You just can’t argue with results. Kawasaki’s KX™250F motorcycle has been a dominant force in professional supercross and motocross racing over the last two years. Now, this world-beating machine gets even better, with a host of refinements offering improved shifting, quicker handling and boosted reliability.
The KX250F was a model of speed and consistency throughout the 2007 AMA Supercross Lites seasons, sweeping both the AMA West Region Supercross Lites and East Region Supercross Lites championships plus the National Arenacross titles. Now, the lessons learned on the racetrack come home to roost in the 2008 machine.
New crankcases provide increased rigidity in the areas surrounding the crankshaft, transmission input and transmission output shafts to transfer torque more-efficiently and improve overall durability in the toughest race conditions. A new shift lever, positioned three degrees higher, offers a finer spline pitch so that it can be adjusted more accurately and provides more-positive shifting.
To compliment the increased longitudinal rigidity introduced on the 2007 KX250F’s frame, the 2008 model features new engine mounts which use a 10mm longer spacer to reduce torsional rigidity. This new chassis rigidity balance provides even quicker steering, better rider feel and a boost in rear wheel traction.
Subtle suspension refinements improve suspension feel, turning response and bottoming resistance. These changes include smaller air passages at the top of the fork cartridges which provide an enhanced air “spring” effect for smoother compression damping, while .5mm thicker fork piston rods provide increased rigidity and smoother response through the middle of the suspension’s stroke. Updated settings in the rear shock provide a smoother mid-stroke response to compliment the changes in the front fork valving, while a slightly higher ride height provides quicker handling and a more aggressive feel.
The 2008 KX250F will be available in Kawasaki Lime Green, with factory-look black alumite coated rims standard.
Racers who ride their KX250F at designated events are eligible to receive support from Team Green™, Kawasaki’s amateur racing support program. Each year, Team Green provides regional support vehicles and highly trained technicians at more than 100 events, offering technical information and assistance to those who race Kawasaki products. Kawasaki also offers a comprehensive contingency program for amateur and professional riders who place well at designated events.
Features
Styling
- Bodywork, graphics and seat cover have aggressive style inspired by championship winning factory teams
Options
- Different inertia magneto rotors
- 12-tooth countershaft sprocket
- Top handlebar clamp for an oversized bar
- Aluminum and steel rear sprockets with optional tooth sizes
- Solid petal brake rotors for wet racing conditions
- Optional springs for the front fork and rear shock
- Manual decompression lever and cable
- 20-inch front wheel
Specifications
Engine Four-stroke single with DOHC and four valves
Displacement 249cc
Bore x stroke 77.0 x 53.6mm
Cooling Liquid
Carburetion Keihin FCR37 and hot start circuit
Compression ratio 13.5:1
Ignition Multi-map digital CDI with K-TRIC throttle position sensor
Transmission Five-speed with wet multi-disc manual clutch
Final drive Chain
Frame Aluminum perimeter
Rake / trail 27.7 degrees / 4.7 in.
Front suspension / wheel travel 47mm inverted twin-chamber telescopic fork with 16-way compression and rebound damping / 12.4 in.
Rear suspension / wheel travel UNI-TRAK® linkage system with 13-way low-speed and 2-turn high-speed compression damping, 17-way rebound damping and fully adjustable spring preload / 12.2 in.
Front tire 80/100-21 51M
Rear tire 100/90-19 57M
Front brake Single semi-floating 250mm petal disc with dual piston caliper
Rear brake Single 240mm petal disc with single-piston caliper
Overall length 85.0 in.
Overall width 32.3 in.
Overall height 50.0 in.
Wheelbase 57.8 in.
Ground Clearance 13.2 in.
Seat height 37.8 in.
Dry weight 204 lbs.
Fuel capacity 1.9 gal.
Color Lime Green
The KX250F was a model of speed and consistency throughout the 2007 AMA Supercross Lites seasons, sweeping both the AMA West Region Supercross Lites and East Region Supercross Lites championships plus the National Arenacross titles. Now, the lessons learned on the racetrack come home to roost in the 2008 machine.
New crankcases provide increased rigidity in the areas surrounding the crankshaft, transmission input and transmission output shafts to transfer torque more-efficiently and improve overall durability in the toughest race conditions. A new shift lever, positioned three degrees higher, offers a finer spline pitch so that it can be adjusted more accurately and provides more-positive shifting.
To compliment the increased longitudinal rigidity introduced on the 2007 KX250F’s frame, the 2008 model features new engine mounts which use a 10mm longer spacer to reduce torsional rigidity. This new chassis rigidity balance provides even quicker steering, better rider feel and a boost in rear wheel traction.
Subtle suspension refinements improve suspension feel, turning response and bottoming resistance. These changes include smaller air passages at the top of the fork cartridges which provide an enhanced air “spring” effect for smoother compression damping, while .5mm thicker fork piston rods provide increased rigidity and smoother response through the middle of the suspension’s stroke. Updated settings in the rear shock provide a smoother mid-stroke response to compliment the changes in the front fork valving, while a slightly higher ride height provides quicker handling and a more aggressive feel.
The 2008 KX250F will be available in Kawasaki Lime Green, with factory-look black alumite coated rims standard.
Racers who ride their KX250F at designated events are eligible to receive support from Team Green™, Kawasaki’s amateur racing support program. Each year, Team Green provides regional support vehicles and highly trained technicians at more than 100 events, offering technical information and assistance to those who race Kawasaki products. Kawasaki also offers a comprehensive contingency program for amateur and professional riders who place well at designated events.
Features
Styling
- Bodywork, graphics and seat cover have aggressive style inspired by championship winning factory teams
Options
- Different inertia magneto rotors
- 12-tooth countershaft sprocket
- Top handlebar clamp for an oversized bar
- Aluminum and steel rear sprockets with optional tooth sizes
- Solid petal brake rotors for wet racing conditions
- Optional springs for the front fork and rear shock
- Manual decompression lever and cable
- 20-inch front wheel
Specifications
Engine Four-stroke single with DOHC and four valves
Displacement 249cc
Bore x stroke 77.0 x 53.6mm
Cooling Liquid
Carburetion Keihin FCR37 and hot start circuit
Compression ratio 13.5:1
Ignition Multi-map digital CDI with K-TRIC throttle position sensor
Transmission Five-speed with wet multi-disc manual clutch
Final drive Chain
Frame Aluminum perimeter
Rake / trail 27.7 degrees / 4.7 in.
Front suspension / wheel travel 47mm inverted twin-chamber telescopic fork with 16-way compression and rebound damping / 12.4 in.
Rear suspension / wheel travel UNI-TRAK® linkage system with 13-way low-speed and 2-turn high-speed compression damping, 17-way rebound damping and fully adjustable spring preload / 12.2 in.
Front tire 80/100-21 51M
Rear tire 100/90-19 57M
Front brake Single semi-floating 250mm petal disc with dual piston caliper
Rear brake Single 240mm petal disc with single-piston caliper
Overall length 85.0 in.
Overall width 32.3 in.
Overall height 50.0 in.
Wheelbase 57.8 in.
Ground Clearance 13.2 in.
Seat height 37.8 in.
Dry weight 204 lbs.
Fuel capacity 1.9 gal.
Color Lime Green
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