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2013 Yamaha WR450F
The perfect combination of YZ250F-based suspension and 450F power makes for the ultimate trail machine...
The 2013 Yamaha WR450F offers 3 main advantages over its competition; an easy to ride demeanor, unparalleled reliability, and the versatility to win in a number of different racing disciplines. Featuring a proven 5-valve engine design, the biggest WR also sports a Keihin fuel injection system, a lightweight aluminum Bilateral Beam frame and YZ based suspesion.
YZ250F Style Chassis plus a 450 Fuel Injected Engine equals Perfection
The 2013 Yamaha WR450F features a powerful and reliable, high revving, five titanium valve engine with fuel injection, YZ250F bred advanced aluminum frame, latest generation YZ forks and shock and slim bodywork with updated headlight design gives the 2013 Yamaha WR450F an aggressive, tough stance. Plus it's green sticker approved for California.
You might not know where the trail will take you, but with the WR450F, you
know that you'll get there and back again.
Yamaha's WR450F is ready to tame the roughest single track or attack a Hare Scrambles course with its adjustable YZ based 48mm Speed Sensitive System fork and fully adjustable KYB piggyback shock. But the YZ connection does not stop there; the YZ250F inspired Bilateral Beam aluminum frame provides light, nimble handling while the YZ250F bodywork means fast, easy rider movements. Oh yeah, the YZ based brakes with wave -style rotors stop things in a hurry too. The WR450F, designed to deliver winning performance on the track and all day versatility and fun on the trail.
2013 Yamaha WR450F Key Features
Fuel injected, 5-valve, 449cc powerplant
Compact Bilateral Beam frame and YZ Speed Sensitive 48mm fork
A YZ-bred advanced aluminum framecarefully engineered forgings and
extrusionsenhances handling while retaining legendary Yamaha feel and
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 modeor 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.
2013 Yamaha WR450F Features and Benefits
Fuel injected, liquid-cooled, 449cc, DOHC, 5-valve, 4-stroke powerplant with super light titanium valves. Selected items such as camshafts, exhaust and ECU settings are specially designed for enduro type riding.
Super convenient electric starting means fast, sure starts and is backed up by a manual kick starter.
Hassle free automatic decompression system ensures fast restarts in
Magnesium cylinder head cover helps reduce weight.
Optimized cylinder inclination angle (4.5 degrees) to centralize mass and bring the center of gravity closer to the rider for mass centralization and light handling.
Optimized intake port shape increases the velocity of the incoming
charge for more complete cylinder filling and more power.
Titanium valves and load-reduced springs decrease weight by more than 40% over a conventional steel valve train and reduces reciprocating mass for faster-revving and smoother-hitting power delivery across the rev range.
The lightweight aluminum cylinder features a ceramic composite coating which is applied directly to the aluminum, eliminating the need for a heavy iron sleeve. The ceramic coating insures faster, more uniform heat dissipation, reduced friction and a longer service life.
Cylinder design features cutaways that allow the air trapped under
the piston to enter a side chamber (or cutaway) to reduce horsepower-robbing
The crankcase also utilizes cutaways to reduce "pumping losses". The crankcase cutaways match the cutaways in the cylinder.
Crankcase design features an integrated dry sump oil tank inside the front area of the engine cases. This design centralizes mass and reduces the centre of gravity for improved handing and a lighter feel.
The crankcases features a "tri-axis" design layout for the
crankshaft, main and drive axles. This tri-axis design keeps the crankcases
more compact while also centralizing mass for better handling. All of the
shafts are positioned as low as possible in the cases to maintain a low centre
Special cam shaft profiles provide outstanding low to mid range power well suited to enduro style riding. The WR450F offers a wide spread of linear torque from low to peak rpms.
Ball bearing style lightweight crankshaft provides fast throttle response.
Engine balancer shaft optimizes vibration for excellent rider comfort
and reduced fatigue during long rides.
Lightweight, short-skirt, forged piston offers great durability and reduced weight for fast engine response.
Piston oil cooler utilizes a pinpoint nozzle that directs oil to the desired portion of the cylinder and piston, to reduce piston, cylinder and rod temperatures for excellent durability.
Oil volume in engine has been optimized to reduce weight and oil "drag" related power losses.
Compact automatic cam chain tensioner reduces maintenance and mechanical
Keihin 42mm throttle body fuel injection system. This is an open loop system and features a throttle position sensor (TPS).
The 12-hole fuel injector maximizes fuel atomization for more complete combustion and great power output.
The fuel injection system has been designed with a capacitor, which allows hardcore riders the option of reducing even more weight by removing the battery and starter motor if desired.
