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YFZ450R

Racing is about being the best. And that's an attitude reflected in the design of every Yamaha Sports ATV.

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It’s all about the race.

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!

At a glance

  • Light action throttle lever
  • First ATV in its class with a slipper clutch
  • Lightweight piggyback shocks for precise handling
  • Dual front discs with wave type rear disc
  • High compression engine for explosive performance
  • Shock calibration matches tyre character perfectly
  • Cam design for strong high rpm power feeling
  • 32-bit fuel injection for instant response
  • Lightweight weldless hybrid aluminium frame
  • Cast aluminium swingarm with piggyback rear shock
  • Quick-release fasteners for easy bodywork removal
  • Roomy bodywork and padded seat shape for comfort

Download Factsheet

Charakteristikos

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
Final transmission
Sealed O-ring chain, eccentric adjustment
Front suspension system
Independent double wishbone, Piggy Back 3-way adjustable damper, 250 mm wheel travel, threaded preload adjustable dual-rate coil-over springs
Rear suspension system
Cast aluminium swingarm, Piggy Back 3-way adjustable damper, threaded preload adjustable coil-over springs, 280 mm wheel travel
Front brake
Dual ventilated disc with hydraulic twin piston callipers
Rear brake
Wave-type ventilated disc with twin piston callipers
Front tyre
AT21x7R10
Rear tyre
AT20x10R9
Overall length
1,795 mm
Overall width
1,240 mm
Overall height
1,065 mm
Seat height
810 mm
Wheel base
1,270 mm
Minimum ground clearance
115 mm
Wet weight (including full oil and fuel tank)
184 kg
Fuel tank capacity
10.0 litres

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