Innovative Hare Scramble/GNCC® Engine DesignThe YZ450FX shares the revolutionary rearward-slanted-cylinder design of the YZ450F that allows for a straight downdraft intake with a symmetrical port layout. In the YZ450FX, this engine delivers a controllable, torquey power character with strong top-end power tuned specifically for cross-country racing.Bilateral Beam Aluminum FrameA nearly identical bilateral beam frame that is found on the championship winning YZ450F is used on the YZ450FX. It places the engine, fuel tank and exhaust close to the center mass of the bike for extremely light and nimble handling character.
