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  • Regarding Powerband and Stock ECU performance.

    Regarding this powerband, I never knew where all the action is and all I know I am on a very fast bike................yep 25 bhp bike for sure if not more.

    My bike can accelerate as fast as the CBR itself(if not more in some cases), the CBR does the 0-100kmph in less gears and my Duke requires all five.Now the thing is the Duke engine revs way too faster and quick appropriate gear shifts -suitably after 8,000 rpms sky walks this bike.
    Between 8000 rpms where the max torque pushes the bike and the revs fly to power peaking,which on shifting falls into the torque feed again.

    But I do not know something,dat is my bike always show a full rpms bar only till 9,500 rpms beyond this it revs till 10.5K which are in highlighted blank rpms bar.
    So the bike never redlines, which means this might be keeping the average Indian fuel quality in mind, which wont allow detonation in the redline to access the explosive speed and power.

    For all I know, sports bikes which mostly have stressed short stroke engines like the Duke 200 need the good detonation inside the engine to make that explosive power.Somehow,KTM is a superb Streetfighter but not a proper Sportsbike and being the Streetfighter, its nature is fully in sync with the best Streetfighters out there, for example Suzuki GSR750.

    My bike does normal KTM figures- the speedo indicated is 137 kmph beyond which the rev limiter checks in,but goes very fast there..........infact while the CBR pulls in 5th gear, I am rolling on to that speed in 6th from 120kmph-too easily.

    Last edited by MACH50; 10-04-2012, 09:47 AM.
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    • Originally posted by Doga View Post
      Think of it. If we consider an almost linear powerband(which is especially a decent assumption in case of the Duke), then lowering the rpms by 500 is equivalent to lowering the power output by 1.25 bhp in 5th and 6th gear, which means we now have a power output of the 200NS.
      Now Should I get sad OR should i be Happy hearing the Above statement????
      sigpic
      Relationships change, evolve, and it goes deep.
      Only thing I can say - "The storm is coming"

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      • Originally posted by Doga View Post
        Even more malicious would be if they had this resetting planned before. you know, give thema beeeg number, then quietly 'flash' the ecu later when folks visit the svc without telling the details of the operation and the effects it would have on the bike performance.
        I would hate KTM if the 2nd were true.
        This is what happened during the service camp, they dont give details of what they are doing after connecting the diagnostic tool. Once the operation is done they ask us to ride the bike and say "do u feel it smoother" ? little does the owner know what has changed.
        Atleast inform the customer the pros & cons of ECU Update / Upgrade and ask them before doing it.
        30+ YEARS OF RIDING
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        Activa-i Activa 125 Yamaha R3

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        • Originally posted by s1d View Post
          This is probably the only time i have seen a manufacturer not specifying the bikes power specs on their website!
          Is ktm trying to 'hide' specs ? bad very bad.
          And sadly we hear another case of busted fork seals !!
          You are correct; KTM is purposively hiding the specifications of their Duke 200 to cheat the customers. Being disgusted, I have decided to buy an Ultra Classic Electra Glide, Road King or Street Glide of HD or Intruder M1800, Bandit or at least a Hayabusa 1300 of Suzuki.
          Going through their sites, I was surprised to see that they too are hiding these specifications from us.
          Keep away from Duke 200 as it is the only bike with a possibility of busting of fork seal. But another bike with the same engine but different gear ratio for speed is running through our roads.
          And I hope HD, Suzuki and KTM are visiting this thread regularly.

