PROOF in Five Back-to-Back Titles
The KX™450F has been up to date for 2013 to assist continue its back-to-again string of current championships. The string began with Monster Vitality® Kawasaki’s Ryan Villopoto successful each the 2011 Supercross and 2011 Motocross titles, adopted by main the U.S. team to an total victory at the Motocross of Nations, then Villopoto’s absolute domination of the Monster Power Cup -which also earned him the Monster Million. Last however not least, Villopoto not too long ago defended his Supercross title by successful the 2012 championship on his KX450F!
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The KX450F’s greatest-in-class performance is delivered by way of the highest degree of rider adjustability and essentially the most progressive electronics package ever seen on a production motocross bike. Get the image? Don’t blame the bike if you can’t win on a KX450F!
Headlining the 2013 upgrades for the KX450F is a switch to the new 48mm
KYB Pneumatic Spring Fork (PSF), which uses pressurized air to eliminate
the traditional metal-coil fork springs. The reduced weight and inertia
of an air spring improves smoothness and enhances the fork’s ability to
follow terrain contours. The Pneumatic Spring Fork also significantly
reduces friction and cuts weight by an amazing 1.7 lbs. per set! Other
benefits of the air spring include providing better bottoming
resistance, quicker, easier and more effective tuning using nothing more
than a hand pump, and reduced oil contamination due to the lack of
microscopic metal particles caused by fork springs rubbing against the
inside of the fork tubes. The super-hard Diamond-Like Carbon (DLC)
coating on the outer surface of the inner fork tubes and high-tech
Kashima Coat treatment on the inner surface of the outer fork tubes
significantly reduce drag compared to a standard fork assembly and help
deliver supple, fade-free action.
A new swingarm compliments the new front fork and features a larger
front casting that extends further down the spars for maximum strength
and improved rigidity. The Kayaba rear shock features a beefy 50mm
piston and a top-shelf Kashima Coat surface treatment on the inside
walls of the shock body. Ample adjustability helps ensure smooth,
reliable and consistent action of the rear suspension that not only
offers superior performance, but also helps the rider relax and conserve
valuable strength on the way to the finish line. Kawasaki offers an
optional rear suspension tie rod that is one millimeter longer than
stock, which can be used to reduce seat height by four millimeters.
No other production motocross bike offers a higher degree of
adjustability to the rider interface or engine character than the
KX450F. With a choice of four different handlebar positions, two footpeg
positions, and virtually unlimited ignition mapping capabilities, the
KX450F is uniquely able to adapt to changing track and surface
conditions and meet the needs of a wide range of riders.
The Digital Fuel injection (DFI®) system comes with three pre-programmed
ignition maps which are easily selectable without the use of a laptop
computer or any other electronic devices. Maps can quickly be changed
between three settings – standard, hard (terrain) and soft (terrain) –
by swapping the DFI wire coupler cap clipped to the side of the steering
head. Easy access to the coupler cap means no additional accessories
are needed to alternate between pre-preprogrammed maps – simply connect
the appropriate coupler cap to activate an ignition mode to match track
conditions. The ECU is also fully re-programmable and custom maps can be
created by using the accessory Kawasaki Racing Software Calibration
Kit, the same tool used by Kawasaki factory and privateer teams in AMA
and FIM racing.
New, longer grips for 2013 extend further toward the center of the
handlebars, allowing riders to slide their hands up to 20mm closer
together, for a more compact feel than last year’s bike. The grips also
feature a taller pattern and are molded from lower density material to
make life easier on the rider’s hands. Minimalist body work, shrouds and
number plates contribute to the slender feel and sleek looks of
Kawasaki’s flagship motocross machine. Sparing no attention to detail,
the seams between the radiator shrouds, seat and side covers are very
flush fitting, which help prevent snags and allow the rider to change
position and maneuver more freely on the bike. The compact fuel tank
also forms a smooth and nearly straight line with the seat to allow
maximum rider movement.
A blue finish on the oil cap and two caps on the generator cover
highlight the factory appearance of the KX450F motor, and match the blue
anodized finish on the suspension adjusters. An embossed logo on the
clutch cover features a trick design and is painted silver to help hide
the normal signs of wear.
The 2013 KX450F is available in Kawasaki Lime Green, with black anodized
rims, blue highlights and aggressive graphics inspired by the Team
Monster Energy Kawasaki factory race bikes.
Racers who ride their KX450F at designated events are eligible to
receive support from Team Green™, Kawasaki’s amateur racing support
program. For over 30 years, Team Green has been providing regional
support vehicles and highly trained technicians at more than 100 yearly
events throughout the United States, 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.
The KX450F’s engine provides proven top-end and over-rev performance,
but ups the ante with improved torque from ultra-low revs all the way
through the upper mid-range. Revised intake valve lift, a revised piston
crown and tweaked ignition settings provide the increased torque and
improved throttle response for 2013. The end result is a smoother
powerband with more “area under the curve,” AKA usable power. The
KX450F’s works-style bridge-box bottom piston allows for optimum
strength and high rev durability.
Specification
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
DFI® with 43mm Keihin throttle body
Ignition
Digital DC-CDI
Transmission
Five-speed
Rake / trail
26.9 degrees / 4.4 in.
Front suspension / wheel travel
48mm inverted, Kayaba PSF 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 50mm piston, 22-position low-speed and stepless high-speed compression dampening, 33-position rebound dampening and fully adjustable spring preload / 12.4 in.
Front tire size
80/100-21
Rear tire size
120/80-19
Front brake
Single rigid-mount 250mm petal disc with dual-piston caliper
Rear brake
Single 240mm petal disc with single-piston caliper
Overall length
85.8 in.
Overall width
32.3 in.
Overall height
50.2 in.
Wheelbase
58.3 in.
Ground clearance
13.0 in
Seat height
37.6 in.
Curb weight
248.0 lbs.
Fuel capacity
1.64 gal.
Color
Lime Green
*Note: Specifications and pricing are subject to change.
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