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 Speed Sensitive System KYB® 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.

Bold YZ Styling

Along with slim, aggressive bodywork, the bold graphics scheme further highlights the YZ family pedigree. Premium Yamaha graphics are now embedded to provide excellent durability and scratch resistance.

Exceptional Ergonomics

To increase rider confidence in challenging cross country conditions, smoothly integrated body panels, narrow fuel tank design, slim shroud width and flat seat all combine to enable greater freedom of movement forward and back, allowing the rider to easily shift body weight for better control.

GNCC®-Specific Features

Cross country focused suspension setup, optimized YPVS™ settings, lightweight Excel® wheels paired with Dunlop® Geomax MX33 tires, sealed O-ring chain, standard side stand and fuel tank petcock with reserve position all combine to make the perfect GNCC® racer.

High Performance Brake System

A high performance, lightweight braking system features large front pistons, rigid calipers, and 270mm front rotor and 240mm rear rotor, all combining to provide exceptional braking power and feel along with reduced unsprung weight.

Two-Stroke Power: Tuned for Enduro Racing

The YZ250X is optimized for the unique demands of Hare Scrambles and GNCC® racing. The Yamaha Power Valve System (YPVS™)-equipped 249cc two-stroke engine is mated to a wide-ratio five-speed transmission for the ultimate cross country power plant.

Specification:

ENGINE

• Engine Type - 249cc liquid-cooled 2-stroke; reed-valve inducted
• Bore x Stroke - 66.4mm × 72.0mm
• Compression Ratio - 7.9~9.4:1
• Fuel Delivery - Hitachi Astemo® Keihin PWK38S
• Transmission - Constant-mesh 5-speed; multiplate wet clutch
• Final Drive - Chain
• Fuel Capacity - 1.8 gal

CHASSIS

• Suspension/Front - KYB® Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel
• Suspension/Rear - KYB® single shock; fully adjustable, 12.4-in travel
• Brakes/Front - Hydraulic disc, 270mm
• Brakes/Rear - Hydraulic disc, 240mm
• Tires/Front - 80/100-21 Dunlop® Geomax MX33F
• Tires/Rear - 110/100-18 Dunlop® Geomax MX33