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2027 YZ450FX

KEY FEATURES

NEW FOR 2027

Cross-Country Chassis Refinements

Refinements have been made to both the YZ450F engine and chassis for enhanced performance in lower-speed cross-country and enduro riding.

New Dunlop® Geomax AT82 Tires

New Dunlop® Geomax AT82 tires for a wide variety terrain for cross-country and enduro rides in wooded trails to wide-open deserts.

New Four-Stroke Engine

The new 2027 YZ450FX adopts the same high-performance four-stroke engine of the YZ450F.

YZ450F-Derived Frame

A new aluminum bilateral beam frame and advanced chassis from the YZ450F provides exceptional cornering and handling characteristics.

ENGINE

Compact Electric Starter

The YZ450FX features a compact electric starter system to minimize restart delays and add convenience.

Handlebar-Mounted Map Switchgear

Lightweight handlebar-mounted switchgear allows the rider to quickly select between preloaded engine maps.

Low-Fatigue Throttle Control

Throttle control has been revised to require less rider effort, reducing fatigue over longer, more demanding cross-country rides.

Noise-Compliant Tailpipe Design

Noise regulation compliance achieved through tailpipe revisions including a new tailpipe cap and updated pipe perforations.

Noise-Reducing Air Filter Assembly

A new air filter assembly, with the same outer resonator as the YZ450F, reduces overall noise for more comfortable riding.

Power Tuner App Connectivity

Yamaha's industry-leading Power Tuner App offers the ability to tune air/fuel mixture and ignition timing to suit rider preference.

Reduced-Load Clutch Springs

Modifications to the clutch springs have reduced lever load for flatter characteristics, improving engine control at lower speeds.

Revised AC Magneto Rotor

A revised AC magneto rotor increases inertial mass, reducing torque fluctuations for more low-end grunt and easier-to-use character.

Revised Cross-Country Engine

A new advanced four-stroke engine has been revised for the varying speed and terrain of cross-country racing.

Smooth-operating Hydraulic Clutch

The new YZ450FX adopts the YZ450F's hydraulic clutch, with a 15% reduced lever pull for reduced fatigue over longer rides.

Smooth-Power Cam Timing

Revised intake and exhaust cam timing angles deliver smoother power for cross country racing and reduces engine stalls at lower rpms.

CHASSIS/SUSPENSION

Class-Leading Suspension

The YZ450FX adopts the same components from the YZ450F's class-leading suspension, optimized for comfort at low-to-midrange speeds.

Cross-Country Suspension Tuning

Both front and rear suspension have been specifically tuned to enhance responsiveness from initial damping to the mid-stroke.

Dunlop® Geomax AT82 Tires

New Dunlop® Geomax AT82 tires are designed specifically for cross-country traction with a bi-directional tread pattern for varying terrain.

Durable Excel® Premium Wheels

Premium Excel® wheels are strong, lightweight and reduce unsprung weight without sacrificing durability.

Improved Rear Brake Pedal

A new rear brake pedal uses a revised lever ratio, while the pedal tip itself can now be replaced for easier maintenance.

Precision Aluminum Beam Frame

An advanced aluminum bilateral beam frame, strikes the perfect balance of precise cornering performance and handling stability.

Revised Cross-Country Engine Brackets

New engine brackets with a revised shape and thickness provide optimal chassis rigidity at low-to-midrange speeds of cross country riding.

Revised Lightweight Rear Brake

A new rear brake with a revised caliper, piston, brake disc and brake hose results in lighter overall weight and improved control.

Speed Sensitive KYB® Fork

Fully adjustable Speed Sensitive KYB® fork delivers exceptional balance between handling and bump absorption.

T51 Rear Sprocket

A new rear-wheel sprocket has been changed from T50 to T51, improving low-speed control with reduced likelihood of stalls.

Three-Cross-Spoke 18-Inch Rear Wheel

The YZ450FX's 18-inch rear wheel comes laced with a three-cross-spoke pattern for improved impact absorption and rider feel.

ADDITIONAL FEATURES

Embedded Durable Graphics

Premium competition-inspired graphics are embedded to provide excellent durability and scratch resistance.

PVC Pad, Kickstand & More

Additional features include a PVC handlebar pad, seamless seat cover, switchgear and a folding aluminum kickstand.

Tool-Free Air Filter Access

Sleek air cleaner cover provides tool-free access to the air filter for simplified servicing.

*Manufacturer's Suggested Retail Price (MSRP) shown. Does not include tax, title, prep or destination charges. Actual prices set by dealer.
**Fuel Economy is estimated.
***Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models.