2025 Yamaha YZ450FX

The 2025 Yamaha YZ450FX is a cross-country motorcycle based on the YZ450F motocrosser, designed for off-road competition.  Here's a breakdown of its features:   Engine and performance

• Powered by a 450cc liquid-cooled, DOHC, 4-stroke engine with titanium valves.
• It retains the YZ450F's broad power character with ECU settings optimized for off-road use, including enhanced low-end tractability and top-end power.
• Features a wide-ratio 5-speed transmission.
• Includes electric start for convenience. 

  Chassis and suspension

• Built with an aluminum bilateral beam frame with YZ450FX-specific XC-tuned engine mounts for a balance of stability and cornering performance.
• Equipped with fully adjustable KYB® Speed-Sensitive System (SSS) coil spring-type fork with 11.8 inches of travel.
• The linkage-type rear suspension utilizes a KYB® shock with damping characteristics tailored to the YZ450FX chassis, providing 12.0 inches of travel.
• Features a 18-inch rear wheel and Dunlop Geomax MX33 tires for optimal traction and durability.
• High-performance Nissin brake system with 270mm front and 240mm rear discs. 

  Additional features

• Includes the Yamaha Power Tuner App for engine mapping and tuning adjustments.
• Offers a Traction Control System with three levels.
• Additional features include a larger 2.1-gallon fuel tank, a composite engine guard, and a folding aluminum kickstand.
• The seat height is 10mm lower for improved maneuverability.