AT LAST!

If you’re a YZF-R125 gen2 (2014-2018) or gen3 (2019-2020) owner and you’ve been wanting to make your bike faster, then you’re probably aware that there have basically been almost *no* usable ECU tuning options available recently.

Whist the gen1 (2008-2013) bikes have enjoyed a range of devices, (some better than others) there has been very little support for the later models, which quite frankly, sucks.

Well that is about to change, in a big way.

Finally there is a set of ECU tuning modules which support gen 1 (2008-2013), gen 2 (2014-2018), and gen 3 (2020-2021), with a feature set which blows the competition (such that is is) out of the water.

  • Fuel adjustment – fill in that lean midrange so you get more torque across the whole rev range
  • RPM limit adjustment 🤔
  • Ignition/spark timing adjustment 🤔🤔
  • VVA adjustment (gen3 only)
  • Immobiliser
  • Tune over bluetooth from an app on your android phone while the engine is running (no more laptops required)

*doesn’t work on IOS, you will need an android phone or tablet.

Why Tuneboss (2)

  • Drop in ECU replacement so:
    • No wiring or splicing of wires like with a piggyback controller
    • Super-easy, 30-min install
    • Easily “Undo-able” (e.g. if you sell the bike) or transferrable to another bike of the same generation
    • No invalidating your warranty
    • *complete* control over all aspects of your engine: fuel, ignition, rpm limit, cold-start compensation, and on the 2019, also: injector angle, vva-activation
    • make adjustments while the engine is running, over bluetooth from your android phone or tablet (sorry, no IOS).
    • full data logging, so you can review your engine data, also via the phone app

In addition:

  • Legal to ride on a CBT/provisional license (unlike a big-bore kit)*
  • Actual top speed increase without having to mess with changing cylinders or engine internals, or changing the running characteristics of the engine (as a big-bore kit does).
  • No need to change gearing, so no loss of acceleration (like you would have with a 15t front sprocket)
  • Distributed from within UK and EU so no “surprise” import duties/taxes and easy returns/replacement if there is a problem.
  • UK & EU after-sales support by NorthCust

*you may still need to inform your insurer if you replace the ECU, check your policy documentation

Oh and just for awesomeness (I *think*) we’re including a quickshift kit with the first 10 orders.



Just to be clear, THIS IS NOT ON SALE YET, but we have the first development units in the country and running on the UK-spec R125, and we are building a map suitable for the UK/EU spec R125. Once that’s done and the devices are ready for sale, they will be for sale from this site.

So maybe add your email address to the list below to be notified first when the devices are available for sale. Folks on the list will be contacