CRF450R

2009 I CRF450R I Press Information

New grips with long tapered cushions and deep pre-cut wire grooves.

New fuel injection indicator for pre-race check.

New KYB rear damper. New, bigger (48mm) KYB front fork.

11. Large, Works-style 240mm front and rear disc brake rotors.

Low mass centralisation gives a highly controlled ride feel and makes jumping

and manoeuvring in the air easier.

Powerful 4-stroke 4-valve Unicam engine with new cam link type decompressor and new thin-walled crank case casting for reduced weight; plus new batteryless fuel injection/ignition system with automatic settings that provide consistent performance in differing altitudes.

Smooth clutch action decreases rider fatigue and increases control.

New steering damper re-valved for more linear damping with new design front fork.

Revolutionary Ergonomics Design includes a more open and ‘easy’ ride position.

New exhaust layout for lower weight and better mass centralisation.

Long swingarm and wide rear tyre for better traction and acceleration.

Improved fuel consumption.

New 5th generation cast frame is lighter, stronger and slimmer.

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CRF450R2009 Press Information

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CRF450R - 2009

Introduction

The meteoric rise of the invincible CRF450R has taken itto the highest realms of Supercross, motocross, desert,endurance, flat-track and Supermoto where itrelentlessly punishes the competition time and timeagain. Constantly stepping up its game, the 2009 modelis ready to dominate the battlefield once again witha new fuel injection system, more speed, more control,more reliability, more power and more performance.The only thing there’s less of is weight, making itthe lightest and most manoeuvrable machine in its class!

Faster lap times

Testing on a sandy, supercross-style circuit revealeda lap time that’s a scorching 2 seconds faster than thatdelivered by the 2008 model. As well as that all-importantweight reduction (a full 1.8 kg!), the engine has been re-engineered for easier riding, quicker response, bettercornering and smoother power delivery. Every singlecomponent has been revised for the ultimate masscentralisation. Dimensions are changed for bettertraction out of the corners matched by fasteracceleration. Even starting time is faster by 0.1 secondsfrom 0-10m, and 0.2 seconds from 0-50m.

Better jumping performance

The new CRF450R is slimmer, lighter and smoother, witha lower centre of gravity making control in the air easier.Aerodynamics have been honed for bullet-like projectionthrough the air. Improved mass centralisation and lighterweight minimise inertia feel for a sensation ofaccomplished control and expert handling. Torquefeeling is improved everywhere and overall performanceis fast, slick and exhilarating.

This latest evolution is set to fly the CRF flag high atthe pinnacle of motocross achievement, the peak of joy-giving aerobatic performance. Weekend warriors andfactory pros alike - get ready to test your limits and bringeven the toughest competition to its knees.

Colours

• Extreme Red (with White number plate, side coversand rear fender)

Features and Benefits

New for 2009

• New lightweight, batteryless fuel injection/ignitionsystem delivers enhanced performance, a wider, higherpower range and improved power delivery, as well askick-start capability.

• New fuel injection indicator integrated with enginestop switch shows pre-race conditions of the fuelinjection system for Motocross racers. The concept of anindicator for a pre-ride check is a first for motocross.(Honda first!)

• New fuel injection system features automatic settingsthat deliver the same engine character and driveability indiffering altitudes.

• Improved fuel consumption enables tank capacity tobe decreased (by 1.5L), thus facilitating more weightsavings.

• New cam link type decompressor reduces weight byintegrating decompressor and camshaft.

• New thin-walled crank case casting reduces wallthickness to 2.0mm and achieves a weight reduction of200g. (Honda first!)

• New plastic fuel pump module attached to bottomface of plastic fuel tank responds directly to fuel pressureand is placed to concentrate mass on motorcycle’scentre of gravity. (Honda first!)

• Rev limit increased 180 rpm.

• Large-diameter throttle body (50mm) delivers morepower and enhanced performance across the entirerange.

• Oil capacity decreased by 0.1 litres to allow fora lighter and more compact engine configuration.

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CRF450R - 2009

• New HRC settings kit, developed from HRC’s longyears of experience in racing technology, provides aneasy-to-use programming system with precise data forsetting up the machine to meet all race situations. Ignitiontiming and fuel mapping settings can be uploaded byconnecting the motorcycle to a computer and followingsimple step-by-step instructions. The system radicallysimplifies the setup process and will make tuningaccessible to a broader range of riders.

• New steering damper re-valved for more lineardamping with new design front fork.

