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  • These male dongles fit 1050-1290 models.
  • These female style dongles fit older 990 models.
  • Many people ask us the differences between Fueling Dongles only, and a full remap with a Powercommander V. This graphic will help.
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Rottweiler Fueling Dongles (Pair)


Product Description


The Rottweiler Performance 'Fueling Dongles' are an effective and simple method to improving the fueling mixture of any fuel injected KTM by allowing the stock ECU to deliver a proper mixture at low to mid RPMs. By replacing the stock narrow band O2 plugs with these simple to install dongles, the Rottweiler Fueling Dongles feed the stock ECU a pre set signal that substantially smooths out the lower end power delivery reducing the jerky transition between the extremely lean low RPM mapping and the open loop upper end mapping. Overall average air fuel ratios also tend to richen up by about .5 to 1 point as well allowing the user an inexpensive option to 'bump up' the richness of their fuel delivery if the cost of a Powercommander is not currently an option for them. 

How do they work? It's actually quite simple. The stock ECU is set to lean out the fuel delivery to a very lean 14.7 air fuel ratio (AFR) under 5500 RPM and 20% throttle. Once the engine has reached a sufficient warm up the ECU 'listens' to the stock narrow band O2 sensors and looks for a particular signal to keep the bike in that lean condition. This causes heat issues from extremely hot header pipes, makes the motorcycle jerky at low RPMs and reduces power. The Rottweiler Fueling Dongles send a return signal to the stock ECU that keeps the low end fueling at a much better running 13.8 +/-. A mixture that translates into an overall better running motorcycle.

Note: When running our Rottweiler Fueling Dongles, you have the option to remove your stock O2 sensors from the exhaust header F+R. Click below for O2 bung plug options.



Product Reviews

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Showing reviews 1-40 of 91 | Next

  1. Had to do it 5 Star Review

    Posted by on 2nd Mar 2023

    Supper quick delivery. Once fixed the problem with throttle

  2. plug and play 5 Star Review

    Posted by on 23rd Dec 2022

    its just plug and play perfect no engine light

  3. JUST DO IT 5 Star Review

    Posted by on 17th Dec 2022

    Best mod you can get for your bike, easy install and very noticable change.
    fitted on SMR 990 2012, AKRA SLIPONS, rottweiler intake sysyem, RC8 STACK.

  4. great product! 5 Star Review

    Posted by on 10th Oct 2022

    once it was shipped, it got quick. the install was easy ahd the effects on the throttle control were outstanding. thanks!

  5. Amazing 990 Super Duke 5 Star Review

    Posted by on 9th Nov 2021

    I am blown away with how much smoother and powerful my 990 is. The hesitancy, lean bog, and lurching is gone. You can spin down the road at 3500 with no surging. The bike responds instantly to rollons or whacking it open. Blow away and VERY happy. No scientific way to measure fuel economy because I ride it differently now,.

  6. works great 5 Star Review

    Posted by on 4th Apr 2021

    Easy to fit, and very noticeble in lower rpms. No more jerky throttle and i can use higher gear with lower RPM withouth problem.

  7. A Quality Solution from good people 5 Star Review

    Posted by on 28th Feb 2021

    Arrived quickly, installation was as advertised and quality was very good. Fair value.

  8. These Fuel Dongles are Awesome! 5 Star Review

    Posted by on 14th Feb 2021

    After ordering the fuel dongles, they arrived promptly and were easy to install. I’m not a mechanic, so I was hesitant to do the job myself. The process was much easier than expected. After installation, I was extremely happy with the results. The fuel dongles really woke the bike up. It’s especially noticeable at lower rpms, where power is much more smoothly delivered. I would highly recommend this product.

  9. KTM GT Fueling Dongles 5 Star Review

    Posted by on 7th Feb 2021

    Two weeks ago I bought an ‘18 GT with 14,000km rode it home 2500km and it ran terrible at low speeds. Today I received and installed the fuel dongles. Went out and instantly the bike runs nice and smooth, no more bucking a jerking, now I’m able to keep a steady throttle and speed.

  10. Don't fear removing the tank! 5 Star Review

    Posted by on 25th Jan 2021

    The tank is really not that intimidating to remove and re-install. The fuel dongles definitely do as promised. They remove the lumpiness and surging out of low rev situations. I have installed them on both my bikes and the instructions are straight forward and easy to follow

  11. Fuel Dongles 5 Star Review

    Posted by on 2nd Dec 2020

    Noticeable difference on cold start up. Runs smoother. Idles better (less hiccups). Below 5500 rpm is much smoother and the power increase while it may be small, its something Ive taken notice of. I havent noticed any fuel mileage loss, everything appears to be better than stock. Throttle response is top notch.

