The KLX300SM ultimate lightweight supermoto motorcycle is powered by a 292cc, fuel-injected, liquid-cooled engine. Experience a rewarding spread of power across the rev range. Smooth power delivery and crisp throttle response helps riders of all skill levels maneuver through stop-and-go city traffic.
Review – Key Features – Features & Benefits – Specifications
2025 Kawasaki KLX300SM: SUPERMOTO YOUR WORLD.
Introducing the 2025 Kawasaki KLX300SM…
The class-leading KLX300SM lightweight supermoto motorcycle takes the fun to the streets in full supermoto style. A quick-accelerating engine, paired with light, agile handling, evokes the playfulness within. Suspension, wheels, and brakes are optimized for supermoto, and the overall aggressive styling means business. Kawasaki KXTM motocross-inspired styling gives the KLX300SM a bold appearance that brings the KXTM championship winning heritage to the streets.
Maneuver through city traffic, navigate country backroads, or experience the exhilaration of supermoto racing at a track. Suspension, wheels, and brakes have been tuned for supermoto-style performance.
2025 Kawasaki KLX300SM Totalmotorcycle.com Key Features
- 292cc FUEL-INJECTED, LIQUID-COOLED, 4-STROKE ENGINE WITH ELECTRIC START
- 17-IN FRONT AND REAR WHEELS AND ROAD TIRES
- SUPERMOTO-TUNED LONG-TRAVEL SUSPENSION
- EQUIPPED WITH KAWASAKI’S DIGITAL FUEL INJECTION SYSTEM
- LIQUID-COOLED, COMPACT 4-STROKE ENGINE
- FULL DIGITAL INSTRUMENTATION
- 17-INCH FRONT AND REAR WHEELS WITH ROAD TIRES FOR SHARP HANDLING AND AGGRESSIVE
- SUPERMOTO STYLING
- ULTIMATE LIGHTWEIGHT SUPERMOTO
- All-digital multi-function instrumentation
- Lightweight perimeter frame
- Powerful large 300mm diameter petal disc front brake
- Heat management for rider comfort
- Comfortable ergonomics
POWER AND PERFORMANCE
DELIVER THE EXCITEMENT
The KLX300SM ultimate lightweight supermoto motorcycle is powered by a 292cc, fuel-injected, liquid-cooled engine. Experience a rewarding spread of power across the rev range. Smooth power delivery and crisp throttle response helps riders of all skill levels maneuver through stop-and-go city traffic, navigate country back roads, or experience the exhilaration of supermoto racing at their local track. Electric start offers easy starting; fuel injection helps with reliable starting in a wide range of conditions and contributes to excellent fuel economy.
SUPERMOTO-TUNED PERFORMANCE
TAKE THE FUN TO THE STREETS
The KLX300SM motorcycle is built with a slim, lightweight perimeter frame that’s maneuverable but rigid at higher speeds to help with straight-line stability. The smaller front wheel, the caster angle (25°), and short wheelbase contribute to quick handling. Suspension performance offers 9.1-in of travel up front and 8.1-in in the rear, ideal for supermoto riding. The 43mm inverted cartridge-style front fork has adjustable compression damping to optimize suspension performance. The Uni-Trak rear suspension offers compression and rebound damping adjustability and fully adjustable preload, allowing riders to tailor shock settings to personal preference. Substantial braking power comes from a powerful, large 300mm semi-floating petal disc and twin-piston caliper up front and a 240mm petal disc and single-piston caliper in the rear. Agile supermoto performance is further enabled with 17-in wheels and road tires contributing to better handling on the street.
COMFORTABLE ERGONOMICS
MAKE COMFORT A PRIORITY
An upright and relaxed riding position makes it comfortable to ride the KLX300SM motorcycle. Rider-friendly ergonomics are complemented by a thick-padded seat, rubber dampened footpegs, and a 33.9-in seat height that allows riders to comfortably reach the ground at stops which increases confidence. The innovative radiator fan directs hot air down and away from the rider and from high touch areas for added comfort in traffic. The shroud design allows smooth transitions when shifting, enabling riders to feel more at one with their machine when cornering.
SUPERMOTO STYLE
ALL ATTITUDE. NO APOLOGIES.
The KLX300SM supermoto features KX™ motocross-inspired styling for a fresh, sporty look. Streamlined bodywork creates a sharp design that flows from the compact headlamp to the condensed tail, hinting at the versatile performance that riders can expect from this agile street fighter. The compact LED headlight in a slim, sharp front cowl offers remarkable brightness and style. The two-tone seat contributes to a dynamic, sporty look similar to Kawasaki’s KX motocross machines. From the cockpit, all-digital instrumentation is on display, including a digital speedometer, bar-type tachometer, clock, odometer, dual trip meters, and a range of warning/indicator lamps.
