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YFZ450R’s sharp-handling chassis and ultra-responsive engine have made it today's number one racing ATV. A race-bred assist and slipper clutch gives more precise control over corner entry speed for quicker lap times - while the uprated engine delivers superfast throttle response and hard-hitting high rpm power for holeshot-winning performance.

Sharp-designed bodywork gives the rider space to shift bodyweight during cornering or hard acceleration. And the light shocks make for super sharp handling.


*Images show optional accessories fitted.


  • Engine Type

    Liquid-cooled, 4-stroke, DOHC, 5-valve, single cylinder

    Displacement (cc) 449.0
    Bore x Stroke (mm) 95.0 x 63.4
    Compression Ratio 11.8 : 1
    Lubrication System Dry sump
    Fuel Management Fuel injection
    Ignition TCI
    Starter System Electric
    Fuel Tank Capacity (L) 10.0
    Final Transmission Chain
    Transmission Constant mesh 5-speed
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