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2021 KTM 500 EXC-F

2021 KTM 500 EXC-F

Stand back or hold on tight, this is the most powerful dual-sport on the market. The new generation KTM 500 EXC-F packs a thrilling 4-stroke punch while still delievring outstanding rideability. Thanks to a completely reworked chassis and its even more compact high-tech engine, this large-displacement power machine is surprisingly light with excellent agility. As a result, this awesome 510 cc SOHC single cylinder bombshell has an incredible power-to-weight ratio and provides nothing less than the most dynamic dual-sport experience available.

Engine

Combining compact dimension with an immense power output, the KTM 500 EXC-F’s fuel-injected SOHC engine is the most powerful and refined 500 cc on the market. Its class-leading power delivery is available throughout the entire rev range and with its low weight of only 64.4 lbs, this engine is the most compact, lightest and most competitive powerplant out there.

  • The KTM 500 EXC-F engine is fitted with a compact SOHC cylinder head for optimal mass centralization while contributing to even better handling. The head configuration promises efficient power delivery and unrivalled performance as the gas flow through the ports is controlled by a single overhead camshaft. It features a durable axial fixation of the de-compressor shaft and an efficient, integrated engine breather system.
  • The KTM 500 EXC-F’s crankshaft is located in an ideal position close to the center of gravity, contributing to easier handling. It utilizes a short connecting rod, which makes for an overall compact and lightweight engine with a snappy power delivery. A plain big (bottom) end bearing with two force-fitted bearing shells runs directly on the crank pin. The engine’s pressurized lubrication system provides the necessary oil feed for this bearing.
  • The KTM 500 EXC-F features a robust 6-speed transmission made by PANKL Racing Systems. The gears are made of a strong, forged raw material, ensuring the highest durability and reliability level. There was no need to change the gear ratios that are perfectly matched to the power characteristics of the engine. All four-stroke engines are fitted with a gear sensor, giving the option of different engine characteristics for each gear.

Chassis

All EXC models feature high-tech, lightweight chromoly steel frames. This includes hydro-formed elements produced by state-of-the-art robot welding. With its race-proven geometries and optimal stiffness, the frame provides great feedback for the rider, playful handling and remarkable stability. The laterally attached engine head stays (the connection between cylinder, head and frame) are made of aluminum, reducing vibration and further contributing to precise cornering. The bikes also feature lateral frame guards with a structured surface, improving grip, while also serving as a heat protector against the muffler on the right side. The subframe is made of extra-light and stable aluminum profiles, weighing less than 900 gr, providing great rear fender stability.

  • The KTM 500 EXC-F’s one-piece aluminum swingarm is manufactured using a gravity die-cast production process, offering exceptional strength at the lowest possible weight. The single-component casting process offers low weight, perfect flex behavior and also allows for a large number of geometry solutions.
  • All EXC models are fitted with the latest 48 mm diameter WP XPLOR upside-down forks, featuring a split fork design developed by WP and KTM. While each side is fitted with springs, they have separate damping functions. Compression damping is on the left and the rebound on the right. Both can easily be adjusted via the dials on top of both fork tubes with 30 clicks each. Although already distinguished for outstanding response and damping characteristics, the fork features a calibrated mid-valve piston for consistent damping.
  • KTM uses lightweight, CNC-machined hubs and high-end GIANT rims on all EXC models, guaranteeing maximum stability and minimum weight. The aluminum spoke nipples feature an innovative design, which conveniently reduces the frequency with which the spokes need to be tightened.

Ergonomics & Comfort

All KTM EXC models are equipped with the same high-strength aluminum tapered NEKEN handlebar. The handlebar allows for four different positions. The handlebars come standard with an ODI vulcanized grip on the right side and a comfortable ODI lock-on grip, which does not require any wire or glue, on the left.

  • Sophisticated “No-Dirt” footpegs prevent clogging up the pegs, even when digging in deep ruts. The pegs on the Enduro models are 6 mm higher than the ones used on SX models, which benefits ground clearance. But you can swap them at will.

Bodywork & Graphics

Durable in-mold graphics convey the READY TO RACE character of the KTM EXC-F model line.

Software & Electronics

All engines are fitted with the proven electric starter, which is a major benefit for any offroad activity. It is powered by a super lightweight 2 Ah lithium-ion starter battery, which provides safe, reliable starting. The wiring harness has most of the electrical components carefully positioned into a common area below the seat, making them easily accessible and reliable.

Technical Details

  • Transmission 6-speed
  • STARTER Electric starter
  • STROKE 72 mm
  • BORE 95 mm
  • CLUTCH Wet, DDS multi-disc clutch, Brembo hydraulics
  • DISPLACEMENT 510.9 cmÂł
  • EMS Keihin EMS
  • DESIGN 1-cylinder, 4-stroke engine
  • FRONT BRAKE DISC DIAMETER 260 mm
  • REAR BRAKE DISC DIAMETER 220 mm
  • FRONT BRAKE Disc brake
  • REAR BRAKE Disc brake
  • CHAIN X-Ring 5/8 x 1/4″
  • FRAME DESIGN 25CrMo4 steel central-tube frame
  • FRONT SUSPENSION WP XPLOR-USD, Ø 48 mm
  • REAR SUSPENSION WP Xplor PDS shock absorber
  • STEERING HEAD ANGLE 63.5 °