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displacement:
125ccfuel capacity:
7Lseat height:
980mmwet weight:
96kgfinal drive:
Chaintransmission:
6 SpeedYamaha's lightweight screamer, the YZ125, delivers raw revving power, snappy two-stroke fun, and responsive handling, wrapped in iconic Monster Energy livery.
Out-of-the-box competition. Yamaha's advanced, liquid-cooled 125cc two-stroke engine is ready to dominate with Yamaha's patented Power Valve System (YPVS) providing impressive acceleration and thrilling mid- to high-rpm power, along with supreme usability.


A close-ratio six-speed transmission has a wider transmission gear tooth width and optimised gear ratios for maximum performance.
Close-ratio six-speed transmission has wider transmission gear tooth width and optimised gear ratios for maximum performance.
Race-proven, highly developed aluminium 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. The removable aluminium rear subframe is constructed of square-section tubing for reduced weight.
The high-performance braking system features a 270mm front rotor, a 240mm rear rotor, large front pistons and rigid calipers, all combining to provide exceptional braking power and feel.
Complete with an aluminium handlebar, two-position adjustable handlebar clamp, wide footpegs, 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.
High-precision Hitachi Astemo® Keihin PWK38S carburettor 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.











