Enduro Bikes
2021KTM 500 EXC-F Six Days
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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.
- Capacity
- 510.9 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 106.0 kg
- Seat height
- 960 mm
- Power
- 52.0 HP (38.2 kW)
What’s new for the 2021 KTM 500 EXC-F Six Days
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Fuel capacity | 9.00 litres (2.38 US gallons) | 9.20 litres (2.43 US gallons) |
| Front suspension | — | WP Xplor-USD, Ø 48 mm |
| Front brakes | Single disc. Brake calipers on floating bearings | Single disc |
| Rear brakes | Single disc. Brake calipers on floating bearings | Single disc |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for hard enduro, cross-country racing, and technical trail riding where a light, powerful 500cc four-stroke thrives.
- Built for
- A raw, race-focused thumper that rewards aggressive input with explosive torque, razor-sharp agility, and total commitment to dirt riding.
- Not ideal for
- Not a good fit for commuters, passengers, long highway tours, or riders wanting plush comfort and low-effort ergonomics.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 510.9 ccm
- Power
- 52.0 HP (38.2 kW)
- CO2 Emissions
- 103 CO2 g/km
- EPA Certificate No.
- MKTXC.511SLE-002
- EPA Est. Fuel Consumption
- 4.40 L/100km (53.5 US mpg)
- EPA CO Emissions
- 7.5 CO g/km
- Engine type
- Single, four-stroke
- Fuel consumption
- 3.60 litres/100 km (27.8 km/l)
- Power/weight ratio
- 0.4906 HP/kg (dry)
- Bore x stroke
- 95.0 x 72.0 mm
- Compression
- 12.8:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Keihin EMS
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Pressure circulation lubrication with two rotary pumps
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, DDS multi-disc clutch, Brembo hydraulics
Dimensions & weight
- Wheelbase
- 1482 mm
- Seat height
- 960 mm
- Dry weight
- 106.0 kg
- Fuel capacity
- 9.20 litres
- Ground clearance
- 355 mm
Chassis & suspension
- Frame
- 25CrMo4 steel central-tube
- Front suspension
- WP Xplor-USD, Ø 48 mm
- Rear suspension
- WP Xplor PDS shock absorber
- Front wheel travel
- 300 mm
- Rear wheel travel
- 310 mm
- Rake (fork angle)
- 26.5°
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 1.6-21
- Rear tyre
- 2.15-19
Other
- Color options
- White/green/orange/black
- Fuel Tank Material
- Plastic
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2018 | 2020 | 2021 | 2023 | 2024 |
|---|---|---|---|---|---|
| Capacity | 510 cc | 511 cc | 511 cc | 511 cc | 511 cc |
| Dry weight | 107 kg | 106 kg | 106 kg | 106 kg | 108 kg |
| Seat height | 960 mm | 960 mm | 960 mm | 960 mm | 963 mm |
| Fuel capacity | 8.5 L | 9 L | 9.2 L | 9.2 L | 8.5 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the KTM 500 EXC-F Six Days?
The 2021 KTM 500 EXC-F Six Days has a Capacity of 510.9 ccm (31.18 cubic inches).
What engine power does the KTM 500 EXC-F Six Days have?
The 2021 KTM 500 EXC-F Six Days has a Power of 52.0 HP (38.2 kW).
How many gears does the KTM 500 EXC-F Six Days have?
The 2021 KTM 500 EXC-F Six Days has a Gearbox of 6-speed.
How much does the KTM 500 EXC-F Six Days weigh?
The 2021 KTM 500 EXC-F Six Days has a Dry weight of 106.0 kg (233.7 pounds).
Shop this bike
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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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