YFZ450R 2019 ATV

Taking ATV racing to the next level.

Serious racers will tell you that the Yamaha YFZ450R is the clear favourite with winning riders. Its sharp-handling chassis and ultra-responsive 450cc engine have made it today's number one racing ATV. Nothing else comes close

A race-bred assist and slipper clutch gives more precise control over corner entry speed for quicker lap times - while the race-bred engine delivers superfast throttle response and hard-hitting high rpm power for holeshot-winning performance.

Sharp-designed bodywork gives the rider space to shift the bodyweight during cornering or hard acceleration. And the lightweight piggyback shocks make for razor-sharp handling!

Available in:

2019 Yamaha YFZ450R EU Racing Blue Studio 001 03 Mobile

Details

  • Lightweight chassis
  • 32-bit fuel injection for instant response
  • Quick-release fasteners for easy bodywork removal
  • Dual front discs with wave-type rear
  • Roomy bodywork and padded seat shape for comfort
  • Ultimate sports ATV with superior handling
  • Special graphics & quick release fasteners
  • Cast aluminium swingarm with piggyback rear shock
  • Remote reservoir 3-way adjustable front shocks
  • 5-valve 4-stroke single cylinder engine
  • Lightweight weldless hybrid aluminium frame
  • Class-leading power-to-weight ratio

ATVs with engines up to 70cc are recommended for use only by riders 6 years and older and always with adult supervision. ATVs with engines of 70 to 90cc are recommended only for use by riders 10 years and older, and always under adult supervision. ATVs with engines of 90cc or greater are recommended for use only by riders 16 years and older.

ATVs are built to operate within their design limits. Safe towable weights, together with maximum carrying capacity are identified in the owner's manual if applicable. For durability, reliability, but most important of all, operator safety, under no circumstances should the recommended capacities be exceeded. Yamaha recommends that all ATV riders take an approved training course.

For safety and training information, see your dealer or call your Yamaha Distributor in your country. ATVs can be hazardous to operate.

Engine type

Single cylinder, liquid-cooled, 4-stroke, DOHC, 5-valves

Displacement

449cc

Bore x stroke

95.0 mm x 63.4 mm

Compression ratio

11.8 : 1

Lubrication system

Dry sump

Fuel system

Fuel Injection 42 mm EHS with ISC

Ignition system

TCI

Starter system

Electric

Transmission system

5-speed, manual slipper clutch

Drive system

2WD

Final transmission

Sealed O-ring chain, eccentric adjustment

Chassis

Front suspension system

Independent double wishbone, threaded preload adjustable dual-rate coil-over springs, 3-way adjustable damper, 250 mm stroke

Rear suspension system

Cast aluminium swingarm, threaded preload adjustable coil-over springs, 3-way adjustable damper, 280 mm stroke

Front brake

Dual ventilated disc with hydraulic twin piston callipers

Rear brake

Wave-type ventilated disc with twin piston callipers

Front tyres

AT21x7R10

Rear tyres

AT20x10R9

Dimensions

Overall length

1,795 mm

Overall width

1,240 mm

Overall height

1,065 mm

Seat height

810 mm

Wheelbase

1,270 mm

Minimum ground clearance

115 mm

Wet weight (including full oil and fuel tank)

184 kg

Fuel tank capacity

10.0 litres

Race-bred high-performance engine

2019 Yamaha YFZ450R EU Racing Blue Detail 001 03 Tablet

The YFZ450R's race-bred 5-valve 4-stroke 450cc engine features a compression ratio of 11.8:1 and high performance camshafts for instant throttle response and race winning high rpm power. The Air Induction System gives high fuel efficiency, reduced exhaust emissions and increased durability.

Electronic Fuel Injection

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For sharp throttle response the YFZ450R is equipped with a 42mm Mikuni throttle body which includes an ISC (Idle Speed Control) system for easy and reliable starting and warming up. This advanced system delivers instantaneous pick up and contributes towards reduced emissions.

Hybrid chassis engineering

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The YFZ450R uses a special combination of aluminium and steel in its frame and swingarm construction, and this innovative 'hybrid chassis' design offers a winning combination of low weight together with outstanding strength and an excellent rigidity balance.

Assist and slipper clutch

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The YFZ450R is the first ATV in its class to feature an assist and slipper clutch that's designed to partially disengage when you're downshifting quickly for a turn. By virtually eliminating the effects of engine braking, the slipper clutch allows the rider to control corner entry speeds using the brakes for enhanced control and reduced lap times.

Slick-shifting transmission

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The YFZ450R's 5-speed transmission is one of the slickest shifting systems in its class, and is fitted with an assist and slipper clutch - the first time this race-developed technology has been used in this category. The system makes shifting between gears even easier for quicker lap times and reduced fatigue.

Long-travel adjustable suspension

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For reduced unsprung weight this model is fitted with Kayaba piggyback front shock absorbers and a calibrated rear shock. These adjustable units give refined handling performance to give you the edge over other competitors.

Ergonomic design

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The YFZ450R is designed to work in perfect harmony with the rider for improved performance on the track and added comfort on the trail. The front and rear fenders are designed to give more space around the rider for easy weight shifting when cornering or accelerating - and the heel guards are also relocated further back.