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Yamaha
Model year 2027
Yamaha's class-dominating YZ450F sets the bar for motocross performance, delivering highly refined power and handling characteristics to level up your game.
The advanced DOHC four-stroke engine is light and compact with world-renowned and incredibly broad pulling power across the entire rev range, while the precisely tuned aluminium bilateral beam frame balances strength and flex to optimise stability and cornering performance, delivering better handling with lighter feel, more agility, and increased traction allowing the rider to enter corners with greater confidence and more line choices.
The 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 aluminium piston, 39mm titanium valves, lightened crank assembly and dry sump lubrication.
The precisely tuned aluminium bilateral beam frame balances strength and flex to optimise 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.
Adding to rider comfort and ease of use is a hydraulic clutch for smooth, consistent engagement with less effort while eliminating the need for on-track adjustments. In addition, the clutch inner hub design lubricates over a larger area for more stable performance and longer life.
Optimised intake path draws air from under the side covers and seat allowing for a lighter, slimmer and more compact shroud area. The airbox cover sits low and is narrow, surrounded by the slim radiator shrouds.
Ride 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.
The YZ450F's slim, flat, compact body makes it easy for riders to move around improving control. The optimised 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.
Careful computer-aided design of each wheel’s cross-sectional profile shaves weight without sacrificing durability. The YZ450F's rear wheel comes laced with a three-cross-spoke pattern for improved impact absorption and rider feel.
An all-new 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 (220mm).
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.
Tri-shaft transmission layout vertically stacks the transmission shafts, raising the centre shaft and forming a triangle between the crank, drive shaft and main shaft for a lighter, more compact transmission.
An industry-first ECU lock function is adopted for theft deterrence, allowing owners to prevent unauthorised engine start-up via a password-required lock function accessed through the Yamaha Power Tuner app.
