Whether cutting through tight technical trails or blazing across the wide-open desert, the class‑defining YZ450FX takes off‑road performance to new levels.
The YZ450FX is developed from Yamaha’s flagship motocross model—the YZ450F—with many added features and unique settings that make the YZ450FX the ultimate GNCC®/Woods racer. A handlebar-mounted map switch allows the rider to quickly select between preloaded engine maps—loaded and configured in the Power Tuner app—to account for changing riding conditions. The compact, powerful YZ450FX engine includes all the same race-developed technologies of the class-defining YZ450F motocrosser, tuned for cross-country performance. A host of go-fast innovations include steep valve angles, aggressive cam profiles, high-compression forged pistons with low friction rings, high-flow intake, and exhaust systems—all thoughtfully packaged to optimize mass centralization.
Engine Type: 450cc liquid-cooled DOHC 4-stroke; 4 titanium valves
Bore x Stroke: 97.0mm × 60.9mm
Compression Ratio: 13.0:1
Fuel Delivery: Mikuni® fuel injection, 44mm
Transmission: 5-speed; multiplate wet clutch
Final Drive: Chain
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50% Off Service Plans.
Employee pricing on all gear and accessories on the day of sale.
Financing for everyone.
Call Cycle Springs Powersports for all your Dirt Bike, Motocross, Enduro & MX Motorcycle questions! 727-771-1211