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Enduro Bikes

2011KTM 400 EXC

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The 2011 KTM 400 EXC is a lightweight enduro bike engineered for trail riders and weekend adventurers seeking a nimble, fuel-efficient machine. Its single-cylinder four-stroke engine delivers smooth, controllable power ideal for technical terrain and long-distance off-road exploration. Known for its reliability and manageable performance, it excels in demanding enduro racing and backcountry riding.

Capacity
393.4 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 400 EXC

vs the 2010
Spec20102011
Front suspension WP USD fork WP USD 48 mm (1.89 in)
Other years 2009 2010 2011

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 45Agility 95Comfort 40Off-road 97Touring 30Road manners 35
Off-road & trail97%
Cornering80%
City riding25%
Daily riding25%
Touring25%
Two-up5%
Track40%
Best for
Built purely for serious trail riding, enduro competition, and technical off-road terrain rather than road use or straight-line speed.
Built for
A lightweight, high-strung, race-bred single-cylinder enduro machine that rewards aggressive, active riding with exceptional agility, ground clearance, and suspension travel.
Not ideal for
Not a good fit for riders wanting highway comfort, long-distance touring range, passenger capability, or a low, easy-to-manage commuter 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 us
At 985mm, a rider of 175cm with a 79cm (estimated) inseam will not reach the ground comfortably on the 2011 KTM 400 EXC, 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.

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Full specifications

Engine
Capacity
393.4 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 55.5 mm
Compression
11.1:1
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
Wet weight
122.0 kg
Fuel capacity
9.50 litres
Ground clearance
380 mm
Chassis & suspension
Frame
Central double-cradle-type 25CrMo4. 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: .

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 200920102011
Capacity 393 cc 393 cc 393 cc
Dry weight 114 kg 114 kg 114 kg
Seat height 985 mm 985 mm 985 mm
Fuel capacity 9 L 9.5 L 9.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the KTM 400 EXC?

The 2011 KTM 400 EXC has a Capacity of 393.4 ccm (24.01 cubic inches).

What engine power does the KTM 400 EXC have?

The 2011 KTM 400 EXC has a Power of 50.0 HP (36.8 kW).

How many gears does the KTM 400 EXC have?

The 2011 KTM 400 EXC has a Gearbox of 6-speed.

How much does the KTM 400 EXC weigh?

The 2011 KTM 400 EXC has a Dry weight of 113.9 kg (251.1 pounds).

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