Yamaha YZ450F Receives Significant 2026 Updates

Yamaha has unveiled its 2026 YZ450F with the most comprehensive updates since the reverse-head engine's introduction. The model year brings a new frame, revised engine internals, and updated KYB suspension components. Australian pricing is confirmed at $13,499—a slight increase from 2025 reflecting the extensive changes.

The aluminium bilateral beam frame receives revised flex characteristics developed with input from Yamaha's factory supercross and MXGP teams. Lateral rigidity increases while vertical compliance improves, a combination achieved through new casting processes allowing variable wall thicknesses throughout the structure. The result, according to Yamaha, is improved corner entry precision without sacrificing the compliant feel over rough terrain that distinguishes the YZ450F from stiffer-feeling competitors.

Engine changes focus on broader, more usable power delivery. Peak output remains at approximately 55 horsepower, but the curve reshapes with stronger mid-range torque replacing some top-end emphasis. New intake tract geometry, revised camshaft timing, and updated fuel injection mapping together create what Yamaha terms "accessible aggression"—enough power for professional competition while remaining manageable for developing riders. The Power Tuner app gains expanded functionality, allowing more precise adjustments across a wider range of parameters than previous versions.