YAMAHA UNVEILS ALL-NEW YZ250X - Enduro Tyres

YAMAHA UNVEILS ALL-NEW YZ250X

YAMAHA UNVEILS ALL-NEW YZ250X

Big news from Yamaha – they’re back in the two-stroke off-road game. Meet the all-new YZ250X…

First they optimised their YZ250F for off-road and enduro competition with the YZ250FX and WR250F models. Now Yamaha have turned their attentions to their 250cc two-stroke motocross machine, launching the all-new woods machine that is the YZ250X.

So what exactly is it? A YZ250 that’s been modified for cross-country and enduro competition. Featuring cylinder and power valve modifications (over the YZ250), model specific CDI settings, a wide ration five-speed gearbox, an 18’ rear wheel, off-road specific suspension settings, a side stand and fuel tap that features a reserve position…

If you think it looks all but identical to the YZ250 that’s because it is. Here’s what Yamaha has to say about their new quarter litre off-road weapon…

TOP FEATURES

Stunning Two-Stroke Power, Tuned for Cross-Country and Hare Scrambles Racing

All new for 2016: optimized for the unique demands of Hare Scrambles and GNCC® racing. The YPVS™-equipped 249cc two-stroke engine is combined with a wide-ratio five-speed transmission for the ultimate Cross-Country power plant.

Motocross-Derived Aluminum Frame

Ultra lightweight YZ250-spec frame features carefully engineered combination of aluminum castings, forgings and extrusions for the perfect balance of rigidity and flex, with industry-leading fully adjustable, KYB® speed sensitive spring-type suspension tested and tuned specifically for the needs of cross-country racers.

Racing Style and Ergonomics 

Aggressive bodywork carries the racing heritage of the latest YZ250 motocrosser with updated styling from front fender to the rear brake protector, and is ready to race out of the crate, complete with an aluminum tapered handlebar, YZ-F-style foot pegs, gripper seat, and Excel® rims with Dunlop® tires.

GNCC-Specific features

18-inch rear wheel, sealed O-ring chain, wide ratio transmission, narrow expansion chamber, off-road focused tires and suspension settings, a standard side stand and fuel tank petcock with reserve position.

ENGINE

GNCC-Tuned YZ250 Power

Legendary YZ250 249cc liquid-cooled reed-valve-inducted two-stroke engine a new compression ratio, new exhaust port timing, new Yamaha Power Valve System (YPVS), and a new model-specific CDI unit – all focused on making a wide, controllable power character ideal for cross-country racing.

Revised Power Valve

Patented Yamaha Power Valve System – now with broader opening timing for even smoother power – combines bottom-end acceleration with strong midrange and eye-opening top-end.

Compact Exhaust Pipe

New exhaust expansion chamber is designed especially for the new YZ250X, and is narrower both horizontally and vertically, while still providing excellent exhaust efficiency.

Advanced Carburetor

38mm Keihin® PWK carburetor with throttle position sensor provides precise fuel/air mixing and crisp throttle response throughout the powerband.

Racing Intake System

Special-design carbon fiber reed-valve petals improve throttle response and engine performance across the entire rpm range.

Wide-Ratio Gearing

Smooth-shifting, five-speed, wide-ratio transmission ensures proper gearing from tight woods sections to wide-open fire roads. A new clutch push lever reduces effort to minimize fatigue, too.

YZ250 Cooling System

Large-capacity radiator features a ten-row core with four louvers for maximum cooling efficiency.

Updated Digital Ignition

Digital CDI ignition system delivers precise spark for faster, stronger response anywhere in the powerband, specifically tuned for the needs of the new YZ250X.

Motocross-Style Controls

Trick, works-style clutch lever features race-spec barrel adjuster for on the fly adjustability.

CHASSIS/SUSPENSION

Proven Braking Performance

YZ250F-style front-brake caliper and a large 270mm wave-style front and wave style rear disc minimize unsprung weight and provide excellent stopping power.

YZ250-Based Frame

A carefully engineered, advanced aluminum frame and swingarm give the YZ250X the famous handling proven by the championship winning YZ250 motocross machine on tracks around the world.

Lightweight Subframe

Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.

Industry-Leading KYB® Fork

Industry-leading, fully adjustable KYB® spring-type fork with speed sensitive damping uses piston speed to control damping force for super-precise handling and a smooth ride, with minimal wasted stroke or abrupt shocks for the rider – all 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.

Enduro-Specific Wheels and Tires

Cross-country-spec Dunlop® Geomax AT81 tires front and rear are ready to head straight to the races. An 18-inch rear tire has a taller sidewall to improve comfort and reduce pinch flats.

ADDITIONAL FEATURES

Cross-Country Ergonomics

A racy “gripper” type seat and narrow fuel tank combine with a tapered aluminum handlebar and adjustable mounts to create greater freedom of movement and more comfortable ergonomics for riders.

Cross-Country Features

Off-road focused tires with an 18” rear wheel, wide-ratio gearing, a standard side stand, sealed O-ring chain and a reserve fuel petcock.