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ID # 15549257

2021 KTM 450 SX-F Factory Edition

  • 2021 KTM 450 SX F Factory Edition
  • 2021 KTM 450 SX F Factory Edition
  • 2021 KTM 450 SX F Factory Edition
  • 2021 KTM 450 SX F Factory Edition
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Overview

 

The KTM 450 SX-F FACTORY EDITION is a championship winning machine. With its development based on feedback coming directly from elite Motocross and Supercross racers, it's the force behind the success of Red Bull KTM Factory Racing riders around the globe. A formula for victory, the 2021 KTM 450 SX-F FACTORY EDITION comes with a list of updates including KTM's proprietary Connectivity Unit as standard, which allows every rider to explore the potential of the innovative myKTM app straight out of the showroom.
MODEL HIGHLIGHTS
 
  • Red Bull graphic kit
  • Akrapovič Slip-On silencer
  • Connectivity Unit fitted as standard
  • Ability to connect to the innovative myKTM app
  • Factory triple clamps anodized in orange
  • KTM Factory wheels
  • Factory holeshot device in the fork guards
  • Orange frame
  • Composite skid plate
  • Factory seat with Selle Dalla Valle logo
  • Semi-floating front disc
  • Front brake disc guard
  • Orange rear sprocket
  • Hinson clutch cover

 

Specifications
Model
450 SX-F Factory Edition
Category Name
Motorcycles
Year
2021
Sale Type
New
Manufacturer
KTM
Bore
95 mm
Clutch
Wet, DDS multi-disc clutch, Brembo hydraulics
Stroke
63.4 mm
Starter
Electric starter
Front Brake
Disc brake
Transmission
5-speed
Weight (without Fuel)
100.5 kg
Tank Capacity (approx.)
7 l
Rear Brake Disc Diameter
220 mm
Front Brake Disc Diameter
260 mm
chassis
PHO BIKE DET 450sxf Factory 21 Frame %23SALL %23AEPI %23V1 Frame
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.
PHO BIKE DET 450sxf Factory 21 Swingarm %23SALL %23AEPI %23V1 Swingarm
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.
PHO BIKE DET 450sxf Factory 21 Wheel %23SALL %23AEPI %23V1 Wheels
The KTM 450 SX-F FACTORY EDITION is fitted with high-end Factory wheels. They feature black D.I.D DirtStar rims and fully CNC-machined orange anodized hubs. Together with black spokes and orange anodized aluminum nipples, they guarantee minimal weight at maximum stability so that the rider will feel an increase in handling. Dunlop GEOMAX MX-33 tires put the power to the ground using the proven block-within-a-block design.
PHO BIKE DET 450sxf Factory 21 Fork %23SALL %23AEPI %23V1 Front suspension
The WP XACT 48 with innovative AER technology 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. Featuring a proven setting, the fork is also fitted with a mechanical holeshot device on its right leg. This ensures the proper weight distribution and ride height for getting to the first turn ahead of the competition.
PHO BIKE DET SX F MY20RearSuspension %23SALL %23AEPI %23V1 Rear suspension
The WP shock absorber has been developed with the entire frame and swingarm architecture in mind, including the linkage system and the WP XACT 48 front forks. It features machined and anodized components and is a valuable, high-end product compared to rough cast reservoirs.
PHO BIKE DET 450sxf Factory 21 Tripleclamp %23SALL %23AEPI %23V1 Triple clamp
The CNC-machined Factory triple clamps match the stiffness of the frame perfectly while offering adjustable offset of 20 mm or 22 mm. In addition, its sophisticated fork clamping reduces internal friction for better sliding behavior of the inner fork legs. A rubber damping system reduces vibrations and increases rider comfort.
PHO BIKE DET 450sxf Factory 21 Brakes %23SALL %23AEPI %23V1 Brakes
A 260 mm 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 KTM 450 SX-F FACTORY EDITON.
PHO BIKE DET 450sxf Factory 21 Fueltank %23SALL %23AEPI %23V1 Fuel tank
A lightweight polyethylene tank with a capacity of 1.85 gallons. The fuel tank cap has an inside thread, which makes for quick, easy and reliable closure.
PHO BIKE DET 450sxf Factory 21 Airbox %23SALL %23AEPI %23V1 Airbox
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 helps to hold the system securely in place. This design is so simple, you can pop a fresh one in without tools, in seconds.

 

