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2025 Big Bore MX Weapon

The ultimate 450 raises the bar even higher. Building on its best-in-class performance, the YZ450F boasts exceptional power and sharp handling in a compact, lightweight package that makes fast riders even faster.
Featuring a reversed cylinder head layout, forged aluminum piston, titanium valves, lightened crank assembly and dry sump lubrication, the YZ450F’s advanced DOHC four-stroke engine is light, compact and world renowned for its incredibly broad pulling power across the entire rev range.
And like having factory team support in your pocket, Yamaha’s groundbreaking Power Tuner App allows owners to adjust air/fuel mixture and ignition timing to tune engine performance for track conditions, record race log information and monitor a range of data such as maintenance and system diagnosis, engine run time and more.

  • Code

    YZ450F

  • Length

    2180

  • Width

    825

  • Seat_Height

    965

  • Wheelbase

    1480

  • Clearance

    350

  • Height

    1275

  • Weight

    109

  • Engine

    Liquid-cooled 4-stroke, DOHC, 4-valve

  • Displacement

    450.0

  • Bore

    97.0 × 60.8

  • Spec_Config

    Motorcycle

  • Compression

    13.0 : 1

  • Lubrication

    Dry sump

  • Fuel

    Fuel Injection

  • Ignition

    TCI

  • Starter

    Electric

  • Fuel_Tank

    6.2

  • Final_Trans

    Chain

  • Transmission

    Constant mesh, 5-speed

  • Frame

    Bilateral Beam

  • Suspension_Front

    Telescopic forks, 310mm travel

  • Suspension_Rear

    Swingarm (link suspension), 315mm travel

  • Brakes_Front

    Hydraulic single disc, 270mm

  • Brakes_Rear

    Hydraulic single disc, 240mm

  • Tyres_Front

    80/100-21 Dunlop Geomax MX33F

  • Tyres_Rear

    120/80-19 Dunlop Geomax MX33

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