Performance Refined

The class benchmark. Yamaha took the championship winning YZ450F and made it even better with highly refined power and handling characteristics for a level of feel and control that unlocks a racer s full potential.

Performance Refined

The class benchmark. Yamaha took the championship winning YZ450F and made it even better with highly refined power and handling characteristics for a level of feel and control that unlocks a racer’s full potential.

Powerful 450cc Four-Stroke Engine

Featuring a reversed cylinder head layout, forged aluminum piston, 39 mm titanium valves, lightened crank assembly and dry sump lubrication, the 2026 YZ450F's advanced DOHC four-stroke engine is light, compact and world renowned for its incredibly broad pulling power across the entire rev range.

Advanced Aluminum Bilateral Beam Frame

The precisely tuned aluminum bilateral beam frame provides just the right amount of strength and flex for the perfect balance of stability and cornering performance. The result is a better handling machine with lighter feel, more agility and increased traction allowing the rider to enter corners with greater confidence and more line choices.

Class-Leading Suspension

The YZ450F's high-spec fully adjustable Speed Sensitive System KYB coil spring-type fork is recognized as the gold standard in the 450 class, providing exceptional feel and bump absorption. A new high performance KYB shock with new hand-operated low-speed compression clicker further enhances damping feel with less bump reaction, providing the confidence to ride harder for longer.

Cutting-Edge Yamaha Power Tuner App

Yamaha's groundbreaking Power Tuner App allows owners to adjust air/fuel mixture and ignition timing to tune engine performance for track conditions, record race log information and monitor a range of data such as maintenance and system diagnosis, engine run time and more. Features include an intuitive "Simple Tuning" slide bar for quick engine mapping adjustments, Traction and Launch Control tuning, lap timer, along with helpful engine and suspension tuning guides. Best of all, it's free-of-charge.

Slim, Compact Ergonomics

The YZ450F's slim, flat, compact body eases rider movement for improved control. The rider triangle is also optimized for increased legroom between the seat and foot pegs, with a carefully considered handlebar position for a more natural posture and enhanced rider comfort. Updated styling cues for 2026 now include a more compact front number plate, new two-piece side covers, sharper rear fender and new YZ graphics.

Key Features New for 2026

To accommodate the YZ450F’s new frame, revised fork settings offer enhanced ride quality.

A new KYB® shock enhances damping feel with less bump reaction, providing the confidence to ride harder for longer.

The new rear shock now includes a hand-operated low-speed compression clicker for simplified trackside adjustments.

A redesigned intake port produces a stronger tumble effect for more efficient combustion and improved torque characteristics.

Updated intake and exhaust design reduces noise in compliance with FIM/AMA regulations and increase rider comfort.

A new hydraulic clutch now comes standard providing a high quality feel, smoother feathering and a consistent mesh point.

A new clutch inner hub design also enables lubrication over a larger area for more stable performance.

Updated styling includes a slimmer, more compact front number plate, new two-piece side covers and sharper rear fender.

A new honeycomb-pattern seat material eases the rider’s ability to slide forward while holding the rider from sliding rearward.

An industry-first ECU lock function helps prevent theft and unauthorized engine start-up via a password-required lock.

A new frame design focuses on the balance of rigidity and flex characteristics for calmer front-end feel and improved cornering performance.

Engine

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

Tri-shaft transmission layout vertically stacks the transmission shafts for a lighter, more compact transmission.

The YZ450F's advanced disc spring clutch design is compact, durable with smooth engagement and excellent feel.

An adjustable Launch Control System controlled through the Power Tuner App optimizes launches when the gate drops.

A three-level Traction Control System selectable within the Yamaha Power Tuner App maintains ideal rear wheel traction.

Optimized intake path draws air from under the side covers and seat allowing for a slimmer and more compact shroud area.

A 44mm Mikuni® throttle body is fed by a high-pressure electric pump to ensure optimum fuel atomization.

Engine features include a reversed cylinder head layout, forged aluminum piston, titanium valves and dry sump lubrication.

The YZ450F's advanced DOHC four-stroke engine is light, compact and world renowned for its incredibly broad pulling power.

Chassis/Suspension

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

The YZ450F's class-leading fully adjustable Speed Sensitive front fork provides exceptional feel and bump absorption.

A new KYB® shock improves damping feel and reduces bump reaction for enhanced control.

A large 270mm front and 240mm rear disc combine with Nissin calipers to provide exceptional stopping power and control.

The YZ450F's slim, flat, compact body and seamless, rounded features ease rider movement for improved control.

The rider triangle is optimized for increased legroom, including a carefully considered handlebar position for enhanced comfort.

An adjustable four-position handlebar is rubber-mounted for reduced vibration.

Strong, lightweight wheels reduce unsprung weight without sacrificing durability.\

Specifications

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 - 1.6 gal

Chassis

Suspension/Front - KYB® spring-type fork with speed sensitive damping; fully adjustable, 12.2-in travel

Suspension/Rear - KYB® single shock; fully adjustable, 11.6-in travel

Brakes/Front - Hydraulic disc, 270mm

Brakes/Rear - Hydraulic disc, 240mm

Tires/Front - 80/100-21 Dunlop® Geomax MX33F

Tires/Rear  - 120/80-19 Dunlop® Geomax MX33

Dimensions

LxWxH - 85.6 in x 32.5 in x 50.2 in

Seat Height - 38.0 in

Wheelbase - 58.1 in

Rake (Caster Angle) - 27.5°

Trail - 4.8 in

Max. Ground Clearance - 13.6 in

Fuel Capacity - 1.6 gal

Wet Weight - 243 lb

Other

Warranty - 30 Day (Limited Factory Warranty)