After a laundry list of significant upgrades in 2018, the YZ450F gets refined for 2019 with optimized suspension settings to further enhance its on-track capability. With highlights including the wireless Power Tuner app, electric start, launch control, a potent fuel-injected four-stroke engine and a race-ready chassis, the ultimate motocrosser is ready to take you straight from the showroom floor to the podium.
Power: The 449 cc reversed, rear slanting engine receives new cams, valve springs and intake port. New piston with optimized underside ribs makes it lighter and stronger. The result is a higher compression ratio at 12.8:1 delivering a more power, than ever before.
Chassis: The YZ450F's lightweight, bilateral beam aluminum frame is mated to industry-leading KYB suspension with speed-sensitive damping out front and a specially-tuned linkage-type rear suspension for optimal handling, bump-absorption and straight-line acceleration on any terrain.
Power Tuner App: The groundbreaking Power Tuner app makes it easy to modify fuel mapping directly from your Smartphone based on track conditions, track maintenance intervals and share settings with teammates or friends. Easy to operate and free to download, the Power Tuner app uses onboard Wi-Fi to communicate with the bike's CCU and allows you to tune like never before.