450 SX-F FACTORY EDITION
A FORMULA FOR SUCCESS
At 15mm lower than the previous generation, the cylinder head puts the camshaft closer to the center of gravity of the bike. Newly designed rocker arms featuring increased stiffness and reduced inertia on the intake and exhaust valve side actuate lightweight titanium valves. A low-friction cam chain completes the highly efficient and compact valve train.
The crankshaft utilizes a short connecting rod, which makes for an overall compact and lightweight engine with a snappy power delivery. The conrod features a plain big-end bearing with two force-fitted bearing shells runs directly on the crank pin while a new bushing in the small eye reduces friction. The necessary oil feed for this bearing is ensured by the engine's pressurized lubrication. This design is a decisive benefit in terms of the crankshaft service interval, which can be lengthened due to the plain bearing.
CRANKCASES AND ENGINE COVERS
The design of the die-cast engine cases allows for minimal weight and a very centralized shaft configuration. This makes the engine short and compact, while contributing to an efficient centralization of masses. The engine covers also feature a solid surface structure, which reduces the wear caused by the rider's boots.
The KTM 450 SX-F FACTORY EDITION uses a lightweight 5-speed transmission with gear ratios that are perfectly matched to the power delivery of its large displacement engine. The gearbox of the 450 SX-F FACTORY EDITION is produced by Pankl and features high-strength material and a special heat treatment. An advanced 'No Dirt' gear shift lever design prevents mud and sand from blocking the joint of the lever and guarantees trouble-free shifting. The engine is fitted with a gear position sensor, giving the option of different engine characteristics for each gear.
ENGINE MANAGEMENT SYSTEM
The state-of-the-art Keihin Engine Management System with electronic fuel injection features a 44mm throttle body. Thanks to its unique injector position, the engine's response is instantaneous. And to make life even easier, separate systems for cold starts and idle adjustment await you. The lightweight ECU features a unique traction and launch control system for lightning-quick response when the gate drops and maximum grip thanks to different maps that sync with to the gear you're in. It's also possible to unleash an even more powerful mapping via the handlebar map switch.
CYLINDER AND PISTON
Inside the short cylinder, with a bore of 95mm, thumps a new forged box in box piston with a hard anodized compression ring groove and an optimized profile. Its crown geometry is adapted perfectly to the high-compression combustion chamber, where its rigid structure and low weight shine. Thanks to the low oscillating masses, the engine is as snappy as it is strong.
The side-mounted counter balancer does double duty also driving the water pump. Thanks to its perfect balance and low oscillating masses, engine vibration is kept to a minimum.
The 450 SX-F FACTORY EDITION features a DDS (Dampened Diaphragm Steel) Clutch that is actuated hydraulically by a Brembo master and slave cylinder. The single diaphragm steel pressure plate offers better feel and function than a traditional multiple coil spring set-up. The damping system provides better traction and reliability while the CNC-machined basket allows for thin steel liners for a compact design. A special replica Hinson billet clutch cover is fitted to the FACTORY EDITION.
Like all KTM 4-stroke motorcycles, the 450 SX-F FACTORY EDITION is started at the push of a button - a priceless advantage when you're on the clock.
HANDLEBAR MAP SELECT SWITCH
All 4-stroke models are equipped with a sophisticated multi-functional handlebar map select switch, which does three things: activation of the traction control, activation of the launch control, selection of two power curves. The traction control guarantees more efficient traction when the track conditions are less than perfect. With this map select switch the rider can also activate the launch control, which provides more efficient starts out of the gate so you can go for the holeshot. How? It simply reduces the maximum engine speed for the very first moments of the start, in order to give you better control. In addition, the map select switch gives the rider the chance to select an alternative, more powerful map beside the standard configuration.
KTM's proven cooling system routes the coolant from the cylinder head through the frame triangle, directly to aluminum radiators. Thanks to flow optimized internal circulation and CFD-calculated ventilation, the system is superbly efficient. In addition, well thought-out radiator guards integrated in the front part of the shrouds provide protection in a crash.
The header pipe features a flow-designed resonance chamber that is seamlessly integrated into the system for low noise and optimal power delivery. The new slip-on AKRAPOVIČ muffler delivers excellent performance due to its low weight and noise levels that comply with competition requirements.
The frame on the KTM 450 SX-F FACTORY EDITION is made of professionally crafted hydroformed Chromium Molybdenum steel tubes which are robot welded for the highest levels of consistent quality and strength. The frame stiffness is designed for optimal handling, comfort and high-speed stability. The orange powder coated frame is fitted with color matching frame protectors and a carbon fiber reinforced skid plate.
The cast aluminum design offers low weight and a perfect flex behavior. The single-component casting process eliminates any inconsistencies and inherent weak points created by welding.
The 450 SX-F FACTORY EDITION is fitted with newly developed high-end FACTORY WHEELS. They feature black D.I.D DirtStar rims and newly developed fully CNC-machined orange anodized hubs. Together with black spokes and orange anodized aluminum nipples, they guarantee minimal weight at maximal stability so that the rider will feel an increase in handling. Dunlop GEOMEX MX3S tires put the power to the ground using the proven block-within-a-block design.
The WP AER 48 is a split function fork featuring a capsulated air spring and pressurized oil chamber for consistent and progressive damping while offering supreme adjustability. Air spring adjustment is simple with the factory supplied WP digital air pump. The 450 SX-F FACTORY EDITION is also fitted with a mechanical holeshot device on the right fork for the proper weight distribution and ride height for getting to the first turn ahead of the competition.
The WP shock absorber has been developed with the entire frame and swingarm architecture in mind, including the linkage system and the WP AER 48 front forks. It features machined and black anodized components and is a valuable, high-end product compared to roughcast reservoirs. The WP DCC shock has been updated with a new setting to provide optimized damping characteristics.
Newly developed CNC-machined FACTORY triple clamps fit perfectly to the stiffness of the frame. In addition, a sophisticated fork clamping reduces the internal friction for better sliding behavior of the inner fork legs. A rubber damping system reduces vibrations and increases rider comfort.
A 260mm floating front brake rotor is matched to a Brembo master cylinder and caliper for class-leading stopping power and feel. A front brake protector is fitted as standard equipment on the 450 SX-F FACTORY EDITON.
A lightweight polyethylene tank with a capacity of 1.85 gallons. The fuel tank cap has an inside thread, which makes for easy and reliable closure
The airbox design offers maximum protection of the air filter while ensuring maximum airflow. The large twin-air filter is mounted in a stiff cage, which at the same time holds the system in place. This design is so simple, you could still pop a fresh one in with a face full of mud. Without tools. In seconds
BATTERY & WIRING HARNESS
A strong lithium ion 2.0 Ah battery breathes life into the engine and contributes to low vehicle weight. The lightweight battery and wiring harness are centralized in a compartment above the air filter box, allowing the mechanic to remove the subframe without moving the electronics.
1-cylinder, 4-stroke engine
Wet, DDS multi-disc clutch, Brembo hydraulics
25CrMo4 steel central-tube frame
WP-USD, AER 48, Ø 48 mm
WP shock absorber with linkage
Suspension travel (front)
Suspension travel (rear)
Front brake disc diameter
Rear brake disc diameter
5/8 x 1/4"
Steering head angle
Tank capacity (approx.)
Weight READY TO RACE (without fuel)