Yamaha Announces 2027 YZ Lineup, Led by Significant Changes to YZ250F

New 2027 Youth Models 

For younger riders, the 2027 YZ85 and YZ85LW have undergone extensive revisions. New engine updates improve ease of use and rideability across the entire powerband, and new chassis components improve performance and reliability for growing riders. These changes help riders achieve higher racing competitiveness as their skills improve, while providing greater functionality at lower maintenance and operating costs. Key updates include:

• Engine updates include a new MotoTassinari VForce4R reed valve, updated power valve, and a new air filter shape that improve performance and power delivery across the entire rev range
• New carburetor settings and CDI ignition timing improve performance in varying riding conditions and elevations
• A heavier flywheel weight with increased inertia improves power delivery and feeling of acceleration
• New alloy cylinder head material, water pump impeller, and water pump cover contribute to cooling performance, combined with additional transmission revisions for improved durability and reliability
• New clutch friction plate material and judder springs improve clutch reliability and start performance
• New engine and swingarm brackets optimize chassis rigidity, providing confidence inspiring cornering and solid, stable handling through big bumps and high load scenarios
• Sealed front wheel bearings contribute to improved durability, reliability and lower cost of maintenance
• A new quick-action throttle with a smaller operating angle improves throttle response and rideability
• Water-resistant PVC handlebar pad to match the styling of the full YZ lineup

The new sealed front wheel bearings and water-resistant PVC handlebar pad from the YZ85 and YZ85LW also make their way to the new 2027 YZ65.

2027 YZ Motocross Lineup Availability

The 2027 motocross lineup is available to dealers starting this summer in team Yamaha Blue and Monster Energy Edition livery on full-size models:

• 2027 YZ450F: available this July for 10,299 MSRP
• 2027 YZ450F Monster Energy Edition: available this August for $10,499 MSRP
• 2027 YZ250F: available this September for $9,099 MSRP
• 2027 YZ250F Monster Energy Edition: available this September for 9,299 MSRP
• 2027 YZ250: available this June for $8,099 MSRP
• 2027 YZ250 Monster Energy Edition: available this August for $8,299 MSRP
• 2027 YZ125: available this June for $7,199 MSRP
• 2027 YZ125 Monster Energy Edition: available this August for $7,399 MSRP
• 2027 YZ85: available this July for $5,199 MSRP
• 2027 YZ85LW: available this July for $5,399 MSRP
• 2027 YZ65: available this July for $4,499 MSRP

New 2027 Yamaha YZ450FX

The 2027 YZ450FX adopts the updated design of the YZ450F, with a philosophical change to its base function that focuses on improving comfort and controllability in technical terrain, compared to previous YZ450FX models. Updates to the engine, frame, suspension and additional components deliver a striking balance between high-performance output and all-day rideability. The 2027 YZ450FX’s power character is focused on smoother delivery with more controllable low-RPM torque, making it easier to ride in technical conditions. The suspension characteristics have been specifically optimized to cater to the longer rides of competitive cross-country racing, providing more initial movement, comfort and compliance over slippery, rocky, and root filled terrain. Overall, the new YZ450FX is easier to ride faster, longer, especially on extremely technical trails. Key updates include:

• The new 450-class engine is optimized for controllability with greater usability in the low-to mid-range for tight woods and rocky trails through cam timing adjustments and a new AC magneto rotor
• A new 51T sprocket eases the need for precise throttle control, reducing fatigue on long, demanding cross-country rides
• A new hydraulic clutch with a 15% reduced clutch lever pull vs. 2026 YZ450F and flatter lever stroke delivers enhanced clutch control at lower speeds
• New YZ450F-derived frame for a responsive feel through corners, traction through acceleration and excellent straight-line stability
• New engine brackets contribute to a light, agile chassis feel that reduces rider fatigue through a variety of terrain.
• Same YZ450F KYB® suspension, tuned to enhance responsiveness from initial damping to mid-stroke for a more comfortable ride in technical sections while still offering high-speed stability
• Lightweight Dunlop® Geomax AT82 cross-country tires with a bi-directional rear tread pattern deliver optimal performance in diverse environments