Innovative Engine Design
A liquid-cooled, DOHC 4-valve, fuel-injected engine with forward-positioned downdraft intake delivers class leading engine power. This design allows for unmatched mass centralization, concentrating the motorcycle’s key components—engine, fuel tank and exhaust system—toward the center of the motorcycle achieving light and nimble handling performance.
The transmission gears, dogs and shift mechanisms are designed to smooth gear changes and improve durability under the heavy demands of motocross racing.
Bilateral Beam Aluminum Frame
A Yamaha’s renowned bilateral beam aluminum frame features compact overall dimensions that balance minimal weight with the strength and rigidity needed for race-winning performance. This frame features a forged section at the swingarm pivot and engine mounting brackets for tuned responsiveness, handling and unmatched lightweight feeling.
Refined Suspension Settings
Industry-leading, fully adjustable KYB® spring-type fork with speed sensitive damping features advanced valving for improved suspension feel and balance. The linkage type rear suspension features a KYB® rear shock also features settings optimized for ideal damping characteristics.
GYTR® Power Tuner Ready
Accessory GYTR Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and track conditions in a matter of seconds with the push of a few buttons, as well as monitor engine diagnostic codes.
Yamaha’s unique embedded graphics are built into the bodywork for extended durability, resisting both peeling and damage.
Adjustable Handlebar Mounts
The 4-position adjustable handlebar mounts are rubber mounted to improve comfort and reduce handlebar vibration.
Race Winning Details
The YZ450F includes top-spec details, including 1-1/8” aluminum tapered handlebars, wide 55mm footpegs, a quick-adjust clutch perch, stylish black rims and gold chain.
Sleek air cleaner cover helps prevent contact with the quick-release quarter-turn Dzus® air box fasteners and provides tool-less access to the air filter, positioned at the front of the bike to avoid roost from the rear wheel.