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Grizzly 450 Auto 4×4 IRS12

2012 Grizzly 450 Auto. 4×4 IRS

There’s a lot of Grizzly in this mid-size package.

Key Features:

  • Grizzly 450 Automatic 4×4 has the same great features as big brothers Grizzly 700 and 550, including four-wheel independent suspension, and it’s powered by a fuel-efficient liquid-cooled engine.
  • Industry-exclusive, fully automatic Ultramatic® transmission is the most advanced drive system in ATV-ing. An automatic centrifugal clutch maintains constant belt tension for reduced belt wear and class-exclusive all-wheel downhill engine braking in 4WD mode.
  • Industry-exclusive three-position On-Command® In/Out 4WD feature lets you switch between 2WD, limited-slip 4WD and class-exclusive fully locked differential 4WD—all with the simple push of a button. Override button allows engine to make maximum rpm in full Diff. Lock mode.
  • Class-exclusive fully independent long-travel four-wheel suspension features double-wishbone suspension front and rear with five-way preload-adjustable shocks for maximum control and comfort over rough terrain.
  • Ground clearance of 10.8 inches and high-impact plastic skidplate improve maneuverability and undercarriage protection.
  • Trick digital instrument panel boasts a multifunction LCD display with speedometer, odometer, dual tripmeter, hour meter, 4WD status, transmission position and clock.
  • Using a multi-disc system running in hydraulic fluid, the sealed rear wet brake combines strong, consistent stopping power and greatly reduced maintenance requirements.

Engine:

  • 421cc liquid-cooled, SOHC four-stroke single is rugged and powerful.
  • Semi-oval slide 33mm BSR Mikuni® carburetor and high-output DC-CDI ignition deliver fantastic throttle response and engine performance at all rpm.
  • Pushbutton electric starting is backed up by auxiliary recoil starter.
  • Stainless steel muffler and header design provides superior power characteristics, exhaust sound and durability.
  • Left-side–mounted (H, L, N, R, P) shift lever is easily accessible.
  • Large-capacity aluminum radiator provides maximum cooling efficiency and is positioned high in frame for optimal protection.
  • Compact engine design features a 45-degree cylinder angle for maximum ground clearance and lower seat height for quick, responsive steering and agility.
  • Gear-driven crankshaft balancer and rubber-damper engine mounts reduce vibration.
  • Specially designed drive system air intake vent helps prevent overheating and keep water and mud from entering drive case.
  • Tool-free air filter box for easy access and quick maintenance.

Chassis/Suspension:

  • Lightweight chassis features outstanding durability with superior rigidity for class-leading agility and handling.
  • Light steering and a class-leading turning radius combine for increased comfort and incredible maneuverability—even in 4WD.
  • Class-exclusive, fully independent four-wheel suspension features a double-wishbone suspension front and rear delivering 6.3 inches and 7.1 inches of travel, respectively, with five-way preload-adjustable shocks to ensure maximum tire contact—and comfort.
  • Using a multi-disc system running in hydraulic fluid, the sealed rear wet brake combines strong, consistent stopping power and greatly reduced maintenance requirements.
  • Large-diameter ventilated hydraulic front disc brakes deliver tremendous stopping power in a variety of conditions.
  • Direct front shaft drive eliminates U-joint for greater durability and more efficient power transfer when engaged in 4WD.
  • Heavy-duty composite front carry bar and CV joint guards help prevent damage to boot covers and won’t dent or rust.
  • Seat is extra plush, more than 3/4-inch thicker with softer foam than the previous design, results in more rider comfort at the same seat height with rider aboard as before.

Additional Features:

  • Grizzly 700-inspired front-end styling boasts convenient waterproof storage compartment on the front fender.
  • The water-resistant DC outlet is located to the side of the multifunction instrument panel for convenient access; automotivestyle receptacle handles a wide range of accessories.
  • Steel cargo racks with special, extra-durable wrinkle paint finish feature a combined cargo capacity of 264 pounds (88 front, 176 rear).
  • Available in four colors, including Realtree® AP Camouflage for true hunting performance.
  • 2-inch receiver hitch for outstanding towing capability.
  • Large-capacity, 4-gallon fuel tank has a built-in gauge and easy-to-reach petcock valve.
  • Water-resistant, large-capacity underseat storage box provides added convenience.
  • Wide, fully integrated floorboards keep rider’s feet dry and feature serrated footpegs for extra grip in wet conditions.
  • Large front and rear fenders with inner guards offer excellent mud/splash protection.
  • Easy-access, underseat marine-spec electrical components ensure maximum protection from the elements.
  • Dual, bright multireflector 30-watt Krypton bulb headlights with high and low beams; rear brake light.
  • Built in Newnan, GA, USA.
MSRP* $7,149 (Realtree AP Camo) Available from September 2009

$6,799 (Hunter Green) Available from November 2009

$6,799 (Steel Blue) Available from November 2009

Engine
Type 421cc, 4-stroke, liquid-cooled single; SOHC

Bore x Stroke 84.5mm x 75.0mm

Compression Ratio 10.0:1

Fuel Delivery Mikuni® 33mm BSR

Ignition DC-CDI

Starting System Electric w/auxiliary pull

Transmission Yamaha Ultramatic® V-belt with all-wheel engine braking/H, L, N, R, P

Drive Train Yamaha On-Command® pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive

Chassis
Suspension/Front Independent double wishbone; 5-way preload adjustment, 6.3-in travel

Suspension/Rear Independent double wishbone; 5-way preload adjustment, 7.1-in travel

Brakes/Front Dual hydraulic discs

Brakes/Rear Sealed oil bathed, multi disc

Tires/Front AT25×8-12

Tires/Rear AT25×10-12

Dimensions
Length 78.5 x 43.0 x 44.1 in

Seat Height 33.5 in

Wheelbase 48.5 in

Turning Radius 118 in

Ground Clearance 10.8 in

Fuel Capacity 4.0 gal

Wet Weight 628 lb

Rack Capacity 88 lb Fr./176 lb Rr.

Towing Capacity 1322 lb w/2-in receiver hitch

Other
Instrumentation Digital LCD multifunction display: speedometer, odometer, dual tripmeter, hour meter, clock, gear position

Lighting Dual 30W Krypton multireflector headlights & 21W/5W brakelight

Warranty 6 Month (Limited Factory Warranty)