          Comment


          • Originally posted by s1d View Post
            reading these recent posts makes me n ! and their website doesnt show the power specs !??
            Want to rethink about your post?
            KTM 200 Duke - Technical Details
            Click image for larger version

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ID:	1831407

            Originally posted by punarvasu View Post
            You are correct...visiting this thread regularly.
            ROTFL!!! You're next to Kanda jee; I'm enjoying your comments as they're real stress busters . Keep it up
            Last edited by aargee; 10-04-2012, 11:59 AM.
            Skill is what keeps you on a Motorcycle
            Awareness + Skill is what keeps you out of harm's way
            ATGATT + Awareness + Skill means you might Live To Ride another day

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            • At a guess, the RPM reduction in 5th and 6th is a reliability issue. Those two gears are the only two where someone is likely to *stay* at that RPM for any length of time. KTM has probably determined or decided that there is a risk of engine failure at the higher RPM if held there too long, and they want to minimize their outlay for replacements under warranty. This goes back to my statement about the Duke being a fun little bike, but that it would beat itself to death in a couple of hours on a real highway. Since the Duke is indeed sold in countries where the maximum legal highway speed is very close to the Duke's WFO top speed, KTM may already have had a number of redline-related engine failures and decided to take action.

              I'll give you an analogy. My cousin races motorcycles; usually he rides an R6, and he usually races "endurance", where several riders take turns on the bike over a set time. Those "endurance" races are open to any bike that meets the displacement requirements, which means you will see Supermotards based on single-cylinder dual-sports out there on the track alongside the multicylinder bikes. Those supermotards will outbrake, outcorner, and in some cases outaccelerate the multicylinder bikes, but they rarely finish the race, because high-rpm running is just too stressful on single-cylinder engines. Ditto with the Duke.

              Unfortunately, that means those of us here in India, where top speed is something rarely seen, and done only once in a while for fun, have to pay the price so the commuters in Europe won't have to replace their engines every other month. From the sound of things, KTM needs to split the difference on the ECU remap, and while dropping the limiter in 5 and 6, they need to punch up the bottom end again so the bike doesn't feel totally emasculated.
              Last edited by The Mountain; 10-04-2012, 12:06 PM.
              ATGATT: All The Gear, All The Time!

              Current bike: Yamaha XT1200Z Super Tenere

              Put the phone away, put your helmet on, and ride!

              Scooters are like fat girls: fun to ride, but embarrassing if your friends see you with one.

              Comment


              • Originally posted by Shibadip View Post
                Now Should I get sad OR should i be Happy hearing the Above statement????
                . Take your pick!! On a serious note this statement was not made to offend pulsar 200 NS wallahs. Performance wise there is very little to differentiate between the two machines, at least on paper.Now most of my friends and 'aam junta' don't get what a trellis frame or a USD or Fi is. So I always resorted to the 1.5 odd bhp difference as an explanation for the 30k+ extra I paid for the bike.
                The hero always RIDES into the sunset!

                My Touring Logs-
                French Riviera
                https://www.xbhp.com/talkies/tourer/38345-biking-french-riviera.html
                Scotland-
                http://www.xbhp.com/talkies/tourer/3...-3600-kms.html
                France -Normandy and Paris on the CBR
                http://www.xbhp.com/talkies/tourer/3...adventure.html
                KTM chronicles-
                http://www.xbhp.com/talkies/tourer/2...hronicles.html

                Comment


                • Originally posted by Doga View Post
                  It is confirmed. The rev limiter has been reset at 10000 rpm in the 5th gear. It's still at 10500 rpm in 4th gear. I have not checked what is the case with 6th gear . I could only touch 115-117 in fifth when the limiter set in. This was tested in varying road conditions

                  Now few things which I can't wrap my head around.

                  1) What is the use of lowering the rev limit selectively if they have done it for reliability purposes? because the engine will still rev till 10500 rpms in 4 gears.
                  Did they think that most redlining is done in 5th and 6th by top end hunters?
                  Or may be it's the transmission reliability they are most worried about ?

