KTM AND DUCATI

  

With the ultra-powerful 250 cc DOHC power unit, this lively four-stroke forges ahead into areas where some two-strokes surrender. Integral engine protector, the orange anodized triple clamps and cool race graphics put the 250 SX-F in a class of its own!

Special equipment for 250 SX-F and 450 SX-F

» Aluminium skid plate
» Hand protectors
» Handlebar protector
» Orange triple clamps
» SXS seat
» Special race graphics

CHASSISFRAME
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.

ENGINEVALVE TRAIN
New camshafts with optimised timing ensure better responsiveness and even more power from low revs.

VALVES
In combination with the weight-optimised finger folowers, ultra-light titanium valves with new springs and optimised valve guides mean minimum oscillating masses, maximum valve lift top durability and performance.

GEAR BOX
A strengthened shifting gear for 3rd/4th gear and the optimised idler gear for 3rd gear guarantee increased durability of the gearbox.

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.

SPECIFICATIONS

Engine »
Engine	single cylinder, 4-stroke
Displacement	248.6 cc
Bore and Stroke	76 x 54.8 mm
Compression Ratio	12.8:1
Valve Gear	4 V / DOHC with finger followers
Engine Lubrication	pressure lubrication
Filter System	-
Starter	kick-starter
Decompression	automatic
Ignition	Kokusan
Battery	-
Carburetor	Keihin MX FCR 39
Fuel	premium unleaded
Transmission	6 gears
Clutch	wet multi-disc clutch, operated hydraulically
Primary Drive	22:68
Final Drive	13:48
Chassis »
Chassis	central double cradle type 25 CrMo4
Frame	central double cradle type 25 crMo4
Sub-Frame	Aluminium
Handlebar	Renthal aluminium, tapered
Front Suspension	WP-USD 48mm
Rear Suspension	WP PDS shock absorber
Front/Rear Suspension Travel	300/335 mm
Front Brake	disc brake 260mm
Rear Brake	disc brake 220mm
Front Rim	1.60 x 21" Excel
Rear Rim	2.15 x 19" Excel
Front/Rear Tyre	80/100-21" ; 100/90-19"
Steering Headangle	63.5
Wheel Caster	-
Wheelbase	1475-10 mm
Exhaust System	Stainless steel header and aluminium silencer
Stand	-
Seat Height	985 mm
Ground Clearance	380 mm
Fuel Capacity	approx. 8 L
Weight	approx. 98 kg (no fuel)