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2021 KTM 250SX-F for sale 201173265
2021 KTM 250SX-F
$9,299
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2021 KTM 250SX-F

Off-Road / Dirt Bike Motorcycle for sale by MotoMember in Purcellville, Virginia 20132

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Motorcycle Overview

The KTM 250 SX-F was primed for global domination and is set to continue its dominance for 2021. Not only is it the lightest bike in its class, but it also offers an unrivalled, confidence-inspiring power delivery, making it a great choice for both amateur and professional riders. Laying the power down effectively is the secret to fast lap times and this capable package has all the right credentials to get the most important job done - getting to the chequered flag first.

Engine & Exhaust
Engine: Renowned as the strongest engine in 250 competition, the 2020 version maintains its dominance. Its compact structure contributes to excellent mass centralization, which supports the easy rideability of the bike. The 2020 model features a new, stronger oil pump intermediate gear that, along with several other small, but important refinements, contributes to improved reliability. The low weight of only 57.1 lbs, in combination with the compact engine layout and unrivalled power, once again makes the KTM 250 SX-F a real force to be reckoned with, yet still easy to ride for both amateur and professional riders.
Cylinder Head: An integral part of the class-leading power delivery is the cutting-edge DOHC (double overhead camshaft) cylinder head. It features two overhead camshafts which activate the titanium valves (intake 32.5 mm, exhaust 26.5 mm) via the super-light, DLC coated finger followers. The camshafts have a friction-optimized super-fine surface and a timing that delivers incredibly refined power.
Crankshaft: The KTM 250 SX-F has a rigid crankshaft and a connecting rod that features a plain big end bearing with two force-fitted bearing shells running directly on the crank pin. This design was essential for the extremely high engine speeds and unrivalled maximum power of the 250 cc 4-stroke engine. The design also enhances the engines durability, allowing long crankshaft service intervals, which is a huge benefit in terms of time, effort and cost.
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 ideal mass centralization and easier rideability. The engine covers feature a smart surface structure that reduces wear caused by the riders boots, keeping them looking as fresh as the day you bought it.
Transmission: The KTM 250 SX-F is fitted with a robust 5-speed transmission. The gear ratios were carried over from its predecessor and are perfectly suited for the MX track. Another highlight of the transmission is the no-dirt gear shifter. Similar to the footpeg design, it prevents the build-up of dirt and ensures the next gear is always available, no matter what the conditions.
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.
Cylinder And Piston: The 78 mm bore cylinder houses a lightweight, forged, bridged, box-type piston, made to the highest standards by CP. It has an extremely rigid structure and features a unique crown shape to suit the high-compression combustion chamber. The compression ratio is at 14:4:1 and thanks to the combination of low oscillating masses, the engine displays extremely lively characteristics.

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Vehicle Specifications

  • VIN
    N/A
  • Motorcycle ID
    201173265
  • Stock Number
    N/A
  • Category
    Motorcycle
  • Subcategory
    Off-Road / Dirt Bike
  • Subsubcategory
    Competition
  • New/Used
    New
  • Mileage
    N/A
  • Engine
    1-cylinder, 4-stroke
  • Transmission
    5-speed

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