How quickly things change in the MX world; one year you’re hot and the next you’re knocked to second spot. Suzuki’s RM-Z450 held onto the trophy for two years, but refinements and upgrades to Kawasaki’s KX450F have vaulted it into the hot seat for 2013. Key to its improved performance is Kayaba’s Pneumatic Spring Fork (PSF), which allows the unit to be adjusted by simply adding or bleeding air. With a new piston, intake cam and revised ECU, the KX450F has become a holeshot machine.
Related: 2013 Kawasaki KX450F - First Ride
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