The YZ450FX™ is based on Yamaha’s flagship motocross model—the YZ450F—with many added features and unique settings that make the YZ450FX the ultimate GNCC®/Woods racer.
Yamaha’s 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 via the onboard WiFi system for the ultimate in track-side tuning.
Utilizing a compact starter motor and ultra-lightweight lithium battery, the YZ450FX maintains the convenience of push-button starting, for effortless restarts under pressure, and relaxed riding when the clock isn’t ticking.
A high-compression cylinder head, forged piston, aggressive cam profiles, cylinder geometry and much more work together to give YZ450FX riders the ideal power spread in challenging GNCC® racing conditions.
Yamaha’s bilateral beam aluminum frame features main spars, FX-specific engine mounts and an engine mounting position that centralizes mass and provides an ideal balance between cornering feel and straight-line confidence.
Yamaha uses KYB® spring-type forks on all of our YZ® models, with industry leading function and easy set-up at the track—these forks are ready for the top step of the podium straight out of the box.