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Enduro Bikes

2006KTM 640 LC4 Enduro

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The 2006 KTM 640 LC4 Enduro is a rugged single-cylinder offroad machine built for serious adventure riders tackling demanding terrain. Its potent 625cc four-stroke engine delivers excellent torque and reliability, while the liquid-cooled design ensures durability on extended expeditions. Known for exceptional off-road capability and user-friendly handling, it remains a favorite among enduro enthusiasts seeking genuine adventure performance.

Capacity
625.0 ccm
Engine
Single
Gearbox
5-speed
Dry weight
148.0 kg
Seat height
910 mm
Power
52.0 HP (38.2 kW)

What’s new for the 2006 KTM 640 LC4 Enduro

vs the 2005
Spec20052006
Rear suspension WP Monoshock WP Monoshock with Pro Lever
Other years 2003 2004 2005 2006 2007

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 44Agility 84Comfort 40Off-road 92Touring 35Road manners 50
Off-road & trail92%
Cornering65%
City riding45%
Daily riding40%
Touring35%
Two-up20%
Track20%
Best for
Built primarily as a serious enduro machine for trails, gravel, and technical terrain, with occasional road use as a secondary role.
Built for
A raw, torquey single-cylinder enduro with a lively, physical riding experience and minimal creature comforts.
Not ideal for
Not a good fit for riders wanting a smooth, comfortable highway tourer or a low, easy-to-handle 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 910mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2006 KTM 640 LC4 Enduro, with a cramped knee angle of around 80 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
625.0 ccm
Power
52.0 HP (38.2 kW)
Engine type
Single
Power/weight ratio
0.3514 HP/kg (dry)
Bore x stroke
101.0 x 78.0 mm
Compression
11.7:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Electric & kick
Ignition
Kokusan DC-CDI
Valves per cylinder
4
Lubrication system
Pressure lubrication with 2 Eaton pumps
Torque
Not on record - add it
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet multi-disc clutch, operated hydraulically
Dimensions & weight
Wheelbase
1510 mm
Overall width
640 mm
Seat height
910 mm
Dry weight
148.0 kg
Wet weight
158.0 kg
Fuel capacity
11.20 litres
Ground clearance
300 mm
Chassis & suspension
Frame
Central double-cradle-type 25 CrMo4
Front suspension
WP-USD 43 mm (1.89 inches)
Rear suspension
WP Monoshock with Pro Lever
Front wheel travel
300 mm
Rear wheel travel
335 mm
Rake (fork angle)
28.0°
Trail
112 mm
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
300 mm
Rear brakes
Single disc
Rear brakes diameter
220 mm
Front tyre
90/90-21
Rear tyre
140/80-18

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 20032004200520062007
Capacity 625 cc 625 cc 625 cc 625 cc 625 cc
Dry weight 149 kg 149 kg 148 kg 148 kg 148 kg
Seat height 925 mm 925 mm 910 mm 910 mm 910 mm
Fuel capacity 12 L 12 L 11.2 L 11.2 L 11.2 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 640 LC4 Enduro?

The 2006 KTM 640 LC4 Enduro has a Capacity of 625.0 ccm (38.14 cubic inches).

What engine power does the KTM 640 LC4 Enduro have?

The 2006 KTM 640 LC4 Enduro has a Power of 52.0 HP (38.2 kW).

How many gears does the KTM 640 LC4 Enduro have?

The 2006 KTM 640 LC4 Enduro has a Gearbox of 5-speed.

How much does the KTM 640 LC4 Enduro weigh?

The 2006 KTM 640 LC4 Enduro has a Dry weight of 148.0 kg (326.3 pounds).

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