Introducing the RM-Z450 with Suzuki fuel injection. Our engineers developed the RM-Z450 using experience gained developing fuel-injection systems for Suzuki's legendary GSX-R road race bikes and the championship-winning QuadRacer R450 ATV.
The result is the world's only mass-produced, fuel-injected motocross bike, designed to help you blow away the competition. As if that breakthrough technology weren't enough, our engineers used their experience developing Ricky Carmichael's championship-winning RM-Z450 to redesign the RM-Z450's chassis, suspension and brakes. That means it offers sharper handling, smoother suspension performance and more powerful braking than ever.
And just so no one misses the fact that you're on the hottest bike on the track, the RM-Z450 is also completely restyled, with new aerodynamic bodywork that's both sleek and functional. The all-new fuel-injected RM-Z450 - it gives you the power to dominate.
The motorcycle horsepower wars have been raging since the very first Yamaha V-Max was born in 1984 (as an ‘85 model). Back then the V-Max was rated at 145 hp—an astonishing number for the 80s. In many ways, the V-Max was the very first muscle bike. Yamaha paused production of the iconic power cruiser last year so it could focus on building a meaner-than-ever, all-new Max for 2009.
Its bulbous bodywork, jet-like air intakes and sculpted titanium exhaust canisters make the 2009 V-Max appear ready to battle with the most aggressive two- (and four-) wheeled hot rods. Armed with a 1,679cc V-Four and boasting a better power-to-weight ratio than that of a Ferrari Enzo, the Max uses everything from variable length intakes to an Exup exhaust valve and a slipper clutch to lay power to the pavement. The claimed crank output is awesome, at 197.4 ponies and 123 lb.-ft. of torque. A compact, 256 x 56 pixel organic electroluminescent multifunction display echoes the deep functionality of the Nissan GT-R’s Playstation-inspired instrumentation, and can be configured to display everything from throttle valve opening angle to intake air temperature. The large shift light just above the tach looks very much ready for the dragstrip.
An all-new aluminum frame and swingarm help negotiate all that power, and 320mm and 298mm ABS-equipped wave-type disc brakes should provide strong stops after fierce high-speed runs. At $17,990, the V-Max won’t be cheap, but with production limited to only 2,500 units for 2009 this refreshed and reinvigorated hot rod should put plenty of smiles under the helmets of a few lucky enthusiasts.
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YAMAHA (June 6, 2008)
Yamaha has released the 2009 lineup of the YZ race bikes. Here are the specs for all there new bikes.
2009 YZ450F
Key Features:
New for 2009:
Engine:
Chassis/Suspension:
Additional Features:
2009 YZ250F
Key Features:
New for 2009:
Engine:
Chassis/Suspension:
2009 YZ250
Key Features:
New for 2009:
Engine:
Chassis/Suspension:
Additional Features:
2009 YZ125
Key Features:
New for 2009:
Engine:
Chassis/Suspension:
Additional Features:
A compact, easy-to-operate chassis and full supersport styling, this model was developed to offer street performance to riders of all skill levels.
ENGINE
Highly durable 4-stroke parallel twin is tuned to deliver smooth, step-free power.
Idealised intake and exhaust ports contribute to good off-idle response and smooth power delivery.
Combustion chamber design optimises the squish area, maximising combustion efficiency and minimising emissions.
Valve timing and lift were designed for low and midrange torque.
Valves with smaller diameter heads and stems reduce reciprocating weight.
Direct valve actuation ensures high-rpm reliability.
Pistons feature reinforced heads and strengthening in the pin boss area for high durability.
Thick piston rings (longitudinally) minimise oil consumption.
The latest generation Denso radiator offers superior cooling performance while minimising space and weight.
Fins on the lower side of the crankcase also aid cooling performance.
FUEL SYSTEM
Keihin CVK30 x 2 with excellent throttle response, high combustion efficiency and minimise emissions.
Twin CVK30 carbies significantly improve driveability.
Handy choke ensures a fast warm-up so the catalyser reacts its optimum operating temperature to minimise emissions.
The air cleaner features a complex construction with reinforcing ribs that help eliminate reverberation, for reduced intake noise.
EXHAUST SYSTEM
The 2-1 exhaust system contributes to low and midrange torque and helps achieve a smooth, step-free power curve.
The upswept silencer underwent extensive testing to minimise noise and power loss.
The catalysers, is located in the collector pipe, this ensure strict emission regulations are met. Using a high performance catalysers enables power losses to be minimised. Locating the catalyser as close to the exhaust ports as possible maximises its efficiency.
