2017 Yamaha YZ450FX, 2017 Yamaha YZ450FX PURE 450CC X-COUNTRY RACER Designed for closed course X-Country and enduro-type racing the YZ450FX combines light, nimble handling with the power of a 450. Features may include: 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.Advanced Fuel InjectionThe YZ450F-based Keihin® 44mm throttle body fuel injection system is tuned for cross-country racing and ensures smooth throttle response and easy starting in nearly all conditions.Cross Country-Specific SuspensionIndustry-leading, YZ450F-derived KYB® spring-type forks with speed sensitive damping and a linkage-type, KYB® rear shock both feature fully adjustable settings designed specifically for cross country racing.Cross Country Podium ReadyWith a two gallon fuel tank, sealed O-ring chain, and an 18-inch rear wheel with XC racing tires, the YZ450FX is ready to win right out of the box.Electric Starter SystemThe YZ450FX features an electric starter to help reduce rider fatigue along with a new main switch-free electrical system for easier starting off.
