2017 Yamaha YZ250F, 2017 Yamaha YZ250F 4 CHAMPIONS. 7 SHOOTOUTS. ZERO COMPETITION Reigning 2-straight MX and SX West Champion and winner of every major 250 shootout! More refined for 2017. The best just got even better. Features may include: Innovative Engine Design A liquid-cooled, DOHC 4-valve, fuel-injected engine with forward-positioned downdraft intake delivers class leading engine power, updated for 2017 to further improve top-end power. This engine design allows for unmatched mass centralization, concentrating the motorcycle s key components engine, fuel tank and exhaust system toward the center of the motorcycle achieving light and nimble handling performance. Updated Transmission New gear dogs, revised gear tooth designs and a host of smaller changes create a smoother overall transmission with improved shifting, as well as a stronger overall powertrain for improved durability. Bilateral Beam Aluminum Frame A Yamaha s renowned bilateral beam aluminum frame features compact overall dimensions that balance minimal weight with the strength and rigidity needed for race-winning performance. This frame features a new forged section at the swingarm pivot, and engine mounting brackets for tuned responsiveness, handling and unmatched lightweight feeling. Updated Suspension Settings Industry-leading, fully adjustable KYB® spring-type fork with speed sensitive damping features revised valving for improved suspension feel and balance. The KYB® rear shock also features settings optimized for ideal damping characteristics. GYTR® Power Tuner Ready Accessory GYTR Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and track conditions in a matter of seconds with the push of a few buttons, as well as monitor engine diagnostic codes.
2017 Yamaha YZ250X LIGHT WEIGHT X-COUNTRY RACER YZ250X is ultimate, 2-stroke off-road racing machine built to win x-country races. Features may include: Stunning Two-Stroke Power, Tuned for Cross-Country and 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 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 The YZ250X carries the racing heritage of the YZ250 motocrosser with aggressive 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 off-road specific 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. New 270mm Front Brake Larger 270mm front disc brake coupled with new pad material offers outstanding machine control and performance, with exceptional stopping power and controllability.