  12. Helped with smother idle and lower RPM fueling 5 Star Review

    Posted by on 15th Sep 2020

    Installed these into my 2020 KTM 1290 SDGT as I found the bike had less than ideal lower RPM fuel delivery and even roughness during idle and start up. As mentioned some bike specific installation instructions would be nice but if you are comfortable working on your own bike and have the tools for the job you will be fine. The bike certainly starts and idles better and has much improved fueling below 5500 RPM to the point that I can actually use 6th gear on the highway without it chugging as it did stock. Well worth the cost and time to install the dongles, highly recommended.

  13. Work as advertised 5 Star Review

    Posted by on 14th Sep 2020

    Great product, easy to install, smooth out the fuel delivery!!

  14. Smoother from idle up 5 Star Review

    Posted by on 6th Jul 2020

    Installed these on my 2020 Superduke GT. I always had issues with the idle being poor, even cold start. Let alone the heat and vibration from the lean condition. These fixed all of that. Only thing is could be better installation instructions, but you can figure this out on your own. All I had to do was raise the tank up a bit the connector was right under the back of the tank. Probably could do this in 20 min next time. If you are thinking of doing this... don't think just DO IT!!!!

  15. Do it! 5 Star Review

    Posted by on 27th May 2020

    Installed on my 2019 1090 Adventure. Completely changes how the bike behaves below 4K rpm. Much smoother, more enjoyable low rpm cruising.

  16. Great it! 5 Star Review

    Posted by on 15th Feb 2020

    2015 1190ADV: I just installed these dongles along w/ the stainless steel O2 plugs. I should have done this sooner! The low speed throttle response is noticeably smoother. I was very pleased after only 2 minutes into my post-maintenance test ride. The Rottweiler tank removal video was an excellent aid for this modification. Customer service is great- Thanks to all at Rottweiler!

  17. perfect 5 Star Review

    Posted by on 24th Jan 2020

    Los coloqué sin problemas , muy fácil de hacerlo

  18. Performance Right From Off Idle 5 Star Review

    Posted by on 4th Nov 2019

    Very simple modification for my 1090 that returns great rewards. Makes acceleration clean and immediate off idle. Easiest to install with tank removed.

  19. great addition.... 5 Star Review

    Posted by on 27th Oct 2019

    Works at stated... makes throttle a little less jerky, which is great when trying to roll into throttle on a long bender road.. Exactly why i got them! installed these and balancing the cylinders made a world of difference.

  20. Best money spent on my 1190 5 Star Review

    Posted by on 24th Oct 2019

    These dongles have turned the engine into a smooth tractor like torque monster it should have been from the factory! Able to cruise smoothly in a higher gear at lower RPM easily makes up for any extra fuel consumption other people worry about. 6th gear is now usable without going to jail because this product corrects the under 5000 RPM lean fueling problem. Amazing engine performance upgrade for peanuts.I noticed the difference immediately. Go ahead, experience what your engine can really do. Seriously

  21. ight and day fifference 5 Star Review

    Posted by on 22nd Oct 2019

    Amazing difference below 5 grand .rider to work 40 minutes in all 60 mph zone . Always have left bike in 5th because in 6th was right about 5 grand and was jerky. Now 6th is how it should have been. THE best 50 bucks i have ever spent on a bike.

  22. Just buy them. 5 Star Review

    Posted by on 19th Sep 2019

    Just replaced them. From the second that I took off I could feel the difference. It makes you realized your engine was taking moment to wind up before it gave you the real power. A smoother delivery over all.

  23. love it 5 Star Review

    Posted by on 3rd Jul 2019

    Works perfekt on my 1290 Im impressed!
    I Will tell al my friends here in sweden

  24. amazing! 5 Star Review

    Posted by on 13th Jun 2019

    Shocked at how much difference these made. Both to the smooth revs, throttle response and lack of jerkiness, and even shifting?!

    Best and cheapest upgrade yet!

  25. 1090R fuel dongle. 5 Star Review

    Posted by on 28th May 2019

    As always Rottweiler has made a great product for the KTM 1090R, works exactly as they said. I live at 7000 feet and it really cleans up the low end of the big. Runs smoother down low and gives the more power.
    For $49 dollars it’s a no brainer.

