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Yamaha Motocross Bike – YZ250F



With a higher‑performing engine, an updated lightweight frame, and more, the YZ250F is engineered to race ‑ and win ‑ like a champion.


  • Advanced 250cc Four-Stroke
    The YZ250F™ is ready to roost the competition with race-winning features never before seen in the 250cc class.
  • Power Tuner App
    Yamaha’s free of charge and industry-leading Power Tuner app puts the flexibility and precision tunability of the GYTR® Power Tuner into your smartphone. Make fueling and ignition timing changes instantly and upload them to the bike for ultimate track-side tuning.
  • Electric Starter System
    Utilizing a compact starter motor and ultra-lightweight lithium battery, the YZ250F brings the convenience of push-button starting to the racetrack for effortless restarts under pressure and relaxed riding when the clock isn’t ticking.
  • Advanced Engine Design
    Featuring a high-spec piston, aggressive cam profiles, cylinder geometry and more, Yamaha’s reversed cylinder head layout works to give YZ250F riders the best balance of high-rpm power with a broad, useable powerband.
  • Tuned Aluminum Frame
    Yamaha’s bilateral beam frame features main spars, engine mounts and mounting position that are designed to centralize mass and provide an ideal balance between cornering feel and straight-line rigidity.
  • Class-Leading Suspension
    Yamaha’s spring-type forks with refined, speed-sensitive damping give industry-leading suspension performance straight out of the box.



Engine Type: 250cc liquid-cooled DOHC 4-stroke; 4 valves

Bore x Stroke: 77.0mm × 53.6mm

Compression Ratio: 13.8:1

Fuel Delivery: Mikuni® fuel injection, 44mm

Transmission: Constant-mesh 5-speed; multiplate wet clutch

Final Drive: Chain


Suspension / Front: KYB® Speed-Sensitive System inverted fork; fully adjustable, 12.2-in travel

Suspension / Rear: KYB® single shock; fully adjustable, 12.5-in travel

Brakes / Front: Hydraulic disc, 270mm

Brakes / Rear: Hydraulic disc, 240mm

Tires / Front: 80/100-21 Bridgestone® Battlecross® X20F

Tires / Rear: 100/90-19 Bridgestone® Battlecross® X20R


L x W x H: 85.6 in x 32.5 in x 50.6 in

Seat Height: 38.2 in

Wheelbase: 58.1 in

Rake (Caster Angle): 26°

Trail: 4.7 in

Maximum Ground Clearance: 13.2 in

Fuel Capacity: 1.6 gal

Wet Weight***: 234 lb


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