2012 Kawasaki KX450F New Motorcross

New Kawasaki KX450F This production-first feature is designed specifically for the start of a motocross race with the ignition timing in first and second gears altered to reduce excessive wheelspin. The LCM is activated by a switch on the left handlebar and automatically deactivates when shifting into third gear. Kawasaki went a little further with the programming by offering three base settings that are interchangeable without having to bust out the calibration kit.

The all-new 2012 KX 450F motorcycle is loaded with new technology inspired by the Monster Energy Kawasaki factory bikes.  With the MX industry’s first production-use Launch Control Mode, three supplied DFI couplers for easy access to three maps provided in the new ECU, and adjustable footpeg and handlebar positions that allow riders to tailor the ergonomics for a perfect fit, Kawasaki’s KX450F is better than ever and bound to continue its domination on the track.

2012 Kawasaki KX450F
2012 Kawasaki KX450F

The 2012 Kawasaki KX450F with Engine 449cc liquid-cooled, DOHC, four-stroke single Works-based Bridged-box Bottom piston has revised rigidity for improved high-rpm power Revised intake cam and all-new exhaust result in wider powerband A forward lean angle of 3° puts the engine in the ideal position for maximum traction Highly balanced crankshaft, on par with Villopoto’s factory racer, creates minimal vibration. Maintenance-free automatic cam chain adjuster and Large airbox flap helps prevent mud and water from entering. Kawasaki trimmed the 450F’s midsection by narrowing the distance across the main aluminum spars by 4mm. Riders will be able to grip with their knees easier than ever and they can tailor the footpeg placement to suit their particular taste. Kawasaki now provides two footpeg mounting locations, much like is popular for sport bikes, one 5mm lower than stock.

The Kawasaki KX450F was already one of the largest-feeling bikes with the most room for riders in the saddle. This will only further that sensation and make big riders even more comfortable. Engineers didn’t forget about the short guys and gals out there either. With a thinner tie rod on the rear shock linkage, Kawi will offer an optional rod that is 1mm lower, making for a 6mm shorter seat height. The rear Kayaba shock uses a 50mm piston and offers 12.4 inches of travel. The 48mm Kayaba is the Air-Oil Separate (AOS) design with DLC coating on the lower tubes, Kashima coating on the inner tubes and the same amount of travel.

2012 Kawasaki KX450F
The Kawasaki KX450F with DFI system comes with pre-programmed ignition maps, but new for 2012, these maps are interchangeable without the use of a laptop computer or other separate electronic devices. Maps can quickly and easily be changed between three settings standard, hard (conditions) and soft (conditions) by swapping the DFI wire coupler cap clipped to the side of the steering head. The KX450F delivers improved mid- to high-end power and a wider powerband, thanks to numerous upgrades. The KX450F’s race-proven bridge-box bottom piston allows for optimum strength just like last year, but has been revised to optimize its rigidity balance and enhance mid- high-rpm character. A new thinner top piston ring with upgraded surface treatment reduces friction and helps improve throttle response. A new intake cam offers a slight increase in intake valve lift and allows the motor to breathe deeper, boosting power as well.


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