450 SX-F 2009 | 450 SX-F 2009 |
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450 SX-F 2009
Not a bike but a racing machine which is the main contender on all tracks. As well as the revolutionary engine, this bike also has an extremely light chassis and trend-setting running gear. For 2009, the 450 SX-F (like the 250 SX-F) has been trimmed at the factory specifically for MX1 series wins: with huge numbers of great PowerParts!
Special equipment for 250 SX-F and 450 SX-F
CHASSIS FRAME Sturdy, oversized, oval lateral tubes make the chromemoly frame one of the most stable and lightweight designs on the market. tough lateral plastic frame guards (in the acesories kit with all SX) now efficiently protect the high-quality powder coating. FORKS The fully adjustable 48 mm upside-down forks with „closed cartridge" technology and new star -shaped adjusting knobs at the top, now have a new hydrostop and a completely new seting. That gives even better damping and more sensitive responsiveness. The elegant CNC-milled triple clamps with adjustable offset permit optimum adaptation to riding style and track. SWINGARM The superlight cast swingarm was adapted to the bending loads occurring during riding using the latest simulation software. That ensures optimum flexibility, enormous traction and maximum comfort. SHOCK ABSORBER An optimised seting of the fully adjustable PDS shock absorber from WP offers more progression and even more reserves under extreme loads. COOLING The integrated cooling system leads from the cylinder head through the frame triangle and via a T-piece straight to the coolers. WHEELS The latest generation of Excel wheel rims has been furt her weight-reduced and is already first choice when it comes to wheels. CNC-machined hubs with extra-light, self-cleaning, wave shaped brake discs guarantee minimum unsprung masses. BRAKES A new floatin g front two-piston brake caliper with new brake master cylinder (reduced piston diameter) improves the application of the front brake and reduces the required hand force. At the rear, a single-piston brake calliper grips the ultra-light, waveshaped brake disc. HANDLEBAR The high-quality Renthal handlebar of tapered aluminium with an ergonomically optimised shape can be adjusted to four positions to exactly suit the rider. SEAT The seat of the new SX series now has an optimised foam core for improved comfort and even longer service life. In addition, the weight has been reduced by 150 grams. CHAIN Regina is the Latin word for „queen" and has been a trademark of quality for many years. The latest SX models have an even stronger chain to better cope with the high performance of the KTM engines. AIR BOX The airbox with ample volume provides plenty of power and on the 450 SX-F even has room for the battery. Filter changing without tools as always. The outer contour ensures optimum knee contact. PLASTICS All plastics have been designed for optimum ergonomics and maximum freedom of movement. Front fender, starting number plate and chainguard are manufactured in two-component technology. Two different plastic hardnesses in one part ensure particularly high rigidity exactly where it is needed. TANK The tank layout ensures optimum ergonomics and the best knee contact with the bike. The ducts under the spoilers form part of the KTM Airflow system with which fresh air is guided to the airbox via openings in the spoilers.The fuel tank cap with bayonet fitting has an additional twist lock, to prevent unintentional opening, that can be easily unlocked by pressing the orange inner segment. SPOILERS/GRAPHICS The new spoilers reduce the width at the front end by more than 10 mm to enhance ergonomics. Manufactured with the latest IN-MOULD technology, a plastic layer over the stickers protects the new col graphics and thus makes them far more durable. The openings at the front of the spoilers serve as air outlets for the coolers and fresh air is drawn into the airbox through the openings at the rear. In addition, all SX bikes will be equipped with additional starting number plates from 2009. ENGINE CARBURETTOR All SX four-stroke models breathe via Keihin FCR MX carburettors that, with their accelerator pump and throttle position sensor, ensure spontaneous acceleration and optimum performance. An optimised cold start seting now improves starting, particularly at low temperatures. STARTER Why use a kick-starter, when the bike can also be reliably started with the push of a button? A huge advantage when things get tough during the race. The small electric starter motor is located in the free pace behind the cylinder, and the battery takes up practically no space in the airbox. CYLINDER HEAD Two new camshafts with optimised valve timing and new, light valve springs ensure more power from low revs right up to the cut-off point. The four ultralight titanium valves are actuated by the camshafts via DLC (Diamond Like Carbon) coated finger followers. EXHAUST The new titanium exhaust header pipe of the 450 SX-F is not only super-light, its also reduces the exhaust noise to the limit prescribed for racing sport thanks to the new KTM HPRS (Header Pipe Resonator System) in combination with the high-quality aluminium silencer. ENGINE COVERS New engine covers with new logo and optimized coating not only look cool, they also offer improved protection against rough offroad boots.
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