New 2025 Yamaha YZ125

More powerful, more capable, more advanced. Offering the ideal blend of performance, reliability and usability to develop the skills to win.

TOP FEATURES

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

The YZ125s renowned suspension performance offers unmatched levels of control, capability and comfort by way of the fully adjustable 48mm inverted KYB front fork, including a new hand-adjustable clicker for easier compression adjustment, and a fully adjustable KYB rear shock featuring reduced-friction Kashima Coat internals. It all adds up to class-defining suspension and handling characteristics.

Lightweight finely tuned chassis means nimble handling, more control and less rider fatiguethe ideal platform for advancing skills and gaining confidence.

ENGINE

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

Patented Yamaha Power Valve System (YPVS) combines crisp, hard-hitting bottom-end acceleration with strong mid-range and top-end.

High-precision 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.

CHASSIS/SUSPENSION

Race-proven, highly developed aluminum semi-double cradle frame is engineered to provide just the right amount of strength and flex for the perfect balance of stability and cornering performance. Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.

Lightweight finely tuned chassis means nimble handling, more control and less rider fatiguethe ideal platform for advancing skills and gaining confidence.

The Speed Sensitive System 48mm inverted KYB fork includes a leaf spring in the mid-speed valve for more precise damping and increased performance and comfort, while offering up 11.8 inches of travel. New for 2025, the fork now includes a hand-adjustable knob for quick, toolless compression adjustments.

ADDITIONAL FEATURES

Complete with an aluminum handlebar, two-position adjustable handlebar clamp, new water-resistant PVC handle bar pad, wide foot pegs, gripper seat, adjustable clutch lever with works-style cable adjuster and lightweight rear sprocket design, the YZ125 is competition-ready straight out of the crate.