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Zero

   

KTM 640 LC4 Adventure

 

 

 

 

Make Model

 KTM 640 LC4 Adventure

Year

1999

Engine

Liquid Cooled, four stroke, single Cylinder. SOHC, 4 Valve per cylinder,

Capacity

625
Bore x Stroke 101 X 78 mm
Compression Ratio 11.5:1

Induction

Mikuni BST 40

Ignition  /  Starting

Kokusan Electronic Digital  /  kick & electric

Max Power

49 hp 35.7 kW @ 7500 rpm

Max Torque

52 Nm @ 5500 rpm

Transmission  /  Drive

5 Speed   /  chain

Front Suspension

48mm WP upside-down forks, 270mm wheel travel

Rear Suspension

WP monoshock, 310mm wheel travel

Front Brakes

Single 300mm disc 4piston caliper

Rear Brakes

Single 220mm disc 1 piston caliper

Front Tyre

90/90-21

Rear Tyre

130/80-16
Seat Height 945 mm /  37.2 in

Dry-Weight

154 kg

Fuel Capacity

28 Litres
Manual

glacoinc.brinkster.net  /  blackbears.ru  /  glacoinc.brinkster.net

Inspired on the much bigger, Paris-Dakar winning motorcycle (KTM 990 Adventure), the 640 Dual Sport motorcycle presented by KTM retains only the good features such as versatility, agility, power and gets reed of the unnecessarily weight and size, resulting in an easy to ride all around motorcycle with plenty of power coming from the LC4 single-cylinder engine which proved successful on many KTM models (the Duke, SMC, LC4).

During the time Iíve ridden KTMís 640 Adventure I saw a new face of motorcycling and I sure loved it. Attraction immediately came as I jumped onto its seat and fired up the four-stroke 625cc single-cylinder motor. The riding position is perfect for medium sized persons, just like me, and the exhaust note is deep, making the rider well aware of where the rpm level is all the time.

Putting the bike into first gear doesnít involve any fatigue and the clutch feel is firm and precise. Having ridden KTM bikes fitted with the same engine, I was now expecting a quick go coming from the single-cylinder, but I must say that throttle response, although immediate, was tuned towards trail riding so it is a bit smoother and reassuring.

The engine is enough powerful for almost anything that the off-road will require: climbing steep hills, passing through rivers, and spreading dirt. You name it and the 52 horses at 7000 rpm will deal with, problems excluded. It will also be the result of a torquey engine (55 Nm at 5500 rpm) which provides all of the tractable power that gets you out of trouble and very often impresses your buddies. I had no problems taking the 640 Adventure in deep mud and then wash it as I passed the river (my feet were already wet and the boots needed to be cleaned anyway, so what better method?).

Also out on the trails I managed to get the front wheel off the ground by suddenly twisting the throttle and it was quite a pleasure to do this as the terrain ahead presented many step-like bumps. Impressive pull saves the day!

But this type of exploitation also requires good-performing suspensions and the WP front and rear units are more than suitable for the job. I did not manage to reach the forkís bottom end more than two times and that happened while landing from an ambitious and optimistic jump above a thick log.

The front brake played a trick on me (or I may have played a trick on the front brake) on wet grass surface, determining the front wheel to slip and the rider to taste some muddy grass. It is more of a talent thing than efficiency as you have to calculate how much to pull the lever, taking in consideration the fork compression and the grip of the surface youíre on. I guess that this is why Iíve never seen an off-road rider with no broken bones. On normal, street use, the performance Brembo brakes which apply their pistons on two 300mm discs up front and a single 220mm disc at the rear prove very efficient and confident-inspiring. I preferred using both brakes because I didnít wanted to taste the asphalt (I reckon that this ride report would have been published pretty late). Even so, it is steady and confident under powerful braking.

Iíve taken the bike down the freeway and up to 80mph so I would get a feel of those harsh vibrations that tend to make customers avoid it and I must say that evolution has clearly said its word and even though present through the handlebars and footpegs, the vibration levels are acceptable and easy to live with. Would you preferred the engineís grunt to fade away concomitant to the rpm increase? I donít think so.

Conclusion

A wonderful mix of power, versatility and fun is what makes the 640 Adventure Travellerís Edition a true blast each time you ride it. Prepared for the long run on and especially off the road, the bike is a true representation of KTMís dedication on delivering the best performing and one of the most agile all-around motorcycles on the market today.

 

 

 

NOTE: Any correction or more information on these motorcycles will kindly be appreciated, Some country's motorcycle specifications can be different to motorcyclespecs.co.za. Confirm with your motorcycle dealer before ordering any parts or spares. Any objections to articles or photos placed on motorcyclespecs.co.za will be removed upon request.  

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