  26. They really work! 5 Star Review

    Posted by on 7th Apr 2019

    Just installed these on my '19 1090R and impressed with how they smooth out throttle response and acceleration. A very solid mod at a reasonable price. Great work Rottweiler Performance!

  27. O2Dongles improve response 4 Star Review

    Posted by on 27th Mar 2019

    Low-rpm running is improved and throttle response is smoother. Makes the tall 6th gear more usable and short-shifting without jerkiness or hesitation possible.

  28. plug and play-great results 5 Star Review

    Posted by on 3rd Mar 2019

    These were very easy to install and made an immediate, noticeable impact on low end fueling for my 1290 superduke. This is the only mod I have and I wish I did it when I bought the bike !

  29. Dongles Rule... 4 Star Review

    Posted by on 15th Oct 2018

    So was I just itching for a minor upgrade or just wanting another quality Rottweiler performance product?or, was I looking to rid my motorcycle of those unsightly O2 sensors? What I got was a cost effective, plug and play bit of smoothness added to my Superduke. My seat of the pants experience tells me I now have a smoother, more tractable lower RPM machine. My fuel economy computer makes it a fact I lost almost 1MPG with my spirited street riding style and lastly my smiling face let’s me know that coupled with the ABS/TC dongle I now have one hell of an ‘any gear, any RPM’ wheelie monster. Recommend? Yes! Why? Delivers on its advertised purpose.

  30. Fuel Dongles 4 Star Review

    Posted by on 31st Aug 2018

    Good product, easy to install, and I'm sure they work as advertised but since I don't have the "Princes and the Pea" back side I couldn't tell 100% that anything changed but at idle it did seem a little fatter more so than previously.

  31. 1290 SDGT FUELING DONGLES 5 Star Review

    Posted by on 29th Jul 2018

    Smooths throttle response right out. Highly recommend. Not sure why you just don’t include the block off plugs and maybe manufacture a higher quality material of simular metals for the plugs. Tank removal is fun just a little tip. Glue the rubber crommets onto the tank and leave the right side nut plate off until tank is back into position. Makes your life easier.

  32. Money well spent. 5 Star Review

    Posted by on 28th Jul 2018

    These dongels work! As the description out lined 100% .
    Big change for small price.
    I didn't have a problem with how my SD9990R was but now its so smooth it makes riding the tighter slower sections much easier.

  33. High quality, easy installation 5 Star Review

    Posted by on 26th Jul 2018

    High quality, just click these in and enjoy your big twin! Absolutely 5 stars.

  34. worth every penny 5 Star Review

    Posted by on 11th Jul 2018

    JUST GET IN filtering with much more confidence and the pull from 6th gear leaves a big smile on my face...

  35. BUY THIS 5 Star Review

    Posted by on 7th Jul 2018

    These dongles transform the lower rpm range into smooth useable power. No bucking or jerking in slow traffic or parking lots. They make 6th gear under 80mph as it should be.
    Can my Super Duke get any better?

  36. Smooth 5 Star Review

    Posted by on 24th Jun 2018

    2017 KTM 1290 r. Much smoother at lower rpm. Most notably when idling through slow traffic. No longer feels like its going to rattle my teeth loose in 6th gear. No change in gas mileage after 2000 miles

  37. 990 SMT 5 Star Review

    Posted by on 17th Jun 2018

    2010 990 SMT, decat, Arrow pipes,block off plates, tune ecu. Great bike but low end fueling was still not right.

    Dongles fixed that, much better to ride slowly and in traffic. Great fix for the money. Easy install if you take the tank off. No downside that I can determine, mileage seems about the same.

  38. A different bike ! 5 Star Review

    Posted by on 16th Jun 2018

    As most/if not all say, these little fellas work great. The idle is smother, more consistent and the motor also runs cooler in the sub 5000 rpm range. Well worth the $40 price tag.

  39. Good solution to throttle response for 1290 super adventure T 5 Star Review

    Posted by on 23rd May 2018

    Fast shipping, good product it does what is advertised whit out any effect on the hi rpm range. Good job!
    But, you have to take of the gas tank for one dongle.

  40. 990 adv fuel dongle 5 Star Review

    Posted by on 21st May 2018

    Why didn't I buy these sooner? My bike runs way better at low rpm's! I can actually use 6th gear without the motor feeling like it's struggling.

Showing reviews 1-40 of 91 | Next

Shipping Weight:
0.10 LBS
Calculated at checkout