Introduction

When the pavement ends, the fun doesn’t have to stop if you’re riding the Kawasaki KLX®250S. Lights, turn signals and all the other things you need to ride on the street are here, but the KLX250S’s heart belongs in the dirt. With its 249cc liquid-cooled single, long-travel suspension and rugged steel frame, this lightweight machine lets you access the best of both worlds. That compact and powerful four-stroke single-cylinder engine fires right up through the miracle of electric starting, and it mounts nice and low beneath a lightweight, high-tensile steel perimeter frame to provide a low center of gravity and enhanced maneuvering on tight trails. A gear-driven engine balancer keeps it nice and smooth for greater comfort and less fatigue on longer rides. The 34mm semi-flat slide Keihin CVK carburetor provides great throttle response and broad, smooth power—not to mention fantastic fuel economy. The KLX250S meets strict CARB regulations, making it available in California.
 
Details & Features

Single-cylinder 249cc DOHC Engine
• Compact engine design is lightweight and high revving, with a broad torque curve
• Good mass centralization for superior handling
• Flat-top piston and pentroof combustion chamber deliver an 11:1 compression ratio
• Lightweight piston, piston pin and connecting rod enable higher revs for maximum power
• Aluminum cylinder features electrofusion coating, which allows a tight piston-cylinder clearance for greater horsepower and increased engine life thanks to superior heat transfer and lubrication retention properties
• A gear-driven engine balancer provides smooth power delivery from idle to redline
• Provides maximum valve area for optimum flow, to boost low end torque while providing improved high-rpm breathing efficiency for more power
• 34mm semi-flat slide Keihin CVK carburetor delivers the optimum amount of fuel at all rpm, contributing to improved response and power, as well as good fuel economy
• Meets strict CARB regulations, so it’s available in California
Liquid Cooling
• Dual high-capacity, vertical-flow Denso radiators provide reliable and efficient engine cooling
• Radiators feature tightly packed cores and a fin design for excellent heat dispersion
• More consistent engine temperatures allow tighter engine clearances for quieter running and sustained power, while promoting longer engine life
• Cooling fan is powered by a shallow-footprint electric motor
Electric Starting
• Quick and easy push-button starting
• Kawasaki Automatic Compression Release (KACR) automatically lifts one of the exhaust valves at cranking rpm, for reduced starting effort
Exhaust System
• Secondary air system helps provide clean emissions
• USFS-approved spark arrester allows the KLX250S to access designated off-road public riding areas
Six-Speed Transmission
• Allows engine’s full potential to be used
• Provides excellent acceleration as well as relaxed highway cruising
Inverted Front Forks
• 43mm inverted cartridge fork offers excellent rigidity and consistent damping performance; 10.0-inch travel means straight-line stability, great handling and a low seat height
• 16-way compression damping adjustment allows tuning for differences in rider weight and terrain
UNI-TRAK® Rear Suspension
• 9.1 inches of rear wheel travel for straight-line stability, great handling and a low seat height
• Progressive linkage rate provides a smooth ride and excellent bottoming resistance
• The gas-charged remote-reservoir shock features 16-way adjustable compression and rebound damping
Improved Inverted Front Forks
• 43mm inverted cartridge fork offers excellent rigidity and consistent damping performance
• Reduced travel to 10.0 in. for increased straight-line stability, improved handling in corners and a lower seat height
• 16-Way compression damping adjustment allows tuning for differences in rider weight or various terrain profiles
UNI-TRAK® Rear Suspension
• All new linkage and revised damping settings reduce front-rear pitching motions
• Rear wheel travel reduced to 9.1 in, for increased straight-line stability, improved handling in corners and a lower seat height
• Progressive linkage rate provides a smooth ride and excellent bottoming resistance
• The gas-charged shock features 16-way adjustable compression and rebound damping and remote reservoir
Diamond Frame
• Lightweight, high-tensile steel for amazing rigidity
• No down tubes, for lower engine placement and lower center of gravity as well as ample ground clearance
• Lightweight, aluminum D-section swingarm is highly rigid and reduces unsprung weight
• KX™ racing-type chain adjusters allow precise adjustment to minimize drivetrain power losses
Enhanced Ergonomics
• KLX-spec handlebar for a more relaxed position and effortless control
• Footpegs are positioned close to the bike’s centerline
• KLX-spec seat shape and foam make it easier to change seating position
Bodywork
• Aggressive headlight and front fender design
• Two-piece radiator shrouds styled like the KX motocrossers
• Rear fender is a two-piece unit featuring a sharp tail light design that offers great visibility and further contributes to the KLX’s aggressive styling
Narrow Fuel Tank
• Narrow tank design gives riders maximum comfort and control without sacrificing capacity
Digital instrumentation
• All-digital instrument console gives at-a-glance information that includes a digital bar-graph tachometer, digital speedometer, clock, and dual trip meters
Petal disc brakes
• Front and rear disc brakes offer impressive stopping performance
• Twin-piston caliper grips a 250 mm petal disc up front
• 240mm rear petal disc for great power, feel and feedback
Wheels/tires
• Fat, 4mm spokes for greater off-road durability
• Tires with small tread blocks for longer tire life and increased grip on asphalt
 

Specifications

Engine Four-stroke, Liquid-Cooled, DOHC, four-valve single
Displacement 249cc
Bore x Stroke 72.0 x 61.2mm
Compression ratio 11.0:1
Cooling System Liquid
Carburetion Keihin CVK34
Ignition Digital CDI
Transmission Six-speed
Final drive Chain
Frame Type Semi-double cradle, high-tensile steel
Rake/Trail 26.5 degrees / 4.1 in.
Front suspension / wheel travel 43mm Inverted Cartridge Fork with 16-Way Compression Damping Adjustment / 10.0 in.
Rear suspension / wheel travel Uni-Trak® with Adjustable Preload, 16-Way Compression and Rebound Damping Adjustment / 9.1 in.
Front Tire Size 80/100x21
Rear Tire Size 100/100x18
Front brakes / rear brakes 250mm semi-floating petal disc with two-piston hydraulic caliper / 240mm petal disc with single-piston hydraulic caliper
Overall length 86.6 in.
Overall width 32.3 in.
Overall Height 47.4 in.
Seat height 35.0 in.
Wheelbase 56.3 in.
Ground clearance 11.2 in.
Fuel capacity 2.0 gal.
Curb weight 297.7 lbs.
Color Choices Lime Green, Ebony
Kawasaki Protection Plus 12, 24, 36 or 48 months
Warranty 12 Months