New 2021 Yamaha YZ125X Dirt Bike Motorcycle

The perfect step up to a full-size Cross Country machine, this lightweight 2-stroke is the pinnacle of performance on the race course. Features may include: ENGINE GNCC®-Tuned YZ125 Power Based on the legendary 125cc liquid-cooled, reed-valve-inducted YZ two-stroke engine, the YZ125X utilizes a revised compression ratio, Yamaha Power Valve System (YPVS) timing and a model-specific CDI unit—all focused on creating broad power delivery that suits off-road terrain and a wide range of rider skill levels. Revised Power Valve The YZ125X features the patented Yamaha Power Valve System—with broader opening timing compared to the motocross version for smoother power—to create a smooth balance of power across the rev range. Narrow Exhaust Pipe The compact exhaust expansion chamber provides both horizontal and vertical clearance on tight, technical trails while still providing excellent exhaust efficiency. CHASSIS/SUSPENSION Industry-Leading KYB® Fork The industry-leading, fully adjustable KYB® spring-type fork with speed-sensitive damping uses piston speed to control the damping force for super-precise handling and a smooth ride. With minimal wasted stroke or abrupt shocks for the rider, this bike is tuned for the demands of cross country racing. Smooth KYB® Shock Rear, fully adjustable KYB® shock features 12.4 inches of travel, separate adjusters for high- and low-speed compression damping and a full lock oil rebound system for increased comfort, control and fantastic rear wheel traction in off-road conditions. YZ-Based Frame A carefully engineered aluminum frame and swingarm give the YZ125X the famous handling that’s proven by the championship-winning YZ motocrosser on tracks around the world.