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YZ-bred advanced aluminum frame
—carefully engineered from castings, forgings and extrusions—enhances handling while retaining legendary Yamaha feel and characteristics.
Highly evolved five-titanium-valved
engine starts with the push of a button
digital enduro computer
offers speedometer, clock, tripmeter, etc., in basic mode— or pace management functions such as timer, distance-compensating tripmeter, average speed, etc., when switched to race mode.
The WR450F is green sticker approved for California.
New for 2012:
New fuel injection system
delivers quick throttle response and smooth power delivery at nearly all altitudes and temperatures.
Compact YZ250F-based chassis
provides a lightweight feeling with plush suspension performance for the most demanding rider.
The new WR450F comes equipped with the
latest generation KYB® SSS YZ-type fork and shock
, dialed in for off-road use.
New slim bodywork with updated headlight design
gives the WR450F an aggressive, tough appearance.
All this, including:
tool-less access air box, Excel rims, 18" rear wheel, ProTaper® handlebars, wave-type brake rotors, electric start, on-the-fly clutch adjuster, and side stand
. This machine is ready for tight trails, woods, or desert fun.
449cc liquid-cooled DOHC
four-stroke with five titanium valves
delivers more broad power than ever, with high over-rev capacity and crisp, linear throttle response.
Special crank balance factor and AC generator provide super-smooth running. A piston oil-jet provides increased cooling for long life.
Digital CDI ignition system delivers precise spark and monitors engine speed to provide optimal timing for fast, strong response during hard acceleration.
Electric start provides easy restarts.
Wide-ratio five-speed transmission
uses strengthened gears and YZ450F-spec multiplate clutch—good for quick-hitting power in the woods, as well as eye-opening top-end power.
Dry-sump lubrication system carries the oil reservoir inside the engine cases, for excellent mass centralization and simplified plumbing.
Large-capacity radiators with reinforcements provide maximum cooling efficiency with great strength.
Aluminum muffler with
USFS-approved spark arrestor
looks trick and keeps things light.
Lightweight exhaust system maximizes engine power and allows hassle-free oil filter replacement.
No-tools airbox uses hinge-type quick-open lid. Battery rides low for excellent handling.
Works-style clutch lever features oversize barrel adjuster for easy, on-the-fly adjustability of lever/cable play.
YZ250F-inspired frame makes for a compact size while optimizing mass centralization. With its extensively tested assembly of aluminum forgings, castings and extrusions, the WR frame retains legendary Yamaha handling and response.
Removable aluminum rear subframe is constructed of square-section tube.
Fully adjustable YZ-based KYB® SSS air/oil-separate 48mm cartridge-type fork delivers precise, fade-free handling; fork protectors provide excellent tube protection.
Tapered swingarm adopts YZ-style linkage for controlled, compliant rear suspension action. Lightweight axle and holders reduce weight in a critical area.
The KYB® shock provides 12.0 inches of travel with adjusters for high- and low-speed compression damping, rebound and spring preload—and features a larger piggyback reservoir for excellent damping and fade resistance.
Wave-style brake discs reduce unsprung weight and provide excellent performance. Front and rear calipers with aluminum pistons deliver strong stopping power with progressive feel.
Lightweight 21-inch front and 18-inch rear Excel rims provide exceptional durability and help reduce unsprung weight for optimal suspension performance.
Premium Dunlop® knobbies offer unbeatable, competition-spec traction and excellent wear.
Cool YZ-derived bodywork and a thick seat look great and feel excellent on long rides. ProTaper® aluminum handlebar in forged triple clamp for light weight and great comfort.
Slim-design lightweight fuel tank holds 2.1 gallons.
One-piece, high-strength, plastic skidplate shaves weight and offers great protection.
Lightweight, 35-watt headlight and sweet LED taillight maximize visibility and draw less current.
Adjustable front brake lever.
Ultra-wide footpegs for more comfort.
Repackable aluminum muffler shaves weight.
Front wheel collar makes front wheel removal quick and easy.
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