2023 YAMAHA YZ125X,

Two-stroke Trailblazer;

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The all-new YZ125X sets the standard for light, fast two-stroke fun! The perfect entry into the world of XC and enduro competition.

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• Two-Stroke Power: Tuned for Enduro Racing: The YZ125X is optimized for the unique demands of Hare Scrambles and GNCC racing. The powerful new Yamaha Power Valve System (YPVS)-equipped 125cc two-stroke engine is mated to a six-speed transmission for the ultimate cross country powerplant.
• Lightweight Aluminum Frame: Ultra-lightweight YZ125-spec aluminum semi-double cradle frame is engineered to provide the perfect balance of rigidity and flex for competition-ready handling character and composure.
• Industry-Leading Suspension: Yamaha's renowned Speed Sensitive System KYB spring-type front fork is matched with a high performance KYB long-travel rear shock, both fully adjustable and tuned for the specific demands of cross country racing.
• GNCC-Specific Features: Cross country focused suspension setup, optimized YPVS settings, lightweight Excel wheels paired with Dunlop Geomax MX33 tires, sealed O-ring chain, standard side stand and fuel tank petcock with reserve position all combine to make the perfect GNCC racer.

• Powerful New 125cc Two-Stroke Engine: The new YZ125X's two-stroke engine represents an increase in power and usability over the 2022 model. Nearly every functional part of the engine is new—from the cylinder body, cylinder head, piston, piston pin, connecting rod, crankcase and expansion chamber, to a revised cylinder port shape and updated cylinder port timing. It's a change that is immediately apparent at the first crack of the throttle and throughout the entire rpm range.
• Tuned for GNCC Competition: The YZ125X utilizes a revised compression ratio, revised YPVS timing and a model-specific digital CDI unit compared to its motocross sibling—all focused on creating a broad, usable power delivery specifically suited to cross country and enduro-style competition.
• New Air Intake Design: Updated intake design allows for a straighter, more efficient draw of air into the intake tract.