The 2013 Kawasaki KX™450F comes with the highest level of rider adjust-ability and the most progressive electronics package ever seen on a production motocross bike. The Digital Fuel injection (DFI®) system comes with three pre-programmed ignition maps which are easily selectable without the use of any electronic devices. It has been updated from previous model, the new 48mm KYB Pneumatic Spring Fork (PSF), which uses pressurized air to eliminate the traditional metal-coil fork springs. The weight has been reduced and inertia of an air spring improves smoothness and enhances the fork’s ability to follow terrain contours. In 2013 championship it will be fights with other products in the same class such as KTM 450 SXF and Honda CRF450R. There are no other products of motocross bike that offers a higher degree of adjust-ability to the rider interface or engine character than this bike. Learn more detail specification and features on 2013 Kawasaki KX450F.
2013 Kawasaki KX450F Specification
Engine Type – 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
Ignition – Digital DC-CDI
Fuel Injection – DFI® with 43mm Keihin throttle body
Transmission – Five-speed
Chassis and Dimension
Available Colors – Lime Green
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 step-less 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
Fuel Capacity – 1.64 gal.
Rake/Trail – 26.9 degrees/4.4 in.
Seat Height – 37.6 in.
Ground Clearance – 13.0 in
Wheelbase – 58.3 in.
Length – 85.8 in.
Width – 32.3 in.
Height – 50.2 in.
Curb Weight – 248.0 lbs.
2013 Kawasaki KX450F Features
Engine and Transmission – 449cc liquid-cooled, DOHC, four-stroke single works-based bridged-box bottom piston has optimum rigidity for maximum high-rpm power and durability. Highly balanced crankshaft, on par with Villopoto’s factory racer, creates minimal vibration and has a high inertial mass to help maximize rear wheel traction. 5-Speed transmission and low-rpm engine response combination offers riders more gear options for traversing rough sections or getting into the rhythm of a course easily so they can focus on racing. Thick first gear offers excellent durability for launching off the line in high-traction situations.
Chassis and Suspension – Slender frame helps the bike feel compact and nimble, but tapers to become wider near the rider’s ankles to offer optimum grip and control. The new grips also extend further towards the center of the handlebars, allowing riders to move their hands up to 20mm closer together. New 48mm KYB Pneumatic Spring Fork (PSF) eliminates the main fork springs by using compressed air as a spring, it improves smoothness and enhances the fork’s ability to follow terrain contours. Larger 32mm diameter internal damping cartridges allow the use of pistons with approximately twice the surface area, and provides more consistent performance and enhances bottoming resistance. KYB rear shock features a large 50mm piston and a Kashima Coat treatment on the cylinder wall for reduced friction and smoother suspension action on 2013 Kawasaki KX450F.