2025 KAWASAKI KLX OFF-ROAD AND DUAL-SPORT MODEL RANGE: GET OUT AND PLAY
The Kawasaki KLX off-road series brings thrill and excitement to both beginners and seasoned riders alike, maintaining their reputation for being easy to handle, exceptionally capable on trails, and requiring minimal maintenance. For 2025, Kawasaki reintroduces its beloved KLX300, KLX300SM, KLX300R, KLX140R, KLX140R L, KLX140R F, KLX110R, and KLX110R L models, catering to diverse rider sizes and riding preferences.
KAWASAKI KLX300 / KLX300SM
The KLX300 and KLX300SM make their return for 2025, each offering a fun and manageable package for riders eager to hit the dirt or pavement. Powered by a 292cc liquid-cooled DOHC engine and featuring a slim box-and-tubular-section high-tensile steel perimeter frame, 43mm inverted cartridge-style fork, and a Uni-Trak rear shock, the KLX300 ensures confident handling and durability. After receiving a refresh in 2024, the KLX300 looks aggressive and stylish, adding to the overall fit and finish that the model lineup is known for. For those seeking the same comfortable and fun package for the street, the KLX300SM model offers the same engine and chassis, supermoto tuned suspension and comes fitted with 17-inch front and rear wheels mounted on IRC street tires for plenty of spirited riding possibilities.
2025 Kawasaki KLX300SM Totalmotorcycle.com Features and Benefits
ENGINE
Compact Liquid-Cooled Engine
• 292cc displacement is17% more than typical 250cc class models for more power while maintaining the light weight and nimble feel of a 250.
• Flat top piston with pentroof combustion chamber delivers 11.1:1 compression ratio.
• Lightweight piston, piston pin and connecting rod allow power-producing revs without excessive vibration.
• A gear-driven engine balancer ensures smooth power delivery throughout the powerband, delivering greater rider comfort on long rides.
• High-capacity Denso radiators similar to the KX™ line provide high cooling efficiency. Their slim profile and tightly packed cores make the radiators smaller and lighter, while the special fin design provides excellent heat dispersion.
• Radiator fan cover located behind the radiator directs hot air down and away from the rider, significantly increasing comfort when negotiating heavy traffic. Redirecting the air also helps keep the tank and other parts that contact the rider cooler, further increasing rider comfort.
• Catalyzer and secondary air system help reduce exhaust emissions so that the KLX300SM meets strict emissions regulations and can be sold in all 50 states.
Electrofusion Cylinder(KP)
• The incredibly hard coating in the aluminum cylinder bore means superior heat transfer with less weight.
• It holds lubrication well, resists abrasion and seizure, and allows tight piston-to-cylinder clearances for more horsepower.
4-Valve DOHC Cylinder Head(KP)
• Camshaft profiles from the KLX300R contribute to top-end performance and quick throttle response.
• 4-valve cylinder head provides maximum valve area for optimum flow.
• Boosts low-end torque.
• Cam profiles complement intake port design and contribute to the smooth, quick-revving engine character.
• A cam lobe for each valve with shim-under tappets has less reciprocating weight for efficiency at high rpm.
Kawasaki DFI(KP) System
• 34mm throttle body is equipped with a sub-throttle that contributes to mid-high rpm performance.
• Ultra-fine atomizing 10-hole injector helps boost performance and provide very smooth throttle response.
• DFI provides easy starting, smooth idling, increased performance and better fuel mileage.
Electric Starter
• Electric starter and the Kawasaki Automatic Compression Release (KACR)(KP), which automatically lifts an exhaust valve at cranking rpm, makes starting the KLX300SM easy.
Digital Capacitor Discharge Ignition (CDI)(KP)
• Optimized ignition timing contributes to a strong yet easy to use power delivery at low and mid-range rpm that transitions smoothly to the powerful top-end.
• Digital ECU precisely controls timing, no matter how fast the RPM changes.
• Easy starts and reliability under extreme conditions.
High Tensile Steel Perimeter Frame(KP)
• The frame is built up of box-section and tubular high-tensile steel.
• The steering head angle and short wheelbase contribute to quick handling.
• The incredible frame rigidity contributes to excellent straight line ability.
• Rear frame rigidity has been optimized to accommodate an accessory rear carrier.
