Yamaha YZ125X 2026

2026 Yamaha YZ125X

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

Features may include:

• Powerful 125cc Two-Stroke Engine

The YZ125X's advanced, liquid-cooled 125cc two-stroke engine provides impressive acceleration, thrilling mid- to high-rpm power, along with supreme usability.

• 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.

• Efficient Air Intake Design

Intake design allows for a straighter, more efficient draw of air into the intake tract.

• Precise Fueling

Refined Hitachi Astemo® Keihin PWK38S carburetor features a power jet, throttle position sensor and 3D-map-controlled CDI unit for precise ignition timing. The result is clean, crisp throttle response, superior rideability and excellent over-rev character.

• Close-Ratio Six-Speed Transmission

An advanced, close-ratio six-speed transmission has wide gear teeth and optimized gear ratios for maximum performance.

• Lightweight Frame

Race-proven, highly developed aluminum semi-double cradle frame is engineered to provide the perfect balance of rigidity and flex for competition-ready handling character and composure. Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.

• Industry-Leading KYB® Fork

Tuned for the demands of cross country racing, the Speed Sensitive System 48mm inverted KYB® fork includes a leaf spring in the mid-speed valve for more precise damping and increased comfort, while offering up 11.8 inches of travel. Additionally, a scraper between the dust and oil seal improves reliability in cross country conditions. New for 2025, the fork now includes a hand-adjustable knob for quick, toolless compression adjustments.

• Advanced KYB® Shock

Fully adjustable KYB® rear shock features reduced-friction Kashima Coat™ internals, separate adjusters for high- and low-speed compression damping, a full lock oil rebound system for increased comfort, and 12.4 inches of travel. It all adds up to fantastic rear wheel control and class-leading capability.

• High Performance Brake System

A high performance, lightweight braking system features large front pistons, rigid calipers, and 270mm front rotor and 240mm rear rotor, all combining to provide exceptional braking power and feel along with reduced unsprung weight.

• Premium Excel® Wheels & Dunlop® Tires

Slick blue Excel® rims provide exceptional durability and a premium look. They come wrapped in high performance Dunlop® Geomax MX33 tires for improved cornering traction, stability and feel.

• Bold YZ Styling

Along with slim, aggressive bodywork, the bold graphics scheme further highlights the YZ family pedigree. Premium Yamaha graphics are now embedded to provide excellent durability and scratch resistance.

• Cross Country Ergonomics

A racy 'gripper'-type seat and narrow fuel tank combined with a tapered aluminum handlebar and adjustable mounts create greater freedom of movement and more comfortable ergonomics for riders.

• Cross Country Features

The YZ125X is focused on enduro competition with an 18-inch rear wheel, larger rear sprocket, side stand, sealed O-ring chain, reserve fuel petcock and a new water-resistant PVC handle bar pad, all adding up to exceptional cross country performance.

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