2018 Yamaha YZ450FX

YZ450F-INSPIRED. CROSS-COUNTRY WIRED.

Designed for closed course X-Country racing, combines light, nimble handling with the power of a 450.

Features may include:- Engine

Cross Country-Tuned YZ450F PowerYZ450F-style 449cc liquid-cooled DOHC four-stroke, with forward-positioned straight intake, delivers massive power specifically tuned for cross country racing, to challenge for race victories in the very competitive GNCC® and Hare Scrambles race series.

Innovative Engine DesignThe position of the engine moves the rotational mass of the cams towards the center of the bike which allows for a straight shot, down-draft intake and straight exhaust port for ultimate performance. This also keeps the airbox up high, out of dust and mud/water.

Wraparound Rear Positioned Exhaust LayoutLightweight YZ450F-spec exhaust system maximizes engine power while centralizing mass, thanks to the innovative wrap-around header design.

• Chassis/Suspension

Bilateral Beam Aluminum FrameYZ450F-based frame offers a compact size while optimizing mass centralization. With its extensively tested assembly of aluminum forgings and extrusions complete with model-specific engine mounting, the FX frame retains legendary Yamaha handling and response.

Advanced YZ450F Front ForkFully adjustable YZ450F-based KYB® spring-type fork with speed sensitive damping delivers precise, fade-free handling.

Cross Country ShockThe rear linkage and KYB® shock provides 11.6 inches of travel with adjusters for high- and low-speed compression damping, rebound and spring preload—and features a large piggyback reservoir for excellent damping and fade resistance.

• Additional

GYTR® Power Tuner ReadyAccessory GYTR Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and race conditions in a matter of seconds with the push of a few buttons.

Real World Tough FeaturesRugged plastic skid plate, quick-adjust clutch, aluminum handlebars and a side stand are standard for added rider convenience. Thanks to a WR-style fuel level sensor in the tank, the YZ450FX includes convenient fuel level and engine warning indicators on the handlebar.

Simplified ServicingRedesigned air cleaner cover provides tool-less access to the air filter, positioned at the front of the bike to avoid roost from the rear wheel. A high-quality sealed O-ring chain is tough and durable.