• New 5th generation frame is manufactured by castingrather than forging of two components, resulting ina weight reduction of 410g and increased lateral andtorsional stiffness (4% lateral; 6% torsional) for optionalstrength and excellent response to rider input.

• New frame shape is slimmer overall with roundedlower parts providing 1mm more ground clearance.

• Revolutionary Ergonomics Design includes a moreopen and ‘easy’ ride position. Flatter seat to tankarea allows the rider to move from front to rear moreeasily. New profile is also smoother and narrower fromradiator shroud to air box to side panel, givinga smoother ride.

• New exhaust header design from the left side ofthe cylinder head exhaust port achieves optimal pipelength for the new fuel-injected engine. It also enablesplacement of the titanium muffler 115mm forwardcompared to the previous model, and contributes tomass centralisation.

• New, KYB rear damper and bigger (48mm) KYB frontfork give better stroke feel, action & control for a plushoverall feel and improved bump impact.

• New longer swingarm and new, wider rear tyrecontribute better acceleration and traction.

• New design grips feature longer tapered cushions anddeep pre-cut wire grooves for tighter, slip-free wire grip.

• New brake disc shape contributes 65g weightreduction (front 37g; rear 28g).

• New seat with newly textured side surface contributesto better grip.

• Improved clutch action gives smoother up and downshifting, decreases rider fatigue and increases control.

• New dimensions with centre of gravity moved lowerand longer swingarm give good front traction feeling andimprove acceleration.

• New plastic body parts with slim, aggressive stylingallow rider to move easily and feature newHonda Racing inspired colours and graphics.

Engine/Drivetrain

• Powerful advanced 4-stroke 4-valve Unicam enginechurns out 41.5kW of power at 8,500rpm and 50.3Nmof torque at 7,000rpm. Power is produced acrossa broader rpm-band for smoother, easier operation.

• Liquid-cooled 449cm³ Unicam engine pumps outnearly 92.4kW per litre while retaining its legendarysimplicity and dependability.

• Innovative Unicam valve train provides both the lightweight of a compact single-cam drive and an optimumcombustion chamber shape for maximum power at allengine speeds.

• Unicam valve train features a single carburizedcamshaft directly actuating two 36mm titanium intakevalves. The new cam link type decompressor executesvalve-lifting by causing the plunger that is built intothe camshaft to push the rocker arm on one side. Thiscontributes to the overall compactness and light weightof the design by integrating decompressor and camshaftweight.

• Lightweight titanium intake valves permit use ofsmaller valve springs and reduce overall engine height.Intake valve design has been revised for better masscentralization.

• Forged slipper piston is lighter than conventionaldesigns, for quick-revving response while maintainingexcellent cylinder sealing and high-rpm power.

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CRF450R - 2009

• Lightweight Ni-SiC cylinder lining ensures cooler andquieter operation for extended engine life.

• Auto decompression and hot restart system makestarting easy in all conditions.

• Twin-sump lubrication system separates oil supply tocrankshaft, piston and valve train from clutch andtransmission. This ensures a steady supply of cool oil tothe clutch, eliminates clutch and transmission materialcontamination of the engine oil, and reducesthe amount of circulating oil along with the oil pump size.

• New exhaust layout achieves lower weight andmaximum mass centralisation.

• Gear-driven balancer reduces vibration while alsodriving the water pump.

• Eight-plate clutch provides ample surface area tohandle the engine’s massive torque, while carefullymatched clutch springs provide a light feel at the lever.

• Entire engine assembly weighs only 27.1kg, 1.8kgless than that powering the 2008 model.

Chassis/Suspension

• Low mass centralisation gives a highly controlled ridefeel and makes jumping and manoeuvring in the aireasier.

• Compact and slim chassis cross-section combineswith new ergonomics for a smoother, easier ride.The area between seat and fuel tank is flat, and the fueltank cap size reduced, making it easier for the rider tomove along the seat.

• New rear frame design incorporates easier underseataccess to air filter.

• Front and rear wheels feature HRC Works-typealuminium spoke nipples for reduced unsprung weight.

• Front wheel features new stiffer axle collar, providingexcellent rigidity.

• Rear axle wall thickness is reduced (from 2.5 to 2.2mm) to save 38g of weight, while axle collar isstrengthened for better rigidity.

• Lightweight, and compliant 48mm inverted fork. Frontfork outer-tubes receive Kashima coating for low-frictionoperation. Fork offers 310mm of suspension stroke, and16-step rebound and 18-step compression dampingadjustability.

