Review – Key Features – Features & Benefits – Specifications
2027 Kawasaki KX450FX: CROSS-COUNTRY CHAMPION.
Introducing the 2027 Kawasaki KX450FX…
The 2027 KX450FX is built to meet the demands of cross-country racing, combining durability, traction, and practical features for a wide range of terrain. A 21” front wheel and 18”rear wheel, paired with enduro-style tires, deliver strong grip from tight wood sections to more open terrain. For 2027, the KX450FX adds a larger-capacity fuel tank of approximately 1.98 gallons, allowing for longer ride time between stops, along with a skid plate to help protect the underside of the engine in rough conditions. Hand guards are also now standard, providing added protection from branches, roost, and debris. Additional features such as a side stand, sealed chain, and pre-wired connections for headlight and taillight use further enhance convenience and durability, making the KX450FX well-suited for off-road competition.
Built to lead in cross-country racing, the KX450FX motorcycle carries flagship KX performance into the toughest conditions. A revised engine delivers improved overall performance, while a complete Brembo brake system offers maximum stopping power across varied terrain. Complementing the new athletic bodywork is a redesigned aluminum perimeter frame that enhances traction and high-speed stability, keeping you composed when it matters most. Built for those who expect the best in off-road performance.
2027 Kawasaki KX450FX Totalmotorcycle.com Key Features
- 449cc 4-Stroke Engine with Electric Start
- NEW More Aggressive Power Feel at Mid-High RPM
- NEW Aluminum Perimeter Frame with Longer Wheelbase
- NEW Optimized Cross-Country Specific Suspension Settings
- NEW Front and Rear Brembo Brake Components
- NEW Athletic Styling with Slim, Ergonomic Bodywork
- NEW98 Gallon Larger-Capacity Translucent Fuel Tank, Skidplate, and Handguards
- NEW Enhanced Smartphone Connectivity via GPS and RIDEOLOGY THE APP KX2*
- Power Mode Selection
- Kawasaki TRaction control (KTRC)
- NEW Updated Launch Control Mode for Holeshot Advantage
- NEW Aluminum Side Stand
- 21-Inch Front Wheel, 18-Inch Rear Wheel, Sealed Chain, and Rear Brake Disc Guard
- 449cc 4-STROKE ENGINE WITH ELECTRIC START
- NEW MORE AGGRESSIVE POWER FEEL AT MID–HIGH RPM
- NEW ALUMINUM PERIMETER FRAME WITH LONGER WHEELBASE
- NEW OPTIMIZED CROSS-COUNTRY-SPECIFIC SUSPENSION SETTINGS
- NEW FRONT AND REAR BREMBO BRAKE COMPONENTS
- NEW ATHLETIC STYLING WITH SLIM, ERGONOMIC BODYWORK
- NEW 1.98-GAL LARGER-CAPACITY FUEL TANK, SKID PLATE, & HAND GUARDS
- NEW ENHANCED SMARTPHONE CONNECTIVITY VIA GPS AND RIDEOLOGY THE APP KX2
- POWER MODE SELECTION VIA HANDLEBAR-MOUNTED SWITCH AND RIDEOLOGY THE APP KX2
- KAWASAKI TRACTION CONTROL (KTRC) VIA HANDLEBAR-MOUNTED SWITCH AND RIDEOLOGY THE APP KX2
- UPDATED LAUNCH CONTROL MODE FOR HOLESHOT ADVANTAGE
- 21-IN FRONT WHEEL, 18-IN REAR WHEEL, SEALED CHAIN, REAR BRAKE DISC GUARD, & SIDE STAND
- Revised intake & exhaust systems and optimized FI settings for improved engine performance
- Coned disc-spring hydraulic clutch
- Showa 49mm coil-spring fork and New Uni-Trak® rear suspension with Showa shock
- ODI lock-on grips
- ERGO-FIT® adjustable components for ride position optimization
- Streamlined ergonomics for easy rider movement
- Quick-release side cover offers tool-less air filter access
- 12V bullet terminals front and rear for aftermarket accessories
ADDITIONAL KX450FX FEATURES:
- NEW Revised Intake & Exhaust Systems and Optimized FI Settings for Improved Engine Performance
- Coned Disc-Spring Hydraulic Clutch
- Showa 49mm Coil-Spring Fork and New Uni-Trak® Rear Suspension with Showa Shock
- ODI Lock-On Grips
- ERGO-FIT® Adjustable Components for Ride Position Optimization
- Streamlined Ergonomics for Easy Rider Movement
- Quick-Release Side Cover Offers Tool-Less Air Filter Access
- 12V Bullet Terminals Front and Rear for Aftermarket Accessories
For nearly two decades, Kawasaki’s KX450F has built its reputation at the highest level of motocross, delivering winning performances on tracks around the world. For 2027, the KX450F continues that legacy with a more refined and race-focused package, designed to help riders push harder and stay competitive from start to finish. As the KX model line continues to evolve, for 2027 the “F” returns to the model name signifying the model as Kawasaki’s flagship four-stroke motocross motorcycle.
