2027 Yamaha YZ450F

Chassis / Suspension

• ADJUSTABLE HANDLEBAR: An adjustable four-position handlebar is rubber-mounted for reduced vibration.
• HAND-ADJUSTABLE REAR SHOCK: The rear shock features a hand-operated low-speed compression clicker for simplified trackside adjustments.
• KYB® CONTROLLED DAMPING SHOCK: A KYB® shock provides a controlled damping feel and reduces bump reaction, providing confidence and control to ride harder for longer.
• LIGHTWEIGHT DURABLE WHEELS: Strong, lightweight wheels reduce unsprung weight without sacrificing durability.
• OPTIMIZED RIDER TRIANGLE: The rider triangle is optimized for increased legroom, including a carefully considered handlebar position for enhanced comfort.
• POWERFUL DUAL-DISC BRAKES: A large 270mm front and lightweight 220mm rear disc combine with Nissin calipers to provide exceptional stopping power and control.
• PRECISION ALUMINUM BEAM FRAME: An advanced aluminum bilateral beam frame strikes the perfect balance of precise cornering performance and handling stability.
• SLIM, RIDER-FRIENDLY BODYWORK: The YZ450F’s slim, flat, compact body and seamless, rounded features ease rider movement for improved control.
• SPEED SENSITIVE FRONT FORK: The YZ450F’s class-leading fully adjustable Speed Sensitive front fork provides exceptional feel and bump absorption.

Engine

• ADJUSTABLE LAUNCH CONTROL: An adjustable Launch Control System controlled through the Power Tuner App optimizes launches when the gate drops.
• ADVANCED DISC SPRING CLUTCH: The YZ450F’s advanced disc spring clutch design is compact, durable with smooth engagement, a consistent mesh point, and excellent feel.
• CLUTCH LUBRICATION: A clutch inner hub design enables lubrication over a large area for stable performance.
• COMPACT TRI-SHAFT TRANSMISSION: Tri-shaft transmission layout vertically stacks the transmission shafts for a lighter, more compact transmission.
• ECU ANTI-THEFT LOCK: An ECU lock function through the Power Tuner App helps prevent theft and unauthorized engine start-up.
• EFFICIENT INTAKE PORT: The intake port produces a strong tumble effect for efficient combustion and noticeable torque characteristics.
• HIGH-PRESSURE FUEL INJECTION: A 44mm Mikuni® throttle body is fed by a high-pressure electric pump to ensure optimum fuel atomization.
• LEGENDARY DOHC FOUR-STROKE ENGINE: The YZ450F’s advanced DOHC four-stroke engine is light, compact and world renowned for its incredibly broad pulling power.
• NOISE COMPLIANT DESIGN: The intake and exhaust design is noise compliant with FIM/AMA regulations at a comfortable noise level.
• 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.
• PREMIUM ENGINE COMPONENTS: Engine features include a reversed cylinder head layout, forged aluminum piston, titanium valves and dry sump lubrication.
• SLIM, COMPACT AIRFLOW DESIGN: Optimized intake path draws air from under the side covers and seat allowing for a slimmer and more compact shroud area.
• THREE-LEVEL TRACTION CONTROL: A three-level Traction Control System selectable within the Yamaha Power Tuner App maintains ideal rear wheel traction.

Key Features

• POWERFUL 450CC FOUR-STROKE ENGINE: The 2027 YZ450F’s advanced DOHC four-stroke engine is light and compact with world-renowned and incredibly broad pulling power across the entire rev range, thanks to its reversed cylinder head layout, forged aluminum piston, 39 mm titanium valves, lightened crank assembly and dry sump lubrication.
• ADVANCED ALUMINUM BILATERAL BEAM FRAME: The precisely tuned aluminum bilateral beam frame balances strength and flex to optimize stability and cornering performance and deliver better handling with lighter feel, more agility, and increased traction, allowing the rider to enter corners with greater confidence and more line choices.
• COMPACT AND LIGHTWEIGHT REAR BRAKE SYSTEM: An rear braking system provides linear stopping power with improved braking force and controllability in a smaller, lighter package. The size of the rear brake caliper and master cylinder pistons have been reduced, as well as the diameter of the rear brake disc (220 mm). The brake hose material and disc rotor bolts have also been revised, resulting in 180 g of weight savings.
• CLASS-LEADING SUSPENSION: harder for longer thanks to the YZ450F’s high-spec fully adjustable Speed Sensitive System KYB® coil spring-type fork, known as the gold standard in the 450 class with exceptional feel and bump absorption, combined with the high performance KYB® shock with hand-operated low-speed compression clicker that deliver excellent damping feel with less bump reaction.
• CUTTING-EDGE YAMAHA POWER TUNER APP: Yamaha’s free downloadable Power Tuner App provides unmatched smartphone tuneability by allowing 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.
• SLIM, COMPACT ERGONOMICS: The YZ450F’s slim, flat, compact body makes it easy for riders to move around improving control. The optimized rider triangle provides ample legroom between the seat and foot pegs, with a carefully considered handlebar position that allows for a natural posture and increased comfort. Styling includes a compact front number plate, two-piece side covers, sharp rear fender and YZ graphics.

Other Features

• COMPACT ELECTRIC STARTER: The YZ450F features a compact electric starter system to minimize restart delays and add convenience.
• EMBEDDED DURABLE GRAPHICS: Premium competition-inspired graphics are embedded to provide excellent durability and scratch resistance.
• GRIP-OPTIMIZED SEAT MATERIAL: A honeycomb-pattern seat material makes it easy for the rider to slide forward while holding them from sliding rearward.
• TOP-SPEC COMPETITION DETAILS: Additional top-spec details include wide foot pegs, quick-adjust clutch perch and gold drive chain with YZ450F-specific chain guide.