2021 Yamaha YZ 250X

Engineered with all the reliability and durability you've come to expect from Yamaha, this 2-stroke was born to win Cross Country races.Features may include:ENGINEGNCC-Tuned YZ250 PowerBased on the legendary YZ250 249cc liquid-cooled reed-valve-inducted two-stroke engine, the YZ250X utilizes a revised compression ratio, exhaust port timing, revised Yamaha Power Valve System (YPVS) timing and a model-specific CDI unit—all focused on creating a wide, controllable power character ideal for cross country racing.Revised Power ValveThe YZ250X features the patented Yamaha Power Valve System—with broader opening timing compared to the YZ250 for smoother power—to combine bottom-end acceleration with strong midrange and eye-opening top-end.Narrow Exhaust PipeUnique compact exhaust expansion chamber is designed especially for the YZ250X to improve both horizontal and vertical clearance on tight, technical trails while still providing excellent exhaust efficiency.CHASSIS/SUSPENSIONYZ250-Based FrameA carefully engineered aluminum frame and swingarm give the YZ250X the famous handling that's been proven by the championship-winning YZ250 motocross machine on tracks around the world.Lightweight SubframeRemovable aluminum rear subframe is constructed of square-section tubing for reduced weight.270mm Front BrakeLarge 270mm front disc brake coupled with high-performance pad material offer outstanding machine control and performance, with exceptional stopping power and controllability.