power to the ground. Dunlop AT81 enduro-type tyres complement the KX450X-specific wheels and are well-suited to the situations encountered in cross-country riding.

Convenient side stand comes in handy when stopping away from the paddock area.

Complementing an updated Launch Control Mode, the new KX450 and KX450X are the first KX models to offer Power Mode selection and Kawasaki Traction Control at the push of a button. And with smartphone connectivity, riders can adjust engine maps right from their smartphones—another KX first that eliminates the need for accessory equipment.

The Power Mode selection button—a first for Kawasaki KX models—replaces the DFI couplers used on the previous model. Using the Mode (M) button on the left handlebar, riders can quickly and easily switch between two engine maps (Normal, Mild response) provided in the ECU.

Using the Traction (T) button on the left handlebar, riders can quickly and easily select from two levels (Weak, Strong) of traction control to suit conditions and preference. Riders may also elect to turn the system off.

Factory-style launch control system increases the chance of getting a good start by helping riders maximise traction when starting on a low-traction surface.

Using the smartphone application "RIDEOLOGY THE APP KX," riders are able to access and adjust their bike's engine maps. Functionality (adjusting fuel and ignition timing) is similar to that offered by the accessory KX FI Calibration Kit used with previous models. Maintenance and setup logs are also available.

Non-current colour shown