2012 KAWASAKI KX450FCF KX 450, 2012 KX450F highlights begin with the Supercross winning DNA of last year s bike. The advanced design of the aluminum perimeter frame and dominating motor received a host of refinements to create a more compact and mass-centralized chassis propelled by more useable power than ever. Headlining the technological charge, the KX450F features an all new Launch Control Mode, which changes DFI settings with the push of a button to maximize traction out of the starting gate. This is accomplished without sacrificing any of the mid-range grunt or straight-line speed that made the KX450F famous.