The benefits of fuel injection include optimum fuel - air ratio regardless of outside air temperature or altitude. Other benefits include excellent starting with no choke to fuss with, improved throttle response, reduced fuel consumption and reduced emissions. There is a conveniently located idle adjusting knob on the side of the throttle body.
Compact, lightweight in-tank electric fuel pump
High capacity ACM (alternating current magneto) is used to power the FI system and other electrical components
Lightweight, compact, high powered 32 bit ECU. The ECU controls the fuel injection process and ignition timing.
Lightweight direct ignition coil is integrated into the spark plug cap to reduce weight and complexity
Wide ratio 5-speed transmission features gear ratios designed for enduro type riding and that match the torquey, linear, engine power characteristics of the WR450F engine.
Heavy-duty multi plate wet clutch.
Quick-access, lightweight magnesium outer clutch cover allows fast, easy access to the clutch.
Lightweight dual radiators with special design louvers direct cooling
air into the rads for maximum cooling.
Washable, dual-stage, foam air filter can be accessed without tools via "Dzus-type" fasteners.
Lightweight exhaust system features a stainless steel header pipe with titanium heat shield and an aluminum muffler. The exhaust features a resonator canister which helps create a more efficient exhaust pulse effect for improved low to mid power.
Lightweight aluminum muffler features a "serviceable", screen-type spark arrestor which prevents sparks from exiting the exhaust.
Oversize race-type "barrel adjuster" for easy, on-the-fly
adjustability of clutch lever free play.
Chassis and Suspension:
Compact "Bilateral Beam" aluminum frame centralizes mass
for exceptional handling and incredible cornering ability. This frame consists
of forged, extruded and panel aluminum parts. This frame is more compact than
the last generation and offers significantly improved rider - machine communication"
The rigidity balance of this "Bilateral beam" frame has been optimized for enduro type riding. It contributes to a feeling of lightness, agility and traction.
The head pipe (steering head), wheelbase, caster and trail dimensions
are optimized to accentuate the engine and frame characteristics. The benefit
is quick, direction changes with good stability.
Removable rear sub frame is constructed of square-section, lightweight aluminum pipe. Its detachable design allows easy access when servicing rear suspension components.
Lightweight, tapered, aluminum swingarm is produced using "hydro forming", a special method that uses high pressure water to form shapes. The swingarm design provides great overall chassis "balance" for precise cornering and a light handling feel.
48mm, adjustable inverted, Kayaba cartridge fork provide excellent suspension performance. This fork is based on the current YZ series with different setting specifically for enduro type riding. These forks feature a twin-chamber design which means the damper unit is in a separate structure which prevents aerated fork oil from entering the inner damper assembly and reducing its damping abilities. Since the inner damper is pressurized, it also eliminates bubbles forming in the oil. This fork design also features a Transfer Control Valve (TCV). The TCV enhances the damping force from mid to full stroke and improves bottoming characteristics. The benefit of TCV is more precise control throughout the full suspension stroke. The TCV is located on the upside of the spring and its function is controlled by piston speed, not piston position hence the term "Speed Sensitive fork".
Front wheel travel is 300mm (11.8").
Front fork adjustments include: 20-way compression damping and 20-way rebound damping. Optional fork springs are available through Genuine Yamaha parts.
Large plastic fork protectors wrap around the fork tubes for increased protection against dirt, mud and stone chips. These fork protectors are self-supporting to reduce friction for smoother fork operation.
Cast aluminum upper and forged aluminum lower triple clamps reduce weight while providing excellent strength.
Adjustable forged handlebar mounts allow the handlebars to be moved 10mm rearward if desired.
Monocross rear suspension system features a fully adjustable, Kayaba
piggy back style shock with separate adjusters for high- and low-speed compression
damping. Rear wheel travel is 294mm (11.6").
Shock adjustments include: spring preload, 20 clicks of low-speed compression damping, 2 turns of high-speed compression damping and 20 clicks of rebound damping.
Link-type rear suspension provides a rising rate (progressive) suspension function. The linkage design is virtually the same as YZ-F series of MX bikes.
250mm fully floating front disc brake with "wave style" rotor is squeezed by a twin piston Nissin caliper fitted with lightweight, aluminum pistons provides excellent braking performance.
"Shorty style" adjustable front brake lever
245mm rear disc brake with lightweight wave style rotor is squeezed
by a compact single piston Nissin caliper. The rear master cylinder is an
integrated design (fluid reservoir is integrated into the top of the master
cylinder to reduce weight) and delivers strong, progressive stopping power
with excellent control and feel.
Rugged, Excel 21" front and 18" rear rims provide exceptional durability and help reduce unsprung weight for optimal suspension performance.
High tech, lightweight digital meter assembly. This compact meter features: speedometer, dual tripmeters, odometer and a clock in the basic mode. Or in the "race mode", pace management functions such as timer, and distance compensating tripmeter.