                  2) The duke when launched had a claimed output of 25bhp at 10500 rpm. It was eye popping for a 200 cc bike at that time considering CBR205 R made the same figure, albeit at a lower rpm. Is it that KTM/Bajaj knowingly pushed the engines to its 'reliability limits'(I know it's exaggerating as the engine is still capable of making more) just to claim that figure of 25bhp keeping the CBR in mind. And now they realize their mistake and hence this castration exercise?
                  Even more malicious would be if they had this resetting planned before. you know, give thema beeeg number, then quietly 'flash' the ecu later when folks visit the svc without telling the details of the operation and the effects it would have on the bike performance.
                  I would hate KTM if the 2nd were true.
                  Think of it. If we consider an almost linear powerband(which is especially a decent assumption in case of the Duke), then lowering the rpms by 500 is equivalent to lowering the power output by 1.25 bhp in 5th and 6th gear, which means we now have a power output of the 200NS.
                  I am sure not many people would like to know that.

                  3) Why can't we get a choice of keeping the old map? I personally don't want it for the top end. I miss the action in the 1st gear while launching from zero at traffic signals.

                  I know I this post might be compared with a grumpy old man creating a fuss over things but seriously I am a peeved man!!


                  And did I mention that my horn is not working. Headlamps, starter are working fine. But the horn has just died. I rode in huge slush day before yesterday when it rained crazy in Mumbai. Any pointers?
                  I have been following the ECU remapping discussion. And by the looks of it, seems like a more stop gap measure than a permanent fixture to me. That's for the time being a specific issue might be connected to high speed runs, and Bajaj wants to check whether it's due to sustained high speed runs or not.
                  I think one should look at the brighter side, where Bajaj / KTM are actively sorting out issues, if any. For example back in the hay days of first lot 220DTSI, all 220s CDI were replaced withing 8 months. This was done to avoid "starter clutch?" failure issues. Though the new CDI helped, it restricted the bike from revving freely. However about 3 months post this replacement another set of CDIs were installed who had the RPM resttriction issue, which finally worked like a charm. Looking back at Bajaj's track record, I can vouch that in due time another ECU remap will be available, once the issues are sorted out. Duke is a great machine, for beta buyers, its a small comprise to make, I would say.

                  Originally posted by Shibadip View Post
                  Now Should I get sad OR should i be Happy hearing the Above statement????
                  Feel sad, you have more competition
                  Been There, Done That; Better!

                  Comment


                  • Originally posted by The Mountain View Post
                    At a guess, the RPM reduction in 5th and 6th is a reliability issue. Those two gears are the only two where someone is likely to *stay* at that RPM for any length of time. KTM has probably determined or decided that there is a risk of engine failure at the higher RPM if held there too long, and they want to minimize their outlay for replacements under warranty. This goes back to my statement about the Duke being a fun little bike, but that it would beat itself to death in a couple of hours on a real highway. Since the Duke is indeed sold in countries where the maximum legal highway speed is very close to the Duke's WFO top speed, KTM may already have had a number of redline-related engine failures and decided to take action.

                    I'll give you an analogy. My cousin races motorcycles; usually he rides an R6, and he usually races "endurance", where several riders take turns on the bike over a set time. Those "endurance" races are open to any bike that meets the displacement requirements, which means you will see Supermotards based on single-cylinder dual-sports out there on the track alongside the multicylinder bikes. Those supermotards will outbrake, outcorner, and in some cases outaccelerate the multicylinder bikes, but they rarely finish the race, because high-rpm running is just too stressful on single-cylinder engines. Ditto with the Duke.

                    Unfortunately, that means those of us here in India, where top speed is something rarely seen, and done only once in a while for fun, have to pay the price so the commuters in Europe won't have to replace their engines every other month. From the sound of things, KTM needs to split the difference on the ECU remap, and while dropping the limiter in 5 and 6, they need to punch up the bottom end again so the bike doesn't feel totally emasculated.

                    Engines are tested before they are declared roadworthy. I am sure KTM must have tested the engine at it's intended peak RPM for sustained periods. Why was the reliability problem not detected there? It's something very basic and important unlike say a trivial issues which may go unnoticed like paint chipping problem in a shock absorber
                    The hero always RIDES into the sunset!