Updates to the intake and exhaust systems give the 2027 KX450F a stronger, more responsive feel when the throttle is opened, with improved low-end pull and stronger performance through the mid- to high-rpm range. A redesigned chassis, including a revised swingarm, improves rear-wheel traction and control, while a longer wheelbase adds stability at speed, helping riders stay planted in demanding conditions. Premium components, including a full Brembo braking system, further enhance performance and control on the track.
The updated bodywork features a slimmer, more compact design with smooth surfaces that allow riders to move freely on the bike. Kawasaki’s signature Lime Green styling reinforces its race-ready identity and presence on the track.
For 2027, the KX450F also introduces an improved smartphone connectivity experience, offering more intuitive engine tuning, expanded launch and traction control adjustability, ride logging, monitoring functions, and maintenance reminders.
Overall, the 2027 KX450F is more stable, and more capable than ever, continuing to deliver the performance needed to compete at the highest level.
2027 Kawasaki KX450FX Totalmotorcycle.com Features and Benefits
CHAMPION’S CHASSIS
LEAVE THEM IN THE DUST
Ride with championship-ready confidence on the 2027 KX450FX cross-country motorcycle. An updated frame, revised suspension settings, and refined rider ergonomics offer sharper handling and greater rider connection, while Brembo brake components supply elite stopping power.
BALANCE MEETS PRECISION
A new lightweight perimeter frame, revised swingarm, and longer wheelbase offer improved rear-end traction, controllability, and stability. Optimized rigidity balance makes for a steady front-end feel that translates to precise cornering performance.
RACE-READY
A high-performance 49mm inverted Showa coil-spring fork handles suspension duties up front, with optimized suspension settings for improved shock absorption. The fork’s internal valving, adjusters, and oil level are finely tuned, and the large-diameter inner tubes (the same size as on our factory motocross racers) enable the use of large damping pistons for smooth action and firm damping.
CHAMPIONSHIP-PROVEN
An updated New Uni-Trak® rear suspension system features a Showa shock with adjustable dual-range (high- and low-speed) compression damping, adjustable rebound damping, and adjustable preload. The result is optimal damping and rear-wheel traction. A new linkage guard helps protect the rear suspension.
FREEDOM TO FLOW
A redesigned seat and slim shrouds enhance appearance and ergonomics, while a larger 1.98-gal fuel tank adds cross-country-ready capability.
ADVANCED STOPPING POWER
A high-performance front and rear Brembo brake package delivers strong, consistent stopping power. Up front, a Brembo brake caliper and master cylinder are complemented by a steel-braided brake line that sharpens feel and controllability, while new rear Brembo brake components help smooth out corner entry for quicker cornering.
TREAD ONWARD
The KX450FX meets the tough demands of cross-country racing. Cross-country wheels (21-in front/18-in rear) are paired with specific Dunlop Geomax AT81 tires developed for GNCC racing.
BUILT TO WIN
The 2027 KX450FX cross-country motorcycle helps you stay ahead of the pack from the starting gate to the finish line. Refined from intake to exhaust, the race-ready engine delivers broad, usable torque and responsive power across the rev range.
