Yamaha YZ450FX 2027

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-Spok

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