TRANSMISSION
Involute splines reduce friction and backlash between gears for easier gear meshing and ensure smooth shifting under power.
Spring-type clutch damper contributes to smooth clutch feel, reducing jerkiness at low speeds and minimising shocks when rolling on and off the throttle.
CHASSIS
Sturdy frame and swingarm provide a strong, rigid base. Front and rear suspension with firm settings and 17" wheels complete a smooth, rider friendly package that offers confidence-inspiring stability at both high and low-speeds.
TUBULAR 'DIAMOND' HIGH TENSILE STEEL FRAME
The frame is constructed of thick-walled tubing for strength and rigidity.
FRONT SUSPENSION
Firm settings keep pitching motion to a minimum.
REAR SUSPENSION
Uni-Trak rear suspension with 5-way adjustable spring preload.
FRONT AND REAR DISC BRAKES
290 mm front petal disc with a twin piston caliper and a rear 220 mm petal disc with a twin piston caliper ensure excellent stopping power and feel.
ERGONOMICS
The Ninja 250R features styling that would not be out of place on our larger supersport models. The striking full-fairing bodywork has a superb fit and finish that looks as good up close as it does from a distance.
A slightly forward-slanting seat and wide, raised bars offers a natural riding position. Front cowl and windscreen offer the rider a substantial amount of wind protection.
Aggressive dual-lamp headlight design contributes to the sharp image.
Slim tail cowl and separate seats further enhance the supersport look.
An optional single seat cover can replace the pillion seat for an even more aggressive image.
DETAIL FEATURES
Attractive instrument panel features an easy-to-read large face analogue speedometer and tachometer, odometer, trip meter and warning lamps. Clear-lens turn signals contribute to the high-quality look.
The Ninja 250R features 17" wheels like our larger supersport models.
Sporty low-profile tyres contribute to easy, neutral handling at low-speeds.
SPECIFICATIONS: EX250J8F
NOTE: Specifications subject to change without notice
Engine type.................. 4 stroke, liquid cooled, parallel twin
Displacement............... 249 cm3
Bore & stroke............... 62.0 x 41.2 mm
Compression ratio ...... 11.6:1
Valve system ............... DOHC, 8 valves, 4 valves per cylinder
Maximum power ..........23.5 kW {32 PS} / 11,000 rpm
Maximum torque .........21.7 N·m / 10,000 rpm
Fuel system .................Keihin CVK30 x 2 Carburettors
Starting......................... electric
Transmission............... 6-speed
Frame type ................... steel tubular diamond
Rake / trail .................... 26° / 83 mm
Suspension, F.............. 37 mm fork
Suspension, R ............. swingarm with single gas charged shock absorber
Wheel travel, F / R ....... 120 / 130 mm
Tyre, F / R..................... 110/70 ZR-17 / 130/70 ZR-17
Brake, F ........................ 290 mm disc with dual piston caliper
Brake, R........................ 220 mm disc with dual piston caliper
L x W x H ...................... 2,080 x 710 x 1,115 mm
Wheelbase ................... 1,400 mm
Seat height................... 780 mm
Fuel capacity ............... 18.0 L
Dry weight.................... 151 kg
Colours.........................Passion Red or Ebony
Improved acceleration and drive
New 5-speed transmission
Changes to suspension and frame for lighter, quicker steering
Smoother suspension action and improved damping performance
Hard hitting power from mid-high rpm
Petal shaped brake discs
Works style Renthal handlebar
Works style skid plate
New graphics
FEATURES AND BENEFITS:
ENGINE
High performance 4-stroke engine
DOHC with 4 titanium valves produces a wide powerband with high torque and rpm.
Asymmetrical high acceleration cams improve intake efficiency.
Smooth intake ports increase efficiency at all engine speeds.
Screw type cam adjuster with pressure spring ensures accurate cam chain tension and reduced mechanical noise.
Dual weight centrifugal decompression system eases starting.
Digital Acceleration Compensating Capacitor Discharge Ignition (AC-CDI)
A separate ignition map for neutral gives quick starting and a stable idle when in neutral. A second map is selected when a gear is engaged to reduce the engine braking effect.
Smooth rev limiter performance is achieved using lost spark control.
Fuel system
40 mm Keihin FCR carburettor provides quick starting, good response and a wide powerband.
Hot start lever on the left handlebar leans off the fuel mixture making starting a hot engine quick and easy.
Exhaust system
Tapered titanium exhaust pipe is lightweight and has that ‘factory’ look about it.
