2015 Yamaha WR450F

Key Features

• A 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.
• Highly functional 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.

Engine

• 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.
• Fuel injection system delivers quick throttle response and smooth power delivery at nearly all altitudes and temperatures.
• Dry-sump lubrication system carries the oil reservoir inside the engine cases, for excellent mass centralization and simplified plumbing.
• Digital TCI ignition system delivers precise spark and monitors engine speed to provide optimal timing for fast, strong response during hard acceleration.
• Large-capacity radiators with reinforcements provide maximum cooling efficiency with great strength.
• 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.
• Lightweight exhaust system maximizes engine power.
• Aluminum muffler with USFS-approved spark arrestor looks trick and keeps things light.
• Works-style clutch lever features oversize barrel adjuster for easy, on-the-fly adjustability of lever/cable play.
• Electric start provides easy restarts.

Chassis/Suspension

• YZ250F-inspired frame makes for a compact size while optimizing mass centralization. With its extensively tested assembly of aluminum forgings and extrusions, the WR frame retains legendary Yamaha handling and response.
• Compact YZ250F-based chassis provides a lightweight feeling with plush suspension performance for the most demanding rider.
• Removable aluminum rear subframe is constructed of square-section tube.
• Fully adjustable YZ-based KYB® air/oil-separate 48mm cartridge-type fork delivers precise, fade-free handling; fork protectors provide excellent tube protection.
• The KYB® shock provides 11.6 inches of travel with adjusters for high- and low-speed compression damping, rebound and spring preload—and features a large 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.
• Repackable aluminum muffler shaves weight.
• Premium Dunlop® knobbies offer unbeatable, competition-spec traction and excellent wear.

Additional Features

• Cool YZ-derived bodywork and a thick seat look great and feel excellent on long rides. Tapered aluminum handlebar in forged triple clamp for light weight and great comfort.
• All this, including: tool-less access air box, Excel® rims, 18” rear wheel, tapered aluminum handlebars, wave-type brake rotors, electric start, on-the-fly clutch adjuster, O-ring chain and aluminum side stand. This machine is ready for tight trails, woods, or desert fun.
• Slim-design lightweight fuel tank holds 2.1 gallons.
• One-piece, high-strength, plastic skidplate shaves weight and offers great protection.
• Adjustable front brake lever.
• Ultra-wide footpegs for more comfort.
• Repackable aluminum muffler shaves weight.
• Wheel collars make wheel removal quick and easy.