Stunning two-stroke power: tuned for cross country & Hare Scrambles racing
The YZ250X is optimized for the unique demands of Hare Scrambles and GNCC® racing. The YPVS™ equipped 249cc two-stroke engine is mated to a wide-ratio five-speed transmission for the ultimate cross country power plant.
Advanced motocross-derived chassis
Ultra-lightweight YZ250-spec frame features carefully engineered combination of aluminum castings, forgings and extrusions for the perfect balance of rigidity and flex. The industry-leading fully adjustable KYB® speed sensitive spring-type front fork is matched with a fully adjustable high performance KYB® long-travel rear shock, both tested and tuned specifically for the needs of cross country racers.
GNCC®-Specific Features
Cross country focused suspension setup and Dunlop® Geomax AT81 tyres, 45,72 cm rear wheel, wide ratio transmission, narrow expansion chamber, sealed O-ring chain, a standard side stand and fuel tank petcock with reserve position are perfect for GNCC® racing.
Racing style and ergonomics
The YZ250X carries the racing heritage of the YZ250 motocrosser with its aggressive styling from the front fender to the rear brake protector. Complete with an aluminium tapered handlebar, YZ-F-style foot pegs, gripper seat and Dunlop® Geomax AT81 tyres, the YZ250X is competition-ready straight out of the crate.
270 mm front brake
Large 270 mm front rotor coupled with high performance pad material offer excellent machine control and performance, with exceptional stopping power and controllability.
GNCC®-tuned YZ250 power
Based 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 valve
The 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 mid-range and top-end.
Narrow exhaust pipe
Unique 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.
Advanced carburettor
The 38 mm Hitachi Astemo® Keihin PWK carburetor with throttle position sensor provides precise fuel/air mixing and crisp throttle response throughout the powerband.
Racing intake system
Specially designed carbon fiber reed-valve petals improve throttle response and engine performance across the entire rpm range.
Wide-ratio five-speed transmission
Smooth-shifting wide-ratio transmission ensures proper gearing from tight woods to wide-open fire roads.
YZ250 cooling system
Large-capacity radiator features a ten-row core with four louvers for maximum cooling efficiency.
Digital ignition
Digital CDI ignition system delivers precise spark for faster, stronger response anywhere in the powerband, specifically tuned for the needs of the YZ250X.
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
Fully adjustable KYB® rear shock features 31,49 cm 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 challenging conditions.
YZ250-based frame
A carefully engineered aluminium frame and swingarm give the YZ250X the famous handling proven by the championship-winning YZ motocross riders on tracks around the world.
Lightweight subframe
Removable aluminium rear subframe is constructed of square-section tubing for reduced weight.
270 mm front brake
Large 270 mm front rotor coupled with high performance pad material offer excellent machine control and performance, with exceptional stopping power and controllability.
Enduro-specific wheels and tyres
Cross country-spec Dunlop® Geomax AT81 tyres are competition-ready, while the 45,72 cm rear tyre has a taller sidewall to improve comfort and reduce pinch flats.
Cross country ergonomics
A racy "gripper"-type seat and narrow fuel tank combined with a tapered aluminum handlebar and adjustable mounts create greater freedom of movement and more comfortable ergonomics for riders.
Cross country features
The YZ250X is focused on cross country competition with an 45,72 cmrear wheel, wide-ratio gearing, a standard side stand, sealed O-ring chain and a reserve fuel petcock.