                    My Touring Logs-
                    French Riviera
                    https://www.xbhp.com/talkies/tourer/38345-biking-french-riviera.html
                    Scotland-
                    http://www.xbhp.com/talkies/tourer/3...-3600-kms.html
                    France -Normandy and Paris on the CBR
                    http://www.xbhp.com/talkies/tourer/3...adventure.html
                    KTM chronicles-
                    http://www.xbhp.com/talkies/tourer/2...hronicles.html

                    Comment


                    • Originally posted by Doga View Post
                      Engines are tested before they are declared roadworthy. I am sure KTM must have tested the engine at it's intended peak RPM for sustained periods. Why was the reliability problem not detected there? It's something very basic and important unlike say a trivial issues which may go unnoticed like paint chipping problem in a shock absorber
                      All the laboratory testing in the world can't replace operational experience. The instance escapes me at the moment, but this is not the first engine I've heard of that had a reduction in redline after release.

                      It could even be something as simple as an incorrect assumption about one of the original testing parameters like temperature, time at max revs, or one of the drive ratios.
                      ATGATT: All The Gear, All The Time!

                      Current bike: Yamaha XT1200Z Super Tenere

                      Put the phone away, put your helmet on, and ride!

                      Scooters are like fat girls: fun to ride, but embarrassing if your friends see you with one.

                      Comment


                      • Re: KTM 200 Duke

                        Originally posted by The Mountain View Post
                        At a guess, the RPM reduction in 5th and 6th is a reliability issue. Those two gears are the only two where someone is likely to *stay* at that RPM for any length of time. KTM has probably determined or decided that there is a risk of engine failure at the higher RPM if held there too long, and they want to minimize their outlay for replacements under warranty. This goes back to my statement about the Duke being a fun little bike, but that it would beat itself to death in a couple of hours on a real highway. Since the Duke is indeed sold in countries where the maximum legal highway speed is very close to the Duke's WFO top speed, KTM may already have had a number of redline-related engine failures and decided to take action.

                        I'll give you an analogy. My cousin races motorcycles; usually he rides an R6, and he usually races "endurance", where several riders take turns on the bike over a set time. Those "endurance" races are open to any bike that meets the displacement requirements, which means you will see Supermotards based on single-cylinder dual-sports out there on the track alongside the multicylinder bikes. Those supermotards will outbrake, outcorner, and in some cases outaccelerate the multicylinder bikes, but they rarely finish the race, because high-rpm running is just too stressful on single-cylinder engines. Ditto with the Duke.

                        Unfortunately, that means those of us here in India, where top speed is something rarely seen, and done only once in a while for fun, have to pay the price so the commuters in Europe won't have to replace their engines every other month. From the sound of things, KTM needs to split the difference on the ECU remap, and while dropping the limiter in 5 and 6, they need to punch up the bottom end again so the bike doesn't feel totally emasculated.
                        I really doubt a Duke would "beat itself to death in couple of hours".
                        Of few 150+ cc bikes I've had in last years Duke's engine feels the least stressed at redline. Its engine is simply designed to be a high revving engine, delivering peak power at 10,000 rpm. So I highly doubt it can't go for longer times than where it delivers its peak power...
                        And if the 500 rpm reduction was because of reliability then they would reduce it in all gears, not just in 5th and 6th.

                        Anyway, today I talked to Mr. Chandrashekar at KTM, at Shivraj SVC, he's the guy to talk to about these things in Bangalore, and he said this reduction was not because of rpms but to reduce the top speed. He confirmed the new top is 132 kmh. I didn't get him why but I didn't have much time to go deeper into it. If I see him there tomorrow I'll ask him what was the real reason behind it.

                        He said in some 2 weeks they will offer another sprocket (which was announced long ago), but it will be 42t, just 1 less than current 43t. He said for those who want more top speed this will give a max of 135 kmh.

