2021 YAMAHA YZ450F,

Tune In To Victory;

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Class-leading performance and suspension and the smartphone Power Tuner app make the YZ450F the bike of choice for race winners.

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• Ultimate Open Class YZ: More Power. Better Handling. Simply put, the 2021 YZ450F is better everywhere. With a more compact motor, a thoroughly refined and balanced chassis and improved ergonomics, the YZ450F gives the rider the ability to perform at their best, lap after lap.
• Yamaha Power Tuner App: Yamaha's free of charge and industry-exclusive Power Tuner app puts the flexibility and precision tunability of the GYTR Power Tuner into your smartphone. Make fueling and ignition timing changes instantly and upload them to the bike for ultimate track-side tuning, or use the handlebar-mounted switch to change fueling maps on the fly.
• Compact and Cutting-Edge Fuel-Injected Engine: Inside the ultra-compact new motor, a high-compression cylinder head, forged piston, aggressive cam profiles and much more work together to give YZ450F riders the best balance of open-class power with controllability. Plus, the electric start makes it even easier.
• Advanced Alloy Frame: Yamaha's bilateral beam aluminum frame features updated main spars, triple clamps and engine mounting points that centralize mass and provide an ideal rigidity balance between cornering feel and straight-line confidence.
• Class-Leading Suspension: Yamaha's spring-type forks with refined, speed-sensitive damping give industry-leading suspension performance straight out of the box.
• Cylinder Head: The YZ450F's potent motor includes combustion chamber geometry with steeper valve angles, aggressive cam profiles, a high compression piston with low friction rings, longer connection rod, larger exhaust head pipe connector, a high flow air filter, more efficient breather system and more—all while fitting under a smaller and lighter magnesium valve cover.
• Smoother Shifting: Gear widths and shapes improve shifting feel and precision without sacrificing Yamaha's legendary reliability under racing conditions.
• Bilateral Beam Frame: The YZ450F aluminum frame features flex characteristics that give riders the ultimate combinati