The YZ125's liquid-cooled 125cc two-stroke engine provides thrilling mid- to high-rpm power, along with supreme usability.

A revised compression ratio, revised YPVS timing and model-specific CDI unit create broad, usable power suited to cross country.

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

High-precision Hitachi Astemo® Keihin PWK38S carburetor provides clean, crisp throttle response and superior rideability.

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

A compact exhaust expansion chamber improves clearance in tight terrain while providing excellent exhaust efficiency.

Large-capacity radiator with dark louvers deliver an aggressive look and maximum cooling efficiency.