                        He also said this new ECU map is optional, and if anyone wants the old ECU map (with 10,500 rpm in all gears) they can have it back if they ask for it. So, Doga, there you go... :-)

                        I've had a 200 km ride yesterday to Bangalore, and I thought I'll be going 130 kmh on a highway. But, because of upright seating posture you can't really comfortably go faster than 120 kmh, the wind just blows you away. And crouching on Duke isn't that comfortable either...
                        So, I don't think I'd ever go at 138 kmh for anything more than 10 min, but I'd definitely like to have an option that I CAN go at that speed, if I want.

                        Comment


                        • Originally posted by aargee View Post
                          Want to rethink about your post?
                          KTM 200 Duke - Technical Details
                          [ATTACH=CONFIG]82379[/ATTACH]

                          I dont know how you got to that link!!
                          This is from the ktm india site... see the first screenshot - i do not see any power figures. ( are you sure your browser cache n temp are cleared ?!)


                          And the hp... see the second screenshot. (the one you got says 18.xxhp, while the one i am showing says 19kw)


                          ktm is misleading/hiding stuff!!
                          Start navigating from this page >> KTM 200 Duke - Highlights , and check out you will understand what i am saying.
                          Last edited by s1d; 10-04-2012, 08:06 PM.

                          Comment


                          • Originally posted by s1d View Post
                            I dont know how you got to that link!!
                            This is from the ktm india site... see the first screenshot - i do not see any power figures. ( are you sure your browser cache n temp are cleared ?!)


                            And the hp... see the second screenshot. (the one you got says 18.xxhp, while the one i am showing says 19kw)


                            ktm is misleading/hiding stuff!!
                            Start navigating from this page >> KTM 200 Duke - Highlights , and check out you will understand what i am saying.
                            For some reason my screenshots are not getting posted...
                            i now figured out why you see those figures and i dont... their website is 'messed' up. If you look at the address bar in the browser, Some links take you to the duke-200-eu, while the others take u to the 'duke200' (i guess the 'indian' version) - and this happens on the same ktm india site >> KTM Ready to Race
                            Try clicking on the Duke 200 link(pic) on the bottom left of this home page and you will see what i saw under technical details and highlights. But still there are two diff specs (however minor) one showing 18.xx n the other 19kW

                            What the eyes see and the ears hear, the mind believes. <<quote from the movie 'Swordfish'

                            Comment


                            • Originally posted by aargee View Post
                              Want to rethink about your post?
                              again for some reason my latest post is not showing up.. just get a blank page when i click page 529 on this thread.
                              ok now coming to the point.. if you follow my links, you will see (not see) no power specs except under the second link which says 19kW blah blah...
                              now i figured out why you see certain things and i see certain different things !.. their website is 'messed' up (probably due to lot of 'cut/copy/paste/linking' stuff)
                              if you observer the address bar on the top, you will see 'duke-200-eu' and 'duke200' both of which show up thru different links on the ktm india homepage.
                              for eg: on the india homepage i.e. KTM Ready to Race click on the image at the bottom left (which says KTM 200 Duke
                              200 Duke is here! )
                              and then check the specs and highlights..

                              What the eyes see and the ears hear, the mind believes...

                              Comment


                              • Originally posted by Doga View Post
                                . Take your pick!! On a serious note this statement was not made to offend pulsar 200 NS wallahs. Performance wise there is very little to differentiate between the two machines, at least on paper.Now most of my friends and 'aam junta' don't get what a trellis frame or a USD or Fi is. So I always resorted to the 1.5 odd bhp difference as an explanation for the 30k+ extra I paid for the bike.
                                As far as my thinking goes. This flashing ECU thing...it might be done so that the bike is just under the rev
                                limiter, as for Duke 200 where the peak power is
                                just before the rev limit i.e 25hp @10000rpm !!!, so a lower max RPM in
                                top gear will be optimum. The idea is to use as
                                short of a gear as you can to maximize
                                acceleration while not limiting the top speed
                                by hitting the rev limiter or exceeding the
                                power band.
                                Code:
                                [URL]https://www.instagram.com/ankit_himalayas/[/URL]

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