engine and exhaust
2021 KTM 450 SX F Factory Edition Engine
The 450 cc engine is the ultimate powerhouse when it comes to KTM's competitive motocross range. Its compact, lightweight design features a single overhead camshaft cylinder head, fueled by a highly advanced electronic injection system. This enables the impressive power to be distributed extremely efficiently throughout the rev range. Even with its super-beneficial electric starter, this model is still the lightest 450 cc engine on the MX market.
PHO BIKE DET 450sxf2019 Cylinderhead %23SALL %23AEPI %23V1 Cylinder head
The KTM 450 SX-F FACTORY EDITION is fitted with a lightweight, compact SOHC (single overhead camshaft) cylinder head. The design focusses on mass centralization, contributing to overall handling excellence. The overhead camshaft has a friction-optimized surface and valve timing that delivers impressive responsiveness. The four ultra-lightweight titanium valves (intake 40 mm, exhaust 33 mm) are activated via extremely rigid rocker arms. The rockers on intake side are DLC coated, allowing for impressive engine speeds up to 11,500 rpm. The innovative head configuration guarantees the most efficient delivery of the unrivalled power, keeping a strong edge over the competition.
PHO BIKE DET 450sxf2019 Crankshaft %23SALL %23AEPI %23V1 Crankshaft
The crankshaft on the KTM 450 SX-F FACTORY EDITION is located in an ideal position close to the center of gravity, contributing to better mass centralization. It utilizes a short connecting rod, which allows for a compact motor design and a snappier power delivery. The whole unit is extremely well-balanced, with the perfect amount of inertia for optimal traction and ride-ability. A plain big end bearing with two force-fitted bearing shells, runs directly on the crank pin, with the necessary oil feed for this bearing supplied by the engine's pressure lubrication. This design also enhances durability, allowing for long crankshaft service intervals - resulting in less effort and cost and more time spent on two wheels.
PHO BIKE DET 450sxf2019 Enginecase %23SALL %23AEPI %23V1 Crankcases and engine covers
The compact engine cases are manufactured using a high pressure die-cast production process that helps with weight reduction, while retaining strength and durability. The design allows for optimal shaft arrangements close to the center of gravity, resulting in better mass centralization and easier ride-ability. The engine covers feature a smart surface structure that reduces wear caused by the rider's boots, keeping them looking as fresh as the day you bought it.
PHO BIKE DET 450sxf2019 Transmission %23SALL %23AEPI %23V1 Transmission
The transmission on the KTM 450 SX-F FACTORY EDITION is focused on lightweight performance without compromise to durability. The gear ratios have been perfectly matched to the power delivery of the large displacement engine. The engine is fitted with a gear sensor, which provides the option of different engine characteristics for each gear depending on engine load. An advanced "no-dirt" gear lever design prevents dirt from building up and together with the reliable gearbox, guarantees that the next gear is always an easy click away.
PHO BIKE DET 350 Sx F 2018 1020x596 Throttle Body %23SALL %23AEPI %23V1 Engine management system
The state-of-the-art KEIHIN Engine Management System, with electronic fuel injection, features a 44 mm throttle body. The injector position guarantees optimal atomization of the fuel and air on the way to the combustion chamber, resulting in instant response and maximum performance when opening the throttle. There are also separate systems for cold starting and idle adjustment. The ECU features maps which have been developed to precisely match the exhaust and cylinder head, with options for regulating traction and launch control. It also provides different maps for each gear, according to the information received from the gear sensor, ensuring maximum power as you shift through the gears.
PHO BIKE DET 450sxf Factory 21 Piston %23SALL %23AEPI %23V1 Cylinder and piston
Inside the short 95mm bore cylinder thumps a special 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 really shine. Thanks to the low oscillating masses, the engine is as snappy as it is strong.
PHO BIKE DET 450 Sxf 2018 Balancershaft %23SALL %23AEPI %23V1 Balancer shaft
The multifunctional side mounted counter balance shaft masterfully balances all the oscillating forces, while also driving the water pump. It effectively keeps engine vibrations to a minimum, resulting in the smoothest ride, even at the highest engine speeds.
The KTM 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.
PHO BIKE DET 450sxf Factory 21 Clutch %23SALL %23AEPI %23V1 Clutch
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 KTM 450 SX-F FACTORY EDITION.
PHO BIKE DET 450 Sxf 2018 Estarter %23SALL %23AEPI %23V1 E-Starter
The standard electric starter on the KTM 450 SX-F FACTORY EDITION uses a proven starter drive and a strong starter motor made by Mitsuba. As demonstrated time and time again, it provides quick and reliable starting, saving you precious time and energy when you need it most.
PHO BIKE DET 450 SXF FACTORY EDITION MY20 Handlbar MapSwitch %23SALL %23AEPI %23V1 Handlebar map select switch
Within easy reach of the left grip on all four-stroke models, the multifunctional handlebar map switch features innovative control functions: traction control, launch control and alternative power curves (standard, advanced). The traction control is a unique feature that guarantees more efficient traction and better control when accelerating the bike, especially in challenging track conditions. It can be activated on the handlebar map switch while riding. With a simple push of the two buttons at idle speed, the rider can also activate launch control, ensuring the most effective launch out of the gate. The map switch also gives the rider the chance to select an alternative power map besides the standard configuration, providing performance options during the race. The KTM 450 SX-F FACTORY EDITION features the Connectivity Unit as standard, enabling wireless connectivity with the innovative myKTM app right out of the crate.
PHO BIKE DET 450sxf Factory 21 Cooling %23SALL %23AEPI %23V1 Cooling
Maintaining the optimal engine temperature is crucial to ensuring consistent horsepower throughout the ride. The KTM 450 SX-F FACTORY EDITION features radiators which are positioned for a lower the center of gravity. Their design matches the shrouds perfectly and offers a great slim feel to the ergonomics. By using CFD technology (Computational Fluid Dynamics) together with a clever coolant circuit routing, the innovative system ensures the optimum engine temperature for the highest performance, no matter what the conditions. The radiators also feature special protectors that don't only serve as protection from flying rocks and debris but also as a brace that disperses energy around the radiators in the event of an impact.
PHO BIKE DET 450sxf Factory 21 Exhaust %23SALL %23AEPI %23V1 Exhaust
The header pipe features a flow-designed resonance chamber that is seamlessly integrated into the system for low noise and optimal power delivery. The lightweight slip-on Akrapovič muffler delivers excellent performance , while ensuring noise levels comply with competition requirements.
 

 

software and electronics
PHO BIKE DET 450 SXF FACTORY EDITION MY20 Battery %23SALL %23AEPI %23V1 Battery & wiring harness
A strong lithium ion 2.0 Ah battery breathes life into the engine, while adding very little to overall vehicle weight. The lightweight battery and wiring harness are centralized in a compartment above the air filter box, allowing removal of the subframe without moving the electronics.