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2021 WR450F

Key Features

Features Gallery
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    New lighter and more powerful 450cc engine

    The all-new WR450F is equipped with Yamaha’s most sophisticated Off Road Competition engine from latest generation YZ450F motocross model. Significantly lighter and more powerful at all engine speeds, this lightweight and compact new powerplant runs with an enduro-specific ECU to deliver a wide spread of winning performance.

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    New cylinder head and piston design

    The all-new high compression cylinder head with new piston design is lighter and more compact than ever thanks to the repositioning of the camshafts. Featuring revised intake and exhaust port angles and equipped with lightweight magnesium covers, this new high-efficiency head gives stronger power at all revs and contributes towards the new model’s enhanced mass centralisation.

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    New lighter aluminium frame for sharper handling

    The all-new WR450F is equipped with the latest generation YZ450F aluminium bilateral beam frame that has been retuned for enduro. Manufactured with thinner main spars and thicker bottom tubes – as well as specially developed engine plates – this new frame gives improved feedback over bumps together with an enhanced feeling of connectivity with the track surface.

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    Industry-leading suspension systems

    The industry-leading speed sensitive front forks are the same design as used on the YZ450F and feature special enduro-specific settings and full adjustability – enabling you to fully exploit the increased engine performance. The lightweight link-type rear end also uses special enduro settings to give excellent traction with outstanding bump absorption.

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    Yamaha Power Tuner for easy smartphone tuning

    The WR450F pioneered the use of advanced digital technology by being the first enduro bike to feature onboard connectivity that enabled remote wireless engine tuning. Simply download the free app to your smartphone and you’ll be able to make instant changes to the fuel/air mix and ignition timing to suit the track conditions and weather – without even opening your toolbox!

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    Handlebar-mounted mapping switch

    Whether you’re racing or having fun on the trail, surface conditions and weather can change throughout the day. Pre-loaded with two maps, the handlebar-mounted mapping switch means that you can instantly select a different engine running mode while on the move.

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    Stronger stopping power

    As well as going faster and turning quicker, the all-new WR450F comes with stronger stopping power that can save valuable time in tight sections and gives you even more control. Featuring larger diameter caliper pistons, new brake pad material and a greater contact area between the disc and pads, the uprated braking system enables you to ride harder and brake later.

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    New slimline display

    The compact new multi-function instruments give you more information and are much easier to read. The high-contrast LCD display includes an odometer, two tripmeters, clock and timer/stopwatch and low fuel warning light – and the new fuel consumption indicator allows you to plan your fuel stops more accurately.

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    High efficiency angled radiators

    The all-new WR450F is equipped with large-capacity angled radiators that are designed to face the incoming air more directly for more effective cooling. And with a thermostatically controlled fan fitted as standard, the high-performance 450cc engine is designed to keep its cool in the most extreme conditions.

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    Tougher wide ratio 5-speed transmission

    Enduro is tough on the rider and the bike – therefore the all-new WR450F runs with a specially designed 5-speed wide ratio transmission. Featuring gears with a larger surface area that spread the load – together with a WR-specific shift drum and selector – this durable transmission and heavy duty clutch are built to deliver slick gear shifting – all day long.

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    Dynamic new Icon Blue colour

    In the off road world blue means Yamaha, and for 2021 every bike in the Off Road Competition range gets a fresh and exciting new look. Finished in a dynamic new Icon Blue and featuring blue front and side plates, the all-new WR450F gets the full-factory Pro look as standard!

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    Compact electric starter

    The WR450F’s compact electric starter ensures quick and easy starting on hills and tight situations – as well as improving your chances of getting the holeshot at cross country races with a dead engine start.

Technical Specifications

Download Factsheet
  • Engine
    Engine type
    Liquid-cooled, 4-stroke, 4-valves, DOHC
    Displacement
    450cc
    Bore x stroke
    97.0 mm x 60.8 mm
    Compression ratio
    13.0 : 1
    Lubrication system
    Wet sump
    Clutch Type
    Wet, Multiple Disc
    Ignition system
    TCI
    Starter system
    Electric
    Transmission system
    Constant Mesh, 5-speed
    Final transmission
    Chain
    Carburettor
    Fuel Injection
  • Chassis
    Frame
    Semi double cradle
    Caster Angle
    27º10
    Trail
    116 mm
    Front suspension system
    Telescopic forks
    Rear suspension system
    Swingarm, (link suspension)
    Front travel
    310 mm
    Rear Travel
    317 mm
    Front brake
    Hydraulic single disc, Ø270 mm
    Rear brake
    Hydraulic single disc, Ø245 mm
    Front tyre
    90/90-21 54M
    Rear tyre
    130/90-18 69M
  • Dimensions
    Overall length
    2,175 mm
    Overall width
    825 mm
    Overall height
    1,270 mm
    Seat height
    955 mm
    Wheel base
    1,480 mm
    Minimum ground clearance
    320 mm
    Wet weight (including full oil and fuel tank)
    119 kg
    Fuel tank capacity
    7.9 litres
    Oil tank capacity
    0.90 litres