FRAME
43mm Inverted Cartridge Fork(KP)
• 16-way compression damping adjustment.
• Cartridge maintains more consistent damping force by minimizing aeration of the fork oil.
Uni-Trak Rear Suspension(KP)
• Lightweight, highly-rigid aluminum D-section swingarm helps reduce unsprung weight.
• Rear suspension linkage and damping settings provide a firm ride and a more planted feel in corners.
• The nitrogen-filled, aluminum body, remote reservoir rear shock has 16-way compression and rebound damping adjustment and threaded spring pre-load.
Front and Rear Disc Brakes
• Petal brake discs help reduce weight and the wave pattern helps to clean the brake pads for better brake performance.
• Twin piston front caliper grasps a big 300mm disc for incredible stopping power.
• Single piston rear caliper and a 240mm disc to give strong, reliable performance.
Wheels and Tires
• KLX300SM has 17-inch wheels fitted with street tires.
SUSPENSION
Relaxed Ergonomics
• The ergonomics put the rider in a relaxed, upright position, for easy maneuverability and control.
• The KLX300SM has a slightly narrower handlebar than that of the KLX300, which contributes to its unique styling.
• Footpegs are positioned close to the bike’s centerline for a slim riding position suitable to both on- and off-road riding.
• Thickly padded seat contributes to comfort on longer rides.
• Seat height and design were carefully considered to help riders reach the ground for added confidence when stopped.
• Narrow fuel tank contributes to the comfortable riding position and has a lockable, hinged one-touch cap.
• The KLX300SM features stylized mirror shapes that contribute to a more aggressive look.
Digital Instrumentation
• All-digital instrument panel features bar-graph tachometer, digital speedometer, clock dual trip meters and warning lamps.
ERGONOMICS
SPORTY STYLING
• Compact LED headlight is encased in a slim, sharp front cowl. The headlight is stacked dual design with low beam in the upper portion of the light and high beam in the lower portion. Covers hide the headlight mounts for a streamlined look.
• Front fender design contributes to the sporty silhouette.
• KX-style radiator shrouds are long and slim, especially at the ends, for easy rider freedom of movement.
• Two-piece side covers are slim for easy freedom of movement, and the two-tone colors contribute to the flowing design.
• Two-tone seat cover helps enhance the line of color created by the bodywork.
• KX-style rear fender contributes to the elongated silhouette, while the taillight is positioned forward for a compact, nimble appearance.
• Rear flap matches the fender and effectively helps shield the rider from water and mud.
2025 Kawasaki KLX300SM – Totalmotorcycle.com USA Specifications/Technical Details
US MSRP Price: $6,599 USD
Canada MSRP Price: $ TBA CDN
Europe/UK MSRP Price: £ NA GBP (On The Road inc 20% Vat)
Engine Type 4-Stroke, Liquid-Cooled, DOHC, 4-Valve Single
Displacement 292cc
Bore & Stroke 78.0 x 61.2mm
Compression Ratio 11.1:1
Fuel System DFI with 34mm throttle body
Ignition Digital DC-CDI
Transmission 6-Speed
Rake/Trail 25.0°/2.8 in.
Front Wheel Travel 9.1 in.
Rear Wheel Travel 8.1 in.
Front Tire Size 110/70-17
Rear Tire Size 130/70-17
Front Suspension 43mm Inverted Cartridge Fork with 16-Way Compression Damping Adjustment
Rear Suspension Uni-Trak with Adjustable Preload, 16-Way
Compression and Rebound Damping Adjustment
Wheelbase 56.5 in.
Front Brake Type 300mm Petal Disc
Rear Brake Type 240mm Petal Disc
Fuel Tank Capacity 2.0 gal.
Ground Clearance 9.3 in.
Seat Height 33.9 in.
Curb Weight= 304.03 lb.
Warranty 12 months
Kawasaki Protection Plus 12, 24, 36 or 48 months
(Specifications subject to change without notice.) Ask about the Rider‘s of Kawasaki (ROK) and the
Good Times™ Credit Plan.
Ask about Kawasaki’s Team Green™ amateur rider support program.
(KP) = See Kaw-Pedia section for more details.
* = Changes from previous model year.
When equipped, 50-state models with evaporative emissions equipment adds approximately 2.2 pounds.
= = Includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90% of capacity) and tool kit (if supplied).
2025 Kawasaki KLX300SM – Totalmotorcycle.com Canadian Specifications/Technical Details
2025 Kawasaki KLX300SM – Totalmotorcycle.com European Specifications/Technical Details
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