BREAK FROM THE PACK
Optimized fuel injection settings deliver a stronger low-end power feel with improved pull through the mid–high rpm range. The difference is immediately noticeable when accelerating out of corners, while strong top-end power keeps charging down the straight.
TUNED FOR VICTORY
With revised intake and exhaust systems and optimized fuel injection settings, the new KX450FX engine improves performance with a more aggressive engine feeling and more power at mid–high rpm.
The revised exhaust system optimizes power delivery across the rev range, helping the KX450FX pull hard through acceleration and maintain strong top-end performance down the straight.
TRANSFORM THE PLAYING FIELD
The 2027 KX450FX cross-country motorcycle places advanced tech at your fingertips. Kawasaki TRaction Control (KTRC), Power Mode Selection, and Launch Control Mode are all conveniently accessible. For riders who crave more control, next-generation RIDEOLOGY THE APP KX2 offers advanced tuning and more connectivity than ever before.
RIDEOLOGY THE APP KX2
Kawasaki’s next-generation RIDEOLOGY THE APP KX2 gives riders more ways than ever to tune and manage their KX machine straight from their smartphone. Intuitive engine mapping and expanded launch and traction control selection make fine-tuning easier and more precise. The app also offers engine monitoring, recording of trip logs via an onboard GPS unit, maintenance reminders, and KX FI Calibration functionality for adjusting fueling and ignition timing.
POWER DELIVERY
Power Mode Selection allows riders to switch between 2 power modes (Normal or Mild) quickly and easily. Using the Power mode (M) button on the left handlebar, riders can select between Normal and Mild response to suit the current riding conditions or preference. These 2 maps, initially set to the same configuration, can be selected via RIDEOLOGY THE APP KX2.
KAWASAKI TRACTION CONTROL
The KX450FX motorcycle features Kawasaki TRaction Control (KTRC) for superior performance. Using the KTRC mode (T) button on the left handlebar, riders can select from Mode 1, Mode 2, or OFF to suit the current riding conditions or preference. The setting for both modes is initially the same, but the level of intervention for each mode can be set via RIDEOLOGY THE APP KX2.
EVERY SECOND COUNTS
A factory-style launch control system helps put power to the ground for maximum acceleration. Riders can activate Launch Control Mode by pressing the Mode and Traction buttons simultaneously. Using RIDEOLOGY THE APP KX2, riders can select from 3 intervention levels and adjust rev-limit settings to suit the current riding conditions or preference.
LOOK ALIVE
Cross-country accessories, sharp new bodywork, and rider-focused ergonomics give the 2027 KX450FX cross-country motorcycle a purposeful race-ready look and feel. From Kawasaki-exclusive ERGO-FIT® adjustable components to quick filter access, every detail keeps riders comfortable, connected, and ready to perform.
CROSS THE COUNTRY
Cross-country racing demands durability and preparation. Standard equipment side stand, sealed chain, and bullet terminals for accessories such as headlight and taillight add everyday convenience, while a skid plate, rear brake disc guard, and hand guards help protect against rocks, branches, and rugged terrain.
READY TO POUNCE
Every curve and line of the 2027 KX450FX is shaped for victory. Updated bodywork with smooth surfaces fit the rider to let them move freely. Compact athletic look, slim proportions, and clean lines—it’s a purpose-built design.
ADJUST FOR VICTORY
Experience the winning advantage of Kawasaki-exclusive ERGO-FIT® adjustable components. Riders can choose between 4 handlebar positions and 2 footpeg positions, tailoring their riding position based on body size and preference.
LOCKED IN
Medium-compound ODI Lock-On grips deliver excellent grip feel with a screw-type fastening system that makes changing grips quick and easy.
SIMPLIFY MAINTENANCE
A quick-release side cover can be removed without tools, allowing for easy access to the air filter element.
2027 Kawasaki KX450FX – Totalmotorcycle.com Specifications/Technical Details
US MSRP Price: $10,599 USD
Canada MSRP Price: $ 12999 CDN
Europe/UK MSRP Price: £ See Dealer (On The Road inc 20% Vat)
TBA
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