YZ250F inspired body work. This "slim line" bodywork allows fast, easy rider movements and a lighter overall machine feel.
Stylish slim design headlight offers 35 watts of lighting power. The headlight beam is adjustable up and down.
Slim design compact LED taillight is tucked out of the way to prevent damage
7.5 litre black plastic fuel tank is designed to allow easy rider movements. The tank features a special "fluorination surface treatment" which reduces fuel permeation for improved environmental protection.
Lightweight aluminum kickstand is designed to allow lots of ground
Heavy duty one piece resin plastic engine guard. Only 3 bolts hold it in place for easy removal when washing the bike.
Extra wide 55mm stainless steel foot pegs provide excellent grip.
Low fuel warning light on main on / off ignition switch
Tapered steering head bearings for durability
Serrated rear brake lever and folding shift lever tip
Rugged, plastic, lower rear disc and rear caliper protectors
Sealed, low-maintenance battery is gel-filled type to prevent leaks in the event of a tip-over.
Waterproof starter button and engine kill switch are handlebar-mounted.
Lightweight chain guide / support helps reduce chance of chain derailment. Also helps protect rear sprocket damage too.
Heavy duty "O" ring chain for durability
2013 Yamaha WR450F - USA Specifications/Technical Details
US MSRP Price: $8,290 (Team Yamaha Blue/White) USD
Type 449cc liquid-cooled DOHC 4-stroke; 5 titanium valves
Bore x Stroke 95.0mm x 63.4mm
Compression Ratio 12.3:1
Fuel Delivery Fuel Injection
Transmission Constant-mesh 5-speed; multiplate wet clutch
Final Drive Chain Drive
Suspension / Front Inverted fork; fully adjustable; 11.8-in travel
Suspension / Rear Single shock; fully adjustable, 11.6-in travel
Brakes / Front Hydraulic single disc brake
Brakes / Rear Hydraulic single disc brake
Tires / Front 80/100-21M
Tires / Rear 120/90-18M
Length 85.0 in
Width 32.5 in
Height 50.2 in
Seat Height 37.8 in
Wheelbase 57.7 in
Ground Clearance 13.2 in
Fuel Capacity 2.7 gal
Wet Weight*** 273 lb
Warranty 30 Day (Limited Factory Warranty)
*Prices and specifications subject to change without notice. Please read
your Owner's Manual and all labels before operation.
**Fuel economy estimates are based on US EPA exhaust emission certification data obtained by Yamaha. Your actual mileage will vary depending on road
conditions, how you ride and maintain your vehicle, accessories, cargo, and operator/passenger weight.
***Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel.
2013 Yamaha WR450F - Canadian Specifications/Technical Details
Canada MSRP Price: $8,999 CDN
Engine Liquid-cooled, DOHC, 5-valve (titanium), single
Bore and Stroke 95 x 63.4mm
Compression Ratio 12.3:1
Fuel Delivery Keihin 42mm throttle body F.I.
Lubrication Dry sump
Ignition / Starting TCI / Electric & Kick
Transmission Wide ratio 5-speed
Final Drive "O" ring chain
Suspension (Front) Adj. 48mm inverted fork /300mm (11.8") travel
Suspension (Rear) Fully Adj. Link Monocross /294mm (11.6") travel
Brakes (Front) 250mm floating disc
Brakes (Rear) 245mm disc
Tires (Front) 80/100-21
Tires (Rear) 120/90-18
Length 2,160mm (85")
Width 825mm (32.5")
Height 1,275mm (50.2")
Wheelbase 1,465mm (57.7")
Ground Clearance 335mm (13.2")
Seat Height 960mm (37.8")
Fuel Capacity 7.5 litres (1.7 Imp. gal.)
Wet Weight 124 kg (273.5lbs)
Colour(s) Yamaha Blue
± Fuel economy estimates are based on US EPA exhaust emission certification
data obtained by Yamaha and converted into Canadian measurements. Your actual
mileage will vary depending on road condition, how you ride, maintain your
vehicle, accessories, cargo and operator/passenger weight.
Specifications, appearance, and price of product are subject to change without notice.
* MSRP does not include freight, PDI (Pre Delivery Inspection), pre-rigging (boats), or taxes. Dealer may sell for less. See your local dealer for out the door pricing.
2013 Yamaha WR450F - UK/Europe Specifications/Technical Details
UK/European MSRP Price: £ See dealer for Pricing.
More information to follow shortly
2013 Yamaha WR450F - Australian Specifications/Technical Details
AU MSRP Price: $TBA AUD
More information to follow shortly
Specifications, features and prices to change by manufacturer without notice. All information correct as of posted date.