KTM 500 EXC-F Six Days - 2021 Specifications and Reviews

The 2021 KTM 500 EXC-F Six Days is a high-performance enduro machine built for serious off-road riders seeking maximum capability. Its potent 510cc liquid-cooled four-stroke engine delivers strong power across varied terrain, while the Six Days heritage ensures refined handling and durability. Best suited to experienced riders tackling challenging trail riding and enduro competition.

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General information

CategoryEnduro / offroad
Year2021
ModelKTM 500 EXC-F Six Days

Engine and Transmission Specifications

Emission detailsEuro 4
Greenhouse gases84.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption3.62 litres/100 km (27.6 km/l or 64.98 mpg)
Driveline5/8 x 1/4´ chain
ClutchWet, DDS multi-disc clutch, Brembo hydraulics
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
IgnitionKeihin EMS
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection. 42 mm
Bore x Stroke95.0 x 72.0 mm (3.7 x 2.8 inches)
Engine typeSingle cylinder, four-stroke
Capacity:510.9 ccm (31.18 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear wheel travel310 mm (12.2 inches)
Rear SuspensionWP Xplor PDS shock absorber
Front wheel travel300 mm (11.8 inches)
Front SuspensionWP Xplor-USD, Ø 48 mm
Rake (fork angle)26.5°
Frame type25CrMo4 steel central-tube

Physical measures and capacities

Fuel capacity9.20 litres (2.43 US gallons)
Wheelbase1482 mm (58.3 inches)
Ground clearance355 mm (14.0 inches)
Seat height960 mm (37.8 inches) If adjustable, lowest setting.
Dry weight106.0 kg (233.7 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
ElectricalLithium-ion battery
StarterElectric
Color optionsWhite/green/orange/black

Performance Profile & Rider Fit

Best For

Track20%
City25%
Cornering70%
Daily Riding20%
Touring25%
Passenger5%

Rider Profile

Best ForThis is a serious competition-bred enduro machine best suited to experienced or advanced off-road riders, not beginners.
PurposeBuilt for hard enduro, cross-country racing, and technical trail riding where a light, powerful 500cc four-stroke thrives.
Rider FitIts tall seat height, minimal weight, and firm long-travel suspension demand good rider fitness, strength, and off-road technique.
CharacterA raw, race-focused thumper that rewards aggressive input with explosive torque, razor-sharp agility, and total commitment to dirt riding.
Not Ideal ForNot a good fit for commuters, passengers, long highway tours, or riders wanting plush comfort and low-effort ergonomics.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 KTM 500 EXC-F Six Days Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 960mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 KTM 500 EXC-F Six Days, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 KTM 500 EXC-F Six Days motorcycle is a high-performance off-road machine designed to conquer any terrain. With its powerful 510cc engine, lightweight chassis, and advanced suspension system, this bike delivers impressive agility and control in the toughest conditions. Its Six Days special edition features exclusive graphics and components, making it stand out from the standard model and adding to its overall appeal to riders looking for a unique and capable off-road motorcycle. In addition to its powerful performance, the 2021 KTM 500 EXC-F Six Days boasts advanced technology and engineering, including a state-of-the-art fuel injection system, electric starter, and cutting-edge electronics for enhanced handling and reliability. With its durable construction and quality components, this bike is built to handle the most challenging off-road adventures. Overall, the 2021 KTM 500 EXC-F Six Days is a top choice for riders seeking a high-performance, reliable, and visually appealing off-road motorcycle.
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