op FeaturesCompetition Ready: Featuring Yamaha's revolutionary rearward slanted, liquid-cooled, DOHC 4-stroke power plant based on the race-winning YZ250F, and with an added sixth gear and wide ratio transmission, the YZ250FX is an "out-of-the-box" Hare Scrambles/GNCC® competition machine.Nimble Chassis: Nearly the same bilateral beam frame that is found on the championship winning YZ250F is used on the YZ250FX. It places the engine and fuel tank close to the center mass of the bike for extremely light and nimble handling character.