Review – Key Features – Features & Benefits – Specifications
2027 Yamaha YZ450FX: ULTIMATE WOODS RACER.
Introducing the new 2027 Yamaha YZ450FX…
Built to compete straight out of the box. The YZ450FX takes XC racing to the next level with championship DNA and class-dominating performance.
High Performance 450cc Four-Stroke Engine
The YZ450FX’s thrilling new liquid-cooled DOHC four-stroke engine is designed to provide broad power character and ease-of-use, with ECU settings tailored to enhance both low-end tractability and top-end power.
Industry-Leading Yamaha Power Tuner App
Like having factory team support in your pocket, Yamaha’s Power Tuner App is even more user-friendly with an intuitive “Simple Tuning” slide bar for quick engine mapping selections, new four-level Traction Control, a lap timer, and helpful engine and suspension tuning guides. Best of all, it’s free-of-charge.
Advanced Aluminum Bilateral Beam Frame
The newly updated advanced aluminum bilateral beam frame with YZ450FX-specific engine mounts provides just the right amount of strength and flex for the perfect balance of straight-line stability and cornering performance. The result is a better handling machine with lighter feel, more agility and increased traction, allowing the rider to tackle tight, technical courses with greater confidence.
Class-Leading Suspension
World renowned suspension performance straight out of the box. High-spec fully adjustable Speed Sensitive System KYB® coil spring-type fork provides exceptional bump absorption, and features toolless compression clickers for easy adjustment and fork covers to help prevent debris damage. The linkage-type rear suspension features a KYB® shock with cross-country focused damping characteristics to match the YZ450FX’s refined chassis.
Ergonomics Designed for Control
The YZ450FX’s slim, flat, compact body eases rider movement for improved control, including seamless, rounded features from seat edges and side covers to the narrow fuel tank and front shroud. The rider triangle is also designed to provide increased legroom between the seat and foot pegs for enhanced rider comfort.
2027 Yamaha YZ450FX Totalmotorcycle.com Key Features
- 450cc DISPLACEMENT
- 249 lb WET WEIGHT
- 37.6 in SEAT HEIGHT
- 57.9 in WHEEL BASE
- New Four-Stroke Engine
- YZ450F-Derived Frame
- Revised Cross-Country Engine
- Smooth-Power Cam Timing
- Smooth-operating Hydraulic Clutch
- Speed Sensitive KYB® Fork
- Revised Lightweight Rear Brake
- Noise-Compliant Tailpipe Design
- Revised AC Magneto Rotor
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.
2027 Yamaha YZ450FX Totalmotorcycle.com Features and Benefits
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.
2027 Yamaha YZ450FX – Totalmotorcycle.com Specifications/Technical Details
US MSRP Price starting at: $10,499 USD
Canada MSRP Price starting at: $13,749 CDN
Europe/UK MSRP Price starting at: £ See Dealer GBP (On The Road inc 20% Vat)
ENGINE
| Engine Type | 450cc liquid-cooled DOHC 4-stroke; 4 titanium valves |
| Bore x Stroke | 97.0mm × 60.8mm |
| Compression Ratio | 13.0:1 |
| Fuel Delivery | Mikuni® fuel injection, 44mm |
| Transmission | Constant-mesh 5-speed; multiplate wet clutch |
| Final Drive | Chain |
| Fuel Capacity | 2.1 gal |
CHASSIS
| Suspension/Front | KYB® spring-type fork with speed sensitive damping; fully adjustable, 11.8-in travel |
| Suspension/Rear | KYB® single shock; fully adjustable, 12.0-in travel |
| Brakes/Front | Hydraulic disc, 270mm |
| Brakes/Rear | Hydraulic disc, 220mm |
| Tires/Front | 80/100-21 Dunlop® Geomax AT82 |
| Tires/Rear | 120/90-18 Dunlop® Geomax AT82 |
DIMENSIONS
| LxWxH | 85.4 in x 32.5 in x 49.8 in |
| Seat Height | 37.6 in |
| Wheelbase | 57.9 in |
| Rake (Caster Angle) | 27° |
| Trail | 4.8 in |
| Max. Ground Clearance | 13.0 in |
| Fuel Capacity | 2.1 gal |
| Wet Weight*** | 249 lb |
OTHER
| Warranty | 30 Day (Limited Factory Warranty) |
*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.
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
