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2017 YZ450F

Key Features

Features Gallery
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    Electronic launch control system (LCS)

    For holeshot-winning performance the YZ450F is equipped with a sophisticated launch control system (LCS). Activated by a button, this performance-enhancing electronic system makes precise engine rpm adjustments in order to limit rear wheel spin and control wheelies when powering hard out of the start gate in 1st and 2nd gear.

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    Smooth and easy engine character

    The YZ450F's reverse 4-valve cylinder head is one of the most advanced designs in its class. For higher combustion efficiency the latest model benefits from optimized valve timing together with a high lift exhaust cam and special valve springs that deliver a smooth and easy engine character in the low to mid-speed range.

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    Refined clutch and shift mechanism

    Important changes to the clutch and transmission are designed to reduce lap times by helping you to shift gear more quickly and efficiently. For fast and precise gear changes - even in high-pressure situations - the YZ450F features a super-smooth clutch boss as well as the latest design shift stopper lever.

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    Larger diameter 270mm front disc

    Braking power is just as important as engine power when it comes to winning races, and the YZ450F is equipped with a larger diameter 270mm front disc brake. Fitted with specially designed pads, this highly efficient front brake design delivers greater levels of stopping power with accurate feel and precise control.

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    Enhanced control

    The Air Oil Separate (AOS) front forks are amongst the best in the business, and for enhanced control and improved front wheel grip the latest YZ450F runs with optimized front suspension settings - while the Monocross rear suspension also features improvements that give more effective bump absorption and enhanced handling performance.

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    Refined chassis design

    New triple clamps give a revised fork offset that contributes towards the good balance of handling performance and shock absorbing capability. Repositioned footrests lower the rider's centre of gravity - and a wider swingarm pivot and steel engine mounts enhance the rigidity balance of the lightweight bilateral aluminium chassis.

Technical Specifications

Download Factsheet
  • Engine
    Engine type
    Liquid-cooled, 4-stroke, DOHC, 4-valves, Rear ward slanting single cylinder
    Bore x stroke
    97.0 mm x 60.8 mm
    Compression ratio
    12.5 : 1
    Maximum power
    Limited power version
    Maximum Torque
    Lubrication system
    Wet sump
    Clutch Type
    Wet, Multiple Disc
    Ignition system
    Starter system
    Transmission system
    Constant Mesh, 5-speed
    Final transmission
    Fuel consumption
    CO2 emission
    Fuel Injection
  • Chassis
    Semi double cradle
    Caster Angle
    Front suspension system
    Upside-down telescopic fork
    Rear suspension system
    Swingarm, (link suspension)
    Front travel
    310 mm
    Rear Travel
    315 mm
    Front brake
    Hydraulic single disc, Ø270 mm
    Rear brake
    Hydraulic single disc, Ø245 mm
    Front tyre
    80/100-21 51M
    Rear tyre
    110/90-19 62M
  • Dimensions
    Overall length
    2,180 mm
    Overall width
    825 mm
    Overall height
    1,280 mm
    Seat height
    965 mm
    Wheel base
    1,480 mm
    Minimum ground clearance
    330 mm
    Wet weight (including full oil and fuel tank)
    112 kg
    Fuel tank capacity
    Oil tank capacity