Enduro Bikes
2021KTM 450 EXC-F Six Days
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The 2021 KTM 450 EXC-F Six Days is a competitive enduro machine built for experienced off-road riders tackling demanding terrain and multi-day events. Powered by a nimble 450cc liquid-cooled four-stroke engine paired with WP suspension technology, it delivers responsive performance and excellent fuel efficiency. This model excels in technical riding situations where precision handling and reliable power delivery are paramount.
- Capacity
- 449.9 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 106.0 kg
- Seat height
- 960 mm
- Power
- 50.0 HP (36.8 kW)
What’s new for the 2021 KTM 450 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 | Double disc. Brembo radial-type, with 42pistons | Double disc |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's a purpose-built extreme enduro and hard-terrain competition machine, closely derived from KTM's factory Six Days race edition.
- Built for
- Sharp, light, and explosive, it rewards aggressive throttle control and precise body positioning with race-bred agility over rocks, roots, and ruts.
- Not ideal for
- This is not a good fit for commuting, casual road riding, two-up touring, or anyone wanting a comfortable, low-maintenance daily bike.
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
- 449.9 ccm
- Power
- 50.0 HP (36.8 kW)
- Engine type
- Single, four-stroke
- Fuel consumption
- 3.70 litres/100 km (27.0 km/l)
- Power/weight ratio
- 0.4717 HP/kg (dry)
- Bore x stroke
- 95.0 x 63.4 mm
- Compression
- 12.7:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Keihin EMS
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc
Dimensions & weight
- Wheelbase
- 1486 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 frame
- Front suspension
- WP XPLOR-USD, Ø 48 mm
- Rear suspension
- WP Xplor PDS schock absorber
- Front wheel travel
- 300 mm
- Rear wheel travel
- 310 mm
- Rake (fork angle)
- 26.3°
Brakes & wheels
- Front brakes
- Double disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc. Brembo with single pistons
- Rear brakes diameter
- 220 mm
- Front tyre
- 1.60-21
- Rear tyre
- 2.15-18
Other
- Color options
- Orange/Black/White
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 | 2017 | 2019 | 2021 | 2022 | 2024 |
|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 450 cc | 450 cc | 450 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 | 8.5 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 450 EXC-F Six Days?
The 2021 KTM 450 EXC-F Six Days has a Capacity of 449.9 ccm (27.45 cubic inches).
What engine power does the KTM 450 EXC-F Six Days have?
The 2021 KTM 450 EXC-F Six Days has a Power of 50.0 HP (36.8 kW).
How many gears does the KTM 450 EXC-F Six Days have?
The 2021 KTM 450 EXC-F Six Days has a Gearbox of 6-speed.
How much does the KTM 450 EXC-F Six Days weigh?
The 2021 KTM 450 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 450 EXC-F Six Days is a powerful and versatile off-road motorcycle that is perfect for experienced riders. This bike offers impressive performance and handling, making it a top choice for those who love to tackle tough terrain. With its lightweight frame and powerful engine, the 450 EXC-F Six Days delivers excellent agility and responsiveness, allowing riders to navigate challenging trails with ease. The bike's high-quality components and advanced technology make it a reliable and durable option for off-road enthusiasts.
In addition to its exceptional performance, the 2021 KTM 450 EXC-F Six Days features a stylish design and comfortable ergonomics. Its Six Days special edition graphics and color scheme give it a unique and eye-catching appearance, while its comfortable seating position and intuitive controls ensure a pleasant riding experience. Whether you're hitting the trails for a day of adventure or participating in competitive off-road races, the 450 EXC-F Six Days is a top-tier choice for riders who demand the best from their motorcycle. With its impressive performance, durable construction, and stylish design, this KTM bike is a standout option for off-road enthusiasts.
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