KTM 400 EXC - 2011 Specifications and Reviews

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.

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General information

CategoryEnduro / offroad
Year2011
ModelKTM 400 EXC
 
 

Engine and Transmission Specifications

Exhaust systemAluminium
Driveline15:45 (13:52). Primary drive: 33:76.
ClutchWet mDouble disk clutch, operated hydraulically
Gearbox6-speed
Cooling systemLiquid
Lubrication systemPressure lubrication with 3 oil pumps
IgnitionKokusan
Fuel controlOHC
Fuel systemCarburettor. Keihin FCR-MX 39
Bore x stroke95.0 x 55.5 mm (3.7 x 2.2 inches)
Compression11.1:1
Engine typeSingle cylinder, four-stroke
Capacity:393.40 ccm (24.01 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Wheels1.60 x 21in., 2.15 x 18in. Excel
Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions140/80-18
Front tyre dimensions90/90-21
Rear suspension travel185 mm (7.3 inches)
Rear suspensionWP-PDS shock absorber
Front suspension travel185 mm (7.3 inches)
Front suspensionWP USD 48 mm (1.89 in)
Rake (fork angle)26.5°
Frame typeCentral double-cradle-type 25CrMo4. Subframe: Aluminium.

Physical measures and capacities

Fuel capacity9.50 litres (2.51 gallons)
Wheelbase1,475 mm (58.1 inches)
Ground clearance380 mm (15.0 inches)
Seat height985 mm (38.8 inches) If adjustable, lowest setting.
Dry weight113.9 kg (251.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsOrange/white/black
StarterElectric & kick

Performance Profile & Rider Fit

Best For

Track40%
City25%
Cornering80%
Daily Riding25%
Touring25%
Passenger5%

Rider Profile

Best ForBest suited to intermediate and experienced off-road riders who can manage a light, tall, high-compression enduro bike with a manual clutch and no rider aids.
PurposeBuilt purely for serious trail riding, enduro competition, and technical off-road terrain rather than road use or straight-line speed.
Rider FitThe very tall seat height, firm suspension, and standing-oriented ergonomics demand good fitness, leg length, and off-road riding skill; it is not a forgiving bike for short or inexperienced riders.
CharacterA lightweight, high-strung, race-bred single-cylinder enduro machine that rewards aggressive, active riding with exceptional agility, ground clearance, and suspension travel.
Not Ideal ForNot a good fit for riders wanting highway comfort, long-distance touring range, passenger capability, or a low, easy-to-manage commuter bike.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2011 KTM 400 EXC Rider Ergonomics Assessment

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Feet:

At 985mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2011 KTM 400 EXC, with a moderate knee angle of around 90 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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