KTM 640 DUKE II 2006 - Motorcycle specifications

Naked

with its insect-like face, the KTM Duke II doesn't go unnoticed. The Austrian brand presents a machine unlike any other. Does it shock you? Good, because you're about to discover an exceptional machine. 17-inch BBS rims, 320 mm brake disc, dual exhaust under the saddle, Magura handlebars, and a 624 cm³ single-cylinder delivering a whopping 55 horsepower. The finish is excellent and, despite its exclusive appearance, the machine is designed to be usable and enjoyable on a daily basis. The engine is smooth and lively, not hesitating to rev, and suffers no loss of power over its range of use. the perfect riding position, firm suspension and short fork travel all encourage sporty, aggressive riding. in this respect, the Duke II is more willing to accept sporty riding, which is rewarded with formidable efficiency. Braking is excellent and has no trouble stopping the 145 kilos of this strange insect. More than a toy, this machine can also be a formidable tool for those who know how to tame it, for the beast is temperamental, but oh so enjoyable.

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M.B
(inspired by Moto-journal - manufacturer's photos)

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KTM 640 DUKE II (2006) : What you need to know before you buy

Theadvantages

Aesthetics
Engine
Fun, if you're a specialist

Thedisadvantages

Vibrations
For specialists only
Nasty front brake

Prices

	Basic version
France	8,700€

Bikers' reviews

of 22 reviews Read reviews

Model sold in

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

Performance

Max speed : over 160 km/h (99.40 mph)
Average fuel consumption : 7 liters/100km (0.34 mpg)
Estimated range : 160 km (99 miles)
Calculated range until tank is empty, not verified.

Specifications

KTM 640 DUKE II 2006

Chassis
Frame : single split cradle in steel
Fuel capacity : 11.20 liters (2.96 US gallons)
Seat height : 900 mm (35.43 in)
Wheelbase : 1,460 mm (57.48 in)
Dry weight : 152 kg (335 lb)

Front axle
Telehydraulic inverted WP forks Ø 43 mm, Wheel travel : 140 mm (5.51 in)
Braking 1 disc Ø 320 mm (12.6 in), 4-piston caliper
Front tire : 120 / 70 - 17 → Order this type of tire

Transmission
5 stage gearbox
Secondary by chain

Rear axle
WP monoshock, Wheel travel : 170 mm (6.69 in)
Braking 1 disc Ø 220 mm (8.66 in), single-piston caliper
Rear tire : 160 / 60 - 17 → Order this type of tire

Motor
single-cylinder , 4 strokes
1 Ø 40 mm carburettor
Cooling system : liquid
1 ACT
4 valves per cylinder
624.60 cc (Bore x stroke: 101 x 78 mm)
55 ch (54.20 hp) to 7,500 rpm
5.80 mkg to 5,500 rpm
Power-to-weight ratio : 2.8 kg/ch
Weight / torque ratio : 26.21 kg/mkg
Compression : 11.7 : 1

exhaust

motor

fluid

electricity

filtration

braking

Chain kit

Gallery

Models

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

Competitors

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Comparison

Give your opinion on this 640 DUKE II 2006

Bikers' reviews (22)

yep Model 1998

I bought it new in 1998. I still have it. With a rear suspension adjustment by a specialist, I found my excellent toy even better, she tried Corsica, the Pyrenees, the mountains, the freeway, the city, I keep her. That says it all. 03/16/2019 11:38 Rating : 5/5 Respond to yep

boubalite06 Model 2000

FRANCHEMENT SUPER MOTO J'AI LA 2004 EN NOIR FRANCHEMENT APAR L'ENTRETIEN UN PEU CHERO C'EST VRAIMENT UNE SUPER MOTO MEME AVEC 55CH LES SPORTIVE ET AUTRE MOTO PEUVE S'ACCROCHER POUR SUIVRE DANS LES VIRAGE ETC CAR SAIS SUPER MAGNIABLE VOILA 03/24/2011 09:05 Rating : 5/5 Respond to boubalite06

alain Model 1998

hello,
i've just bought it second hand, superb, it's amazing in the turns, nothing to complain about,
i'm shocked, as they say "too good"
alain 09/07/2009 10:31 Rating : 5/5 Respond to alain

kTm_Dark_R Model 1998

I've had my Duke for 1 month, I've just finished breaking it in, it's my first bike and frankly I don't regret my choice!
It's a great bike and every day I discover a little more about it
I'm still getting to grips with it, so much so that its potential is enormous (I'm talking about entering and exiting corners, of course!)
In any case, I love it ;-)

08/10/2006 20:26 Rating : 5/5 Respond to kTm_Dark_R

stuntman Model 1998

chris, your height is nothing, I'm a guy and I'm only 1m64 12/09/2005 21:07 Rating : 5/5 Respond to stuntman

Tom_ktm Model 1998

The duke is a fantastic motorcycle, the ultimate toy, rotting sportbikes on winding roads... Tonio, sorry for you but you can't form an opinion on a stroke of bad luck, there's a rate of bad series among all manufacturers. personally I've had 5 katoches in 7 years and I've never had a problem even with my duke 1 which I sold at 28000Km but if you think Japanese bikes never break... 12/06/2005 13:58 Rating : 5/5 Respond to Tom_ktm

