Re: KTM 200 Duke

I'm back to my stock 39/14 ratio. Guess what? 39/13 was all wrong! With 13T, the bike simply ate up the revs for breakfast and only FELT to accelerate faster. Now the bike, though feels calmer, is definitely faster. Probably 41/14 offers the best possible balance between acceleration and top speed. With me planning to get my bike modded very soon, I'm guessing all that extra power needs tall gearing so 39/14 for now.
For the sake of experimentation and helping out a few others here, I enquired at the Hero ASC. They said Karizma's 40T has 4 mounting points so it can't be used on the NS but can be used on the duke. I searched for 41T at a few places and learnt that 41T .520 pitch rear sprocket has never been made

Re: KTM 200 Duke

But then, it will alter the bikes power delivery, and would feel similar to what 390 felt in td to many 200 riders including me, wont it?

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Re: KTM 200 Duke

Yeah, OK... Makes sense.
So, what do you think, if 40T makes more sense than 42T for Duke? I'm now on 43T, which is even shorter than 39/13!
Does your bike now feel little too tall with stock gearing?

If my chain needs replacement I'll go soon to buy a new set, and then either get Karizma's 40T or fit the stock 42T...

Someone recently posted that Suzuki 150 from first lot has 41T sprocket. But not sure if it would match...

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OK, after watching your video again I think I'll go for 40T rear sprocket.

It looks like it has enough juice to still accelerate quickly. And with Kiirus ECU it should accelerate even faster...

Theoretically, Duke with 40T sprocket and with Kiirus ECU and without speed limiter should have a top end speed at 166 kmh.
I'd be OK with 150 kmh, no need for more than that. For now...

Re: KTM 200 Duke

@katoom your right about the engine not producing more torque but once you reach a peak power rpm n continue for another 1-2k rpm you will be able to use the peak power for longer duration which will help reaching better speeds IMO

@Aditya N Bharadwaj 39/13 is too short bro and your testing proved the same...

the power delivery will act more linear with taller sprocket but not all that bad like the 390 which i test rode as well..390 the primary gearing itself is to high..

my choice would be buying the 42T entire kit try it n then also try the 40T on the stock chain n 14T .. this would be my approach..


[MENTION=18379]splus[/MENTION], theoretically your right and thats the main reason i suggested the 40T with the remap eventually where i will be landing in a few days. Remap is on the cards but the only reason i am holding off is to take it stage by stage and it will give me a good sense as to how the engine responds to each change. My target is a quick bike which can hit 160kph when needed.

Re: KTM 200 Duke

One more reason to get a Kiirus ECU...

I guess I'll try both 42T and 40T when I change the chain, and will see what is better.

But yes, quite a few times it came to my mind that D200 gearing is just too short (at least with 43T), and that even the acceleration is slower because of that. As [MENTION=55394]Aditya N Bharadwaj[/MENTION] said, it just FEELS faster, but little taller gearing is faster. Not sure about 42T vs 40T...

As I said, if a bike is more powerful then taller gearing will give faster acceleration. Of course, when I say tall I don't mean "D390 tall". They might have easily put the D690 gearing into D390... Just as they put the same gears from D125 into D200.

Re: KTM 200 Duke

oh by the way i tried to figure out the speed sensor cable today and gave up man its like one maze inside it will take the whole bike to be striped off and check each wire and where it leads. In that way if someone has found a solution it will be better to use it than to re-invent the wheel. If any one of you have the wiring diagram of the D200 it wil help me pls do share it

Re: KTM 200 Duke

Did you try and see if that socket can be taken apart and individual wires taken out? And then put together with one wire unplugged and the rest connected. And test if there's a light or not.

I think all it needs is to disconnect ONE single wire inside that socket, the one which is the speed limiter. The others are light and blinkers. We just need to know which wire is which.
If we know which wire is the limiter a simple little cut with pliers would be more than sufficient.

Re: KTM 200 Duke

I found a website, which has an interface for converting power generated to top speed of a cycle!

Plugged in the data of a stock duke 200 and the result is:

Power (KW) : 18.642
Top Speed (km/hr): 161.19

Of course, I kept the other factors constant, weight of bike at 125 kg and weight of rider at 75 kg. You guys are welcome to try it out!

