2009 Kawasaki Motocrossers
Add one more manufacturer to the list of companies offering an electronic fuel injected bike, because Kawasaki has now entered the battle with their re-designed KX450F. The biggest change to the bike is the fuel injection, but there were also a host of other changes with the aim of making a more durably and reliable bike.

As for the other motocrossers in Kawi’s line-up, the KX250F also received a number of changes that include making it sleeker, faster, and more durably. For 2009, Kawasaki is also offering a black Monster Energy edition for each one of the current MX models.
For more information of these bikes, be sure to check back here on Motocross.com for a full review of the 250F and 450F, as we’ll dig deeper into what makes these bikes better than the previous years. For now, we’re going to list off the specs for the green machines. Have fun, and try not to drool too much…

KX450F
Engine: Liquid-cooled, four-stroke single with DOHC and four valve cylinder head
Displacement: 449cc
Bore x stroke: 96.0 x 62.1mm
Compression ratio: 12.5:1
Fuel Injection: 43mm Keihin Throttle body
Ignition: Digital DC-CDI
Transmission: Five-speed
Rake/trail: 26.7 degrees / 4.6 in.
Front suspension/wheel travel: 48mm inverted, Kayaba AOS with DLC coated sliders, 22-position compression and 20-position rebound dampening adjustment / 12.4 in.
Rear suspension/wheel travel: UNI-TRAK® linkage system and Kayaba shock with 22-position low-speed and stepless high-speed compression dampening, 22-position rebound dampening and fully adjustable spring preload / 12.4 in.
Front tire: 90/100-21
Rear tire: 120/80-19
Front brake: Single semi-floating 250mm petal disc with dual piston caliper
Rear brake: Single 240mm petal disc with single-piston caliper
Overall length: 86.0 in.
Overall width: 32.3 in.
Overall height: 50.4 in.
Wheelbase: 58.3 in.
Ground clearance: 13.4 in.
Seat height: 38.0 in.
Curb weight: 247.2 lbs.
Fuel capacity: 1.8 gal.
Color: Lime Green
MSRP: $7,549

KX250F
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: 13.2:1
Ignition: 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 / 4.8 in.
Front suspension/wheel travel: 47mm inverted Showa twin-chamber telescopic fork with 16-way compression and rebound damping / 12.4 in.
Rear suspension/wheel travel: UNI-TRAK® linkage system and Showa shock with 13-way low-speed and stepless high-speed compression damping, 17-way rebound damping and fully adjustable spring preload / 12.2 in.
Front tire: 80/100-21
Rear tire: 100/90-19
Front brake: Single semi-floating 250mm petal disc with dual piston caliper
Rear brake: Single 240mm petal disc with single-piston caliper
Overall length: 85.4 in.
Overall width: 32.3 in.
Overall height: 50.0 in.
Wheelbase: 57.9 in.
Ground clearance: 13.4 in.
Seat height: 37.6 in.
Curb weight: 229.9 lbs.
Fuel capacity: 2.1 gal.
Color: Lime Green
MSRP: $6,499

KX100
Engine: Two-stroke single with KIPS®
Displacement: 99cc
Bore x stroke: 52.5 x 45.8mm
Cooling: Liquid
Carburetion: Keihin PWK28
Induction: Two-petal reed valve
Compression ratio: 9.6:1 (low speed) – 8.8:1 (high speed)
Ignition: Digital CDI
Transmission: Six-speed
Final drive: Chain
Frame: High-tensile steel perimeter design with subframe member
Rake/trail: 27 degrees / 4.1 in.
Front suspension/wheel travel: 36mm inverted telescopic cartridge fork with 18-way compression damping / 10.8 in.
Rear suspension/wheel travel: UNI-TRAK® single shock system with 4-way compression and 18-way rebound damping plus adjustable spring preload / 10.8 in.
Front tire: 70/100x19
Rear tire: 90/100x16
Front brake/rear brake: Hydraulic disc / Disc
Overall length: 75.2 in.
Overall width: 28.9 in.
Overall height: 43.5 in.
Ground clearance: 15.0 in.
Seat height: 34.3 in.
Curb weight: 156.5 lbs.
Fuel capacity: 1.5 gal.
Wheelbase: 50.8 in.
Color: Lime Green
MSRP: $3,499

KX85
Engine: Two-stroke single with KIPS®
Displacement: 84cc
Bore x stroke: 48.5 x 45.8mm
Cooling: Liquid
Carburetion: Keihin PWK28
Induction: Crankcase reed valve
Compression ratio: 10.0:1 (low speed) – 9.2:1 (high speed)
Ignition: Digital CDI
Transmission: Six-speed
Final drive: Chain
Frame: High-tensile steel perimeter design with subframe member
Rake/trail: 27 degrees / 3.5 in.
Front suspension/wheel travel: 36mm inverted telescopic cartridge fork with 18-way compression damping / 10.8 in.
Rear suspension/wheel travel: UNI-TRAK® single-shock system with 4-way compression and 16-way rebound damping, plus adjustable spring preload / 10.8 in.
Front tire: 70/100x17
Rear tire: 90/100x14
Front brake/rear brake: Hydraulic disc / Disc
Overall length: 71.7 in.
Overall width: 28.9 in.
Overall height: 41.5 in.
Ground clearance: 13.4 in.
Seat height: 33.1 in.
Curb weight: 152.1 lbs.
Fuel capacity: 1.5 gal.
Wheelbase: 49.4 in.
Color: Lime Green
MSRP: $3,299