Yamaha WR450F Off-Road Dirt Bike Order GYTR Performance Parts, Exhaust

The Yamaha WR450F Off-Road Dirt Bike

Key Features:
"Cycle World" magazine’s Best Enduro Bike of 2005 gets even better for `06.
Five titanium valves and 11,000 RPM make the WR450F the industry’s most advanced four-stroke enduro machine — and it starts with the push of a button.
Cool, new, 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.
California green sticker compliant.

2006:
New enduro computer is trick and easy to use.
New, two-position handlebar clamps give the aluminum Renthal bar 10mm of adjustment range.
New compression circuitry in 48mm forks absorbs even the tiniest bumps better than ever.
New seat foam provides more comfort.
New reinforced swingarm provides precise handling and tracking.

Engine:
Liquid-cooled, 449cc, 5-valve, DOHC, four-stroke with titanium valves delivers a flat, extremely broad powerband with high over-rev capacity and crisp, linear throttle response.
39mm Keihin FCR flat-slide carburetor with throttle position sensor (TPS) produces ultra-precise fuel/air mixing and lightning-quick throttle response.
Digital CD ignition system delivers more precise spark and monitors engine speed to ensure optimal timing for fast, strong response during hard acceleration.
Large-capacity radiator and louvers ensure maximum cooling efficiency.
Slick-shifting, wide-ratio, five-speed transmission with YZ450F-spec, multiplate clutch is geared specially for quick-hitting power in woods and hard-pulling top-end on wide-open trails.
Lightweight exhaust system maximizes engine power and allows hassle-free replacement of oil filter.
Aluminum muffler with USFS-approved spark arrestor looks trick and keeps things light.
Trick, works-style clutch lever features oversize barrel adjuster for easy, on-the-fly adjustability of lever/cable play.
Electric start ensures easy restarts.

Chassis/Suspension:
Super-strong, twin-spar frame is lightweight with great lateral rigidity for minimal flex and sharp handling.
Removable aluminum rear subframe constructed of square-section tube for reduced weight.
Fully adjustable air/oil-separate 48mm fork tubes deliver precise, fade-free handling; fork protectors provide greater tube coverage.
Tapered swingarm is lightweight and rigid for compliant rear suspension action.
Rear suspension system features fully adjustable Kayaba shock with 12.0 inches of travel and separate adjusters for high- and low-speed compression damping, rebound and spring preload.
Lightweight front and rear calipers with aluminum pistons combined with 250mm fully floating front and 245mm rear discs, 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 739 knobbies offer unbeatable, competition-spec traction and excellent wear.

Additional Features:
More weight savings come via, two-piece (part aluminum, part plastic) engine protector plates and thinner-walled engine guard construction.
Enduro-legal lighting front and rear increases versatility by maximizing nighttime and low-light visibility.
Adjustable front brake lever.
Cleated rear brake lever and folding shift lever tip offer superb grip and excellent durability.
Stylish Team Yamaha-inspired two-tone (black/blue) seat.
Repackable aluminum muffler shaves weight.
Renthal aluminum handlebar shaves weight and increases comfort.
Front wheel collar makes front wheel removal quick and easy.