2011KTM 450 EXC SixDays

35 fields on record

The 2011 KTM 450 EXC SIXDAYS is a hardcore enduro machine purpose-built for serious off-road competitors and experienced riders tackling extreme terrain. Powered by a potent 449cc liquid-cooled four-stroke single with 11.9:1 compression, it delivers aggressive power delivery suited to rally racing and long-distance cross-country events. Best known for its competition-grade engineering and legendary reliability in the grueling Six Days Enduro, this bike remains a benchmark for dedicated enduro enthusiasts.

Capacity: 449.3 ccm
Engine: Single, four-stroke
Gearbox: 6-speed
Dry weight: 113.9 kg
Seat height: 985 mm
Power: 50.0 HP (36.8 kW)

⇄ Compare with another bike ＋ Add to garage All model years

What’s new for the 2011 KTM 450 EXC SixDays

vs the 2009

Spec	2009	2011
Fuel capacity	9.00 litres (2.38 US gallons)	9.50 litres (2.51 US gallons)
Front suspension	WP USD, 48 mm	WP USD 48 mm (1.89 in)
Rear suspension	WP monoshock PDS	WP PDS shock absorber

Other years 2009 2011 2012 2013 2014 2015 2016

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail98%

Cornering85%

City riding20%

Daily riding20%

Touring20%

Two-up5%

Track30%

Best for: Built for hardcore enduro racing and technical trail riding, particularly multi-day events like the Sixdays it's named after, rather than street use or casual commuting.
Built for: A raw, high-strung dirt tool with a punchy 450cc single, long-travel WP suspension, and razor-sharp agility that thrives in mud, rocks, and tight trails.
Not ideal for: This is not the right bike for riders wanting a comfortable commuter, a passenger-friendly tourer, or a plush highway cruiser.

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 us

Your height

Inseam (optional)

Units

At 985mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2011 KTM 450 EXC SixDays, with a moderate knee angle of around 90 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 449.3 ccm
Power: 50.0 HP (36.8 kW)
Engine type: Single, four-stroke
Power/weight ratio: 0.4390 HP/kg (dry)
Bore x stroke: 95.0 x 63.4 mm
Compression: 11.9:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric & kick
Ignition: Kokusan
Valves per cylinder: 4
Lubrication system: Pressure lubrication with 3 oil pumps
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet mDouble disk clutch, operated hydraulically

Dimensions & weight

Wheelbase: 1475 mm
Seat height: 985 mm
Dry weight: 113.9 kg
Fuel capacity: 9.50 litres
Ground clearance: 380 mm

Chassis & suspension

Frame: Central double-cradle-type 25CrMo4 steel. Subframe: Aluminium.
Front suspension: WP USD 48 mm (1.89 in)
Rear suspension: WP PDS shock absorber
Front wheel travel: 300 mm
Rear wheel travel: 335 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: 90/90-21
Rear tyre: 140/80-18

Other

Color options: Orange/white/black

Specs last verified against published sources: October 2026.

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	2011	2012	2013	2015	2016
Capacity	449 cc	449 cc	449 cc	449 cc	449 cc	449 cc
Dry weight	114 kg	114 kg	111 kg	112 kg	111 kg	111 kg
Seat height	985 mm	985 mm	970 mm	970 mm	970 mm	970 mm
Fuel capacity	9 L	9.5 L	9.5 L	9 L	9 L	9 L