Chris Model 1998

Well, I'm just waiting for next spring so I can buy MY Duke. All black... I dream about it at night. For me, its only flaw is the seat height. Well, I'm a 1m68 chick... 07/07/2005 08:59 Rating : 5/5 Respond to Chris

Dest Model 1998

V à tous, ma duke2 c simple son seul défaut c'est d'être bridé en 34ch! eurrrrrk! sinon oui ça vibrate, oui c'est inconfortable sur longue distance droite, oui on ne taille pas la route avec et le duo est ultra limité et alors??? What a joy to ride, and what a face! (especially in Arctic white (2002)) and the sound with the prepared line, râââââh lovely... I keep it as long as I can, and when I change it, it's when I have money for something bigger! 06/15/2005 17:05 Rating : 5/5 Respond to Dest

jean pierr Model 1998

i've always dreamed of a great biker but it's the capacity of the bobonne that has always made me hesitate to call for headlights 03/27/2005 09:50 Rating : 5/5 Respond to jean pierr

novice duk Model 1998

good accelerations.nervous.precise.......
good braking.it vibrates..but you get used to it..it lives like an engine..let yourself be taken in by it in moderation..lightning engine... 03/10/2005 08:49 Rating : 5/5 Respond to novice duk

M4stoc Model 1998

as on all forums I think there are never 2 people in agreement but frankly the dukeII is a great bike whatever people say. I think that these people have never tried it and that they just have the balls compared to the price certainly it is expensive but except if it ends up broken in 2 in the arms of a large bourrin I think that the price is carrement worth the candle vive la wache , dukeII powaaaaaaa!!!!!!!!! 02/24/2005 12:45 Rating : 5/5 Respond to M4stoc

AC DC Model 1998

It's good stuff, that's for sure, but we're still a long way from the S M enjoyment achieved on a Vertemati, a Vor, a Monnier or even a Husaberg
02/19/2005 11:59 Rating : 5/5 Respond to AC DC

jb Model 1998

WAAAAAAAAAAAAAA c ma seule raison de vivre un veritable monstre SM koi de mieu............rien 01/27/2005 22:25 Rating : 5/5 Respond to jb

stuntman Model 1998

franchement lofofora tu c pa ce c kune bonne moto, moi personnellement je v en faire ma 1ere moto 01/10/2005 00:11 Rating : 5/5 Respond to stuntman

tschell Model 1998

haaaaaa, the Duke. Or should I say MY Duke. One of the most beautiful motorcycles in existence. An engine that's generous with sensations. A real bike. A bit temperamental, of course, but it's so much less smooth than a Japanese bike! In short, I love my Duke (a 2002 model, which I've been pampering ever since) and I'm not about to change it! Long live the big Austrian mono :-)!!!! 01/10/2005 00:11 Rating : 5/5 Respond to tschell

adrien Model 1998

it's klr! it's a blast to ride! it goes off at the briefest acceleration, it rips your arms off with its monstrous torque and it's beautiful too! :) but, like all motorcycles, it requires maintenance. 01/10/2005 00:10 Rating : 5/5 Respond to adrien

pellou Model 1998

Totally agree, the single-cylinder, there's nothing better!!!! Pleasure guaranteed! 01/10/2005 00:10 Rating : 5/5 Respond to pellou

Kheops Model 1998

I totally agree with seb and Blanka, you MUST try mono ;o) 01/10/2005 00:09 Rating : 5/5 Respond to Kheops

Blanka Model 1998

I agree with Seb, it's a killer bike... A bon entendeur 01/10/2005 00:09 Rating : 5/5 Respond to Blanka

seb Model 1998

lofofora have you ever tried a single cylinder packed with torque and power in your life? because if you had, you'd immediately throw away your multi-cylinder!!! you're the type to have 100 hp, to open wide on the freeway and go well over the speed limit but that's rubbish....it's better to use 100% of 50 hp than 50% of 100 hp 01/10/2005 00:09 Rating : 5/5 Respond to seb

Tonio Model 1998

I was rather Japanese and then I crossed the step, I bought a beautiful dukeII and since much pleasure especially in town and on small roads but especially.... a lot of EMMERDES !!!! of the electric problems, all devisse and makes the malle. But that's not the worst of it...have a look here: http://www.17pouces.net/forum/viewtopic.php?t=10170 The frame broke in 2!!! So on a 8000 euros bike with only 4000 km, it's a shame. Unfortunately, I think I'll be going back to japs.... Tonio, angry with KTM 01/10/2005 00:08 Rating : 5/5 Respond to Tonio

LOFOFORA Model 1998

It's very pretty, but what's the point of this kind of bike? You might as well go mountain biking, it's the same without the noise and pollution 01/10/2005 00:08 Rating : 5/5 Respond to LOFOFORA

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Essentials

The safety of your rider and the performance of your motorcycle are paramount. At our partner 'Revzilla', you'll find everything you need, from equipment to spare parts, to maintain your machine to perfection.