An interactive, model-based calculator of cycling power vs. speed

Re: KTM 200 Duke

Heheheh this is exactly what i wanted to try so removed the front headlight and tried to trace the wire and gave up coz the wire colours changed from what they were near the headlight to what came to be connected to the CDI. basically i was short of time today will need to sit and trace this out some day peacefully at home when i have no work from office
But like what you said is what we need to do trace it one wire by one wire. Its a worth try i would say.

Re: KTM 200 Duke

Yeah, instead of tracing each wire in a forest of wires it might be easier to just stick to that socket itself, and to try to take it apart.
Try to disconnect only one wire, and see if the lights and blinkers work or not.
If only one wire is disconnected while lights and blinkers are working then that might be it! The bad guy!!!

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Looks about right!

Re: KTM 200 Duke

Mileage check.
Petrol filled 500 bucks.(6.49351 liters)
Distance travelled 199.3kms
Mileage 30.7kmpl
Travel was only in city, mostly for 4-5 kms, with occasional t.w.o. Very happy

Ive changed the clutch cable and its setting from half clutch to full clutch.previously it gave 26-28.mileage has improved.
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Re: KTM 200 Duke

Yea need to try the trail and error .. if in case i find it i ll share it, or if in case any of you find it please do share the results and which wire to disconnect

Re: KTM 200 Duke

Someone with a multimeter can do it.not much of a hassle.

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Re: KTM 200 Duke

Just open the headlight and you ll know what i am talking about, today i was ready with a multimeter and wanted to fig out which is that wire i need to disconnect. But the issue is its interconnected to a lot of sockets which makes it difficult. Today was a half hearted try will surely try again on a peaceful day and see what happens

Re: KTM 200 Duke

I feel philips extreme vision is not very appropriate for guys who ride a lot in city as last week i installed extreme vision on my duke and i immediately realized that extreme visions beam n visibility is much better than stock duke 200 bulbs.Extreme vision is of great use on highways where there is no street light and lights of other vehicles are also less, but in city where there is street light n light of other vehicles the yellow light of extreme vision gets sumwat lost and is not very effective. I feel the bluish-whitish light will do a good job in city as ystd night when i was returning back from office on my duke there was a honda unicorn which was moving exactly next to me and it had that typical whitish/bluish light n i realized that the visibility which were offered by his lights were much more than mine. So i feel those bluish/whitish lights are more practical for our daily night rides. So i am planning to install the philips diamond vision 2moro, am i doing the right thing???? pleaze guys do reply.

Posted by SPLUS- I know many people like bluish lights,but i wont agree the actual light is stronger. In fact,yes the light is stronger but the visibility is not.You can get one of those bluish led flashlights (not white like LED light on smartphones, but bluish) and compare them with warm white ones. The bluish light will be blinding if you point it to your eyes, it's a very strong light beam. It feels like a much stronger "light source". However, what you will be able to see in front of your eyes when you compare the two, is that the warm white will give better visibility to our eyes, you will be able to see more than with bluish light.The reason is simple - our eyes are used to see best with sunlight, which is warm white. If we, the humanity, spend next several hundreds/thousands of years mostly in neon lights environment then our genes and eyes will get used to that light and work best with bluish light.However, at the moment, it's for a very good reason why all stock lights come at that temperature.In short - bluish light will feel stronger, and maybe it is, but the visibility it gives is actually weaker than a warm white light.

Posted by KRASHNBURN-Color temperature is measured in Kelvin.The easiest way of comparing cheap imported lights (apart from the build quality) is the color temperature. Anything above 5000K will only produce glare, not clarity. Keep in mind on a sunny day the color temperature is about 4300K. Because Xenon gas is naturally blue it can be expensive to bring it back to a natural white light which is about 4300K. That’s why the cheaper imported lights are anything from 6000K up to a ridiculous 7000K.Remember ... Clarity not Glare

So guys what should i exactly go for????? would philips diamond vision be the best option as it produces white light at 5000k and is also of the same voltage rating as the stock duke of 12v 60/55w,so that way even dukes warranty wont get void or should i go for something more powerful lyk HID n if yes then where can i exactly source it from in mumbai. HID is super kool with me but plz i dont want that angel n devil lights as i feel they look super ugly on duke.