The 449cc liquid‑cooled DOHC 4‑stroke Yamaha YZ450F Motocross Motorcycle sports industry‑leading suspension, electric start and the smartphone power tuner app ‑ so you can dial in your ride.
Yamaha’s Power Tuner app sets the versatility and accuracy tunability of the GYTR Power Tuner into your smartphone.
Make fueling and spark timing changes immediately and upload them to the bike via the onboard WiFi system for the latest in track-side tuning.
Using a compact starter motor and ultra-lightweight lithium battery, the Yamaha YZ450F Motocross Motorcycle delivers the comfort of push-button starting to the racetrack, for easy restarts under pressure, and relaxed riding when the clock isn’t ticking.
A high-compression cylinder head, aggressive cam profiles, forged piston, cylinder geometry and much more work together to provide Yamaha YZ450F Motocross Motorcycle riders the excellent balance of open-class power with controllability.
Yamaha’s respective beam aluminum frame features main spars, engine mounts and engine mounting position that combine mass and give an ideal balance between cornering grip and straight-line rigidity.
Yamaha proceeds to use spring-type forks with refined, speed-sensitive damping to provide industry-leading suspension performance accurately out of the box.
The new Yamaha YZ450F’s engine has been totally redesigned, now with a 500 rpm higher rev limit.
Among the modifications are new exhaust and intake port shapes, larger diameter titanium intake valves, crankshaft, balancer assembly, new piston, cylinder, and a switch from the wet sump to dry sump lubrication.
The combined effect of these features is more power across the whole rev range in a lighter, more compact engine.
New Yamaha Power Tuner App
Like having factory team support in your pocket, Yamaha’s groundbreaking Power Tuner mobile App is revised to be even more user-friendly.
New features include an intuitive “Simple Tuning” slide bar for engine mapping, Launch Control tuning and Traction, and a lap timer with engine and suspension tuning guides.
New Five-Speed Transmission
The new tri-shaft transmission layout vertically stacks the transmission shafts, raising the center shaft and forming a triangle between the crank, main shaft, and drive shaft for a lighter, more compact transmission.
All-New Aluminum Bilateral Beam Frame
Striking the excellent balance of precise cornering performance and handling stability, the fully redesigned aluminum bilateral beam frame has more than 10 different aluminum parts welded together.
This provides the opportunity to carefully tune the rigidity and flex features of each component to ensure competition-level performance.
The result is a better handling machine with a lighter feel, improved bump absorption, and increased traction, letting the rider enter corners with greater confidence and more line choices.