CHASSIS
Frame
The lightweight aluminium perimeter frame is wider at the ankles to offer grip to the rider and narrower further up for a slim riding position.
A works-style aluminium skid plate is fitted as standard.
Inverted 48 mm front fork
A twin chamber type fork with 22 way compression and 20 way rebound damping adjustment.
The inner tubes are coated with Diamond Like Carbon (DLC) to reduce friction and increase surface hardness.
Uni-Trak® rear suspension
Uni-Trak® offers superb traction and smooth suspension action across the whole stroke in a lightweight and compact suspension package.
22 way (low-speed), 2 turns (high-speed) compression and 22 way rebound damping with spring preload adjustment to tune suspension to all conditions.
Front and rear disc brakes
Petal disc brakes reduce unsprung weight and the wave shape helps clean the brake pads for more efficient operation.
Solid petal discs are available as an option for wet races.
CHANGES FROM 2007 MODEL
During the cylinder head casting process, the cores for the intake ports were given a special coating to make the intake ports smoother. The extremely smooth surfaces that result increase intake efficiency at all rpm.
New wedge sharp crankshaft webs significantly improve the balance efficiency of the crankshaft. The Balance efficiency of the '08 KX450F is on a par with James Stewart's factory racer. The result is reduced vibration, smoother power delivery and increased performance - especially at low-rpm, where response is noticeably snappier.
New Material for the connecting rod has a harder surface for reduced friction at both the big and small end
The oil pump has revised gear ratios and larger rotors increasing oil flow approximately 10%. The oil pump cover is secured using 5 bolts (previously 4) for increased sealing.
Revised piston jet has a smaller nozzle opening. The reduced tendency of oil to gather at the nozzle opening increases piston cooling performance.
Revised ignition data further reduces the already minimal chance of kickback from the kick-start lever when kicking over the engine with insufficient force.
The transmission gets a revised shift drum and cam for a better shift feel.
Lighter rate shift change springs also enhance shift touch, contributing to smoother shifting
In order to meet stricter exhaust noise regulations, the silencer is a revised design and features a baffle pipe with a new punching pattern. The new silencer minimises power loss.
A new muffler stay bracket and stronger subframe also increases durability.
While keeping high-speed straight-line stability a priority, chassis modifications aimed to improve low-speed cornering and overall ride feel.
New engine mounts incorporating collars hold the engine from a wider position (10mm further out). The resultant slight decrease in torsional rigidity contributes to quicker turning in low-speed corners, increased rear traction and an overall lighter feel.
Revised suspension settings slightly alter the bikes front/rear balance, contributing to quicker turning. The slightly stiffer settings also improve bottoming characteristics.
The front forks have an improved machining process and new low friction coating on the inside of the outer tubes for improved action and feel.
The compression damping characteristics are revised for improved mid-stroke action and rise feeling.
The rear shock absorber tank cylinder also receives the new low friction coating to improve suspension action.
New rear brake caliper guard protects it from damage
New throttle grip provides additional stability during throttle operation.
The clutch cable boot features a larger quick adjuster, allowing racers to adjust play in the clutch cable while on the fly.
The wheel rims are coated in black alumite - just like our factory racers.
COLOUR(S)
SPECIFICATION KX450D8F
Engine type. .......................... 4-stroke, liquid cooled, single cylinder,
primary kick-start with Automatic
Compression Release (ACR)
Displacement. ....................... 449 cm3
Bore x stroke. ....................... 96.0 x 62.1 mm
Valve system. ....................... 4-valve, DOHC
Compression ratio. .............. 12.0:1
Maximum power. .................. not released
Maximum torque. ................. not released
Fuel system. ......................... Keihin FCR40 carburettor
Transmission. ....................... 5-speed
Frame type. ........................... aluminium perimeter frame
Rake / trail. ............................ 27.1º / 117 mm
Suspension, front. ................ 48 mm inverted cartridge fork
Suspension, rear. ................. Uni-Trak®
Wheel travel, front / rear. ..... 315 / 315 mm
Tyre, front / rear. ................... 90/100-21 / 120/80-19
Brake, front. .......................... 250 mm semi-floating petal disc with dual piston caliper
Brake, rear. ........................... 240 mm petal disc with single piston caliper
L x W x H. .............................. 2,185 x 820 x 1,280 mm
Wheelbase. ........................... 1,485 mm
Seat height. ........................... 965 mm
Ground clearance. ................ 345 mm
Fuel tank capacity. ............... 7.2 L
Dry weight. ............................ 99.8 kg
