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Adventure Motorcycles

2001KTM LC4 Adventure 640

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The 2001 KTM LC4 Adventure 640 is a capable single-cylinder enduro bike designed for adventure and off-road enthusiasts seeking a lightweight, manageable machine. Its torquey LC4 engine and 154kg dry weight make it ideal for riders tackling challenging terrain without excessive bulk. Best known for reliability and versatile performance across mixed riding conditions.

Capacity
625.0 ccm
Engine
Single
Gearbox
5-speed
Dry weight
154.0 kg
Seat height
935 mm
Power
49.0 HP (36.0 kW)
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How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 45Agility 78Comfort 55Off-road 88Touring 65Road manners 50
Off-road & trail88%
Cornering62%
City riding45%
Daily riding50%
Touring65%
Two-up40%
Track25%
Best for
Built as a big-bore dual-sport adventure machine, it excels at long gravel and trail routes with the ability to cover real distance thanks to its large fuel tank.
Built for
A gruff, characterful big single that rewards a relaxed, standing-up riding style with strong low-end torque and a rugged, go-anywhere feel.
Not ideal for
Not a good match for shorter riders, pure pavement commuters seeking smoothness, or anyone wanting sport-bike acceleration and top-end speed.

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 935mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2001 KTM LC4 Adventure 640, with a moderate knee angle of around 105 degrees and a slightly forward 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 →

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Full specifications

Engine
Capacity
625.0 ccm
Power
49.0 HP (36.0 kW)
Torque
52.0 Nm (5.3 kgf-m)
Engine type
Single
Power/weight ratio
0.3182 HP/kg (dry)
Bore x stroke
101.0 x 78.0 mm
Compression
11.5:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Electric
Ignition
Kokusan DC-CDI
Valves per cylinder
4
Lubrication system
Pressure lubrication with 2 Eaton pumps
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet multi-disc clutch, operated hydraulically
Performance
Top speed
165.0 km/h (102.5 mph)
Dimensions & weight
Wheelbase
1510 mm
Overall width
640 mm
Seat height
935 mm
Dry weight
154.0 kg
Fuel capacity
28.00 litres
Ground clearance
375 mm
Chassis & suspension
Frame
chromium-molybdenum, power-coated
Front suspension
WP-USD 43 MA
Rear suspension
WP - Monoshock
Front wheel travel
270 mm
Rear wheel travel
320 mm
Rake (fork angle)
27.5°
Trail
124 mm
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
320 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.

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Common questions

What is the engine size of the KTM LC4 Adventure 640?

The 2001 KTM LC4 Adventure 640 has a Capacity of 625.0 ccm (38.14 cubic inches).

What engine power does the KTM LC4 Adventure 640 have?

The 2001 KTM LC4 Adventure 640 has a Power of 49.0 HP (36.0 kW).

How many gears does the KTM LC4 Adventure 640 have?

The 2001 KTM LC4 Adventure 640 has a Gearbox of 5-speed.

What is the torque of the KTM LC4 Adventure 640?

The 2001 KTM LC4 Adventure 640 has a Torque of 52.0 Nm (5.3 kgf-m or 38.4 ft.lbs).

How much does the KTM LC4 Adventure 640 weigh?

The 2001 KTM LC4 Adventure 640 has a Dry weight of 154.0 kg (339.5 pounds).

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