• New, fully adjustable rear damper with 320mm ofwheel travel, 18-step low-speed and 1.5-turn high-speed compression and 20-step rebound damping.

• Large 50mm-diameter rear damper cushion providesconsistent performance under demanding ridingconditions.

• Compact dual-piston front brake calliper designed forlight weight.

• HRC Works-type rear brake system integratesthe rear master cylinder and fluid reservoir, eliminatingconventional external reservoir and hose.

• Link-type front brake master cylinder provides strongbraking control in combination with a lightweight brakerotor.

• Large, Works-style 240mm front and rear disc brakerotors.

• Frame design allows large air intake ducts inthe sidecovers, enabling significant air flow in the mid andupper-rpm ranges.

Additional Features

• Unique lightweight and compact Honda ProgressiveSteering Damper (HPSD) developed by TeamHonda for improved cornering ability and reduced riderfatigue. HPSD features a compact and rugged hydraulicdamper attached between the steering head andthe lower triple-clamp to augment more aggressivesteering characteristics and assist straight-line handling.The damper’s progressive damping action smoothlyincreases with handlebar deflection, which producesvery natural steering characteristics and feel.

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• Rider ergonomics are optimised by adaptingthe handlebar, seat and footpeg height to placethe rider’s legs at the narrowest cross-section ofthe frame for improved comfort and handling feel.

• Brake pedal and shift lever designed to complementthe riding position. Brake pedal features optimised ratioto match integrated rear-brake master cylinder design.

• Wide, cleated stainless steel footpegs are self-cleaning, corrosion-resistant, provide excellent grip andfold for extra ground clearance.

• Rear brake pedal and shift lever made of lightweightaluminium.

• Adjustable front brake lever for maximum control.

• Quick-adjust clutch perch for easy cable adjustment.

• Aluminium Renthal 971 bend handlebar rubbermounted to reduce rider fatigue and improve comfort.

• Handlebar holders provide two different mountingpositions to match rider preference.

• Pirelli MIDSOFT 32 tyres provide improved tractionand cornering feel.

• Front disc brake cover helps protect rotor and calliperfrom damage.

• Removable rear sub-frame allows easy maintenance.

• Washable, two-stage foam air filter for optimal engineprotection and easy maintenance.

• Re-packable titanium silencer for maximumperformance and minimal noise.

• Comfortable, durable controls and high-qualityfasteners.

• Stainless steel clutch cable for long-life operation.

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CRF450R - 2009

Specifications

General

Model CRF450R

Mold Type ED-type

Engine

Type Liquid-cooled 4-stroke 4-valve SOHC single

Displacement 449cm³

Bore x Stroke 96 x 62.1mm

Compression Ratio 12 : 1

Max. Power Output 41.5kW / 8,500min-1 (95/1/EC)

Max. Torque 50.3Nm / 7,000min-1 (95/1/EC)

Fuel System

Carburation PGM-FI electronic fuel injection

Fuel Tank Capacity 5.7 litres

Electrical System

Ignition System Full transistor with digital ignition

Starter Primary kick

Drivetrain

Transmission 5-speed

Primary Reduction 2.739 (63/23)

Gear Ratios 1.800 (27/15)

2 1.470 (25/17)

3 1.235 (21/17)

4 1.050 (21/20)

5 0.909 (20/22)

6 3.692 (48/13)

Final Drive #520 roller chain

Frame

Type Aluminium twin-spar

Chassis

Dimensions 2,191 x 827 x 1,273mm

Wheelbase 1,491mm

Caster Angle 26° 52'

Trail 114.2mm

Seat Height 954mm

Ground Clearance 332mm

Kerb Weight 106.9kg

Suspension

Type Front

48mm inverted leading-axle twin-chambercartridge-type telescopic fork with 16-stepadjustable compression and 18-step rebounddamping; 310mm suspension travel

Rear

Pro-Link with damper, adjustable low-speed(18-step) and high-speed (1.5-turn)compression and 20-step rebound damping;320mm axle travel

Wheels

Type Front Aluminium rim/wire spoke

Rear Aluminium rim/wire spoke

Rim Size Front 21 x 1.60

Rear 19 x 2.15

Tyre Size Front 80/100 21 (51M)

Rear 110/90 19 (62M)

Brakes

Type Front240mm hydraulic disc with dual-pistoncalliper and sintered metal pads

Rear240mm hydraulic disc with single-pistoncalliper and sintered metal pads

All specifications are provisional and subject to change without notice.