Enduro Bikes
2021KTM 250 EXC SixDays
34 fields on record
The 2021 KTM 250 EXC SixDays is a premium two-stroke enduro bike named after the famous Six Days event. Its liquid-cooled 249cc single makes 45 hp through a six-speed gearbox and chain. With a 960 mm seat, 100.5 kg dry weight and a 9.5-litre tank, it is built for hard enduro.
- Capacity
- 249.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 100.5 kg
- Seat height
- 960 mm
- Power
- 45.0 HP (33.1 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for serious enduro racing and technical trail riding, including multi-day events like the Six Days rally it's named after, rather than everyday transport.
- Built for
- It rewards an aggressive, momentum-based riding style with sharp two-stroke throttle response, light flickable handling, and confidence-inspiring long-travel suspension over rough terrain.
- Not ideal for
- This is not a good fit for new riders, commuters, highway travelers, or anyone wanting comfort, storage, or passenger capability.
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
- 249.0 ccm
- Power
- 45.0 HP (33.1 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.4478 HP/kg (dry)
- Bore x stroke
- 66.4 x 72.0 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric & kick
- Ignition
- Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
- Lubrication system
- Forced oil lubrication with 2 Eaton 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
- 100.5 kg
- Fuel capacity
- 9.50 litres
- Ground clearance
- 370 mm
Chassis & suspension
- Frame
- Chrome-molybdenum steel central-tube
- Front suspension
- WP-USD Xplor 48 with preload adjuster
- 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. Brake calipers on floating bearings
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc. Brake calipers on floating bearings
- Rear brakes diameter
- 220 mm
- Front tyre
- 90/90-21
- Rear tyre
- 140/80-18
Other
- Color options
- Orange/white/red/blue
Specs last verified against published sources: .
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 | 2009 | 2014 | 2018 | 2021 | 2022 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 249 cc | 249 cc | 249 cc | 249 cc | 249 cc | 249 cc |
| Dry weight | 101 kg | 104 kg | 101 kg | 101 kg | 101 kg | 104 kg |
| Seat height | 985 mm | 960 mm | 960 mm | 960 mm | 960 mm | 963 mm |
| Fuel capacity | 9.5 L | 9.5 L | 9.5 L | 9.5 L | 9.5 L | 9 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 250 EXC SixDays?
The 2021 KTM 250 EXC SixDays has a Capacity of 249.0 ccm (15.19 cubic inches).
What engine power does the KTM 250 EXC SixDays have?
The 2021 KTM 250 EXC SixDays has a Power of 45.0 HP (33.1 kW).
How many gears does the KTM 250 EXC SixDays have?
The 2021 KTM 250 EXC SixDays has a Gearbox of 6-speed.
How much does the KTM 250 EXC SixDays weigh?
The 2021 KTM 250 EXC SixDays has a Dry weight of 100.5 kg (221.6 pounds).
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