Kawasaki has confirmed that its KX450SR – ‘Special Racer’ – will be released again for model year 2025, purpose-built with elite racing components, special tuning, and design elements inspired by Monster Energy Kawasaki.

The KX450SR is purpose-built with high-value components that have each been race-proven by the factory Monster Energy Kawasaki team in Monster Energy Supercross and the AMA Pro Motocross Championship.

Building on the KX450 platform, the KX450SR is crafted for riders aiming for the top step of the podium, enhancing both its performance and factory racer aesthetics. It takes what was a new generation model just one year ago and elevates it to a whole new level.


2025 Kawasaki KX450SR features:
– Factory race team-inspired colors and graphics
– 449cc 4-stroke, DOHC, DFI®, liquid-cooled engine
– Modified cylinder head with polished intake ports
– Pro Circuit Ti-6 titanium exhaust system
– Optimized ECU/DFI settings
– Kawasaki racing by Hinson clutch cover
– 49mm Showa Coil-Spring fork with Kashima Ti02 coating and model-specific settings
– Showa rear shock with Kashima coating and model-specific settings
– XTRIG Rocs-Tech triple clamp with PHDS (Progressive Handlebar Damping System)
– Renthal rear sprocket and D.I.D gold chain
– D.I.D Dirtstar ST-X black rims
– Metallic magnesium gold color cylinder head cover

Utilizing the same power mode system as the KX450, the KX450SR uses an Aggressive power map instead of a Mild map in addition to the Normal map. A Pro Circuit Ti-6 Pro titanium race exhaust has been fitted, while engine ECU fuel injection settings and polished intake ports are exclusive to the KX450SR and work together to offer stronger power and torque at mid-to-high RPM.

The KX450SR features exclusive suspension settings for increased suspension performance and closer resemblance to the Monster Energy Kawasaki factory racers. The fork tubes have a dark navy blue titanium coating for reduced stiction and higher durability.

Large-diameter inner fork tubes are the same size as used on the factory bikes and allow for the use of large 39mm compression damping pistons and a 25mm cartridge cylinder, providing smooth action and firm damping. The forks have a Kashima coating to create a low-friction inner surface that helps prevent wear so the sliding surfaces remain smooth for a long time.

The Showa rear shock offers dual compression adjustability so that high-speed and low-speed damping can be tuned separately. Utilizing feedback from Kawasaki’s factory race teams, the 22mm front axle enhances front-end traction. The New Uni-Trak rear suspension linkage ratios have been selected to suit the chassis.

Holding up the Showa front forks is a set of XTrig ROCS (Revolutionary Opposing Clamp System) tech triple clamps that help to improve fork flex action for more optimal fork function. The upper triple clamp is outfitted with XTrig’s PHDS (Progressive Handlebar Dampening System) handlebar mounts and is supported by elastomers which are designed to absorb vibration.

This system also helps to dampen the forces acting on the handlebars in both horizontal and vertical directions, translating into increased steering precision for the rider. With this system, the handlebar can be adjusted in 12 different positions to suit rider preference.

Adorning the KX450SR is a pair of D.I.D DirtStar ST-X wheels, improving the strength and durability under the most challenging conditions on the racetrack. The black coating on the rims emulates the looks of a factory race machine.

Further adding to the attention-grabbing appearance of the KX450SR is the championship-proven combination of a D.I.D 520ERT3 gold chain fitted to a black Renthal Ultralight aluminum rear sprocket.

With an MSRP of $13,599, the 2025 Kawasaki KX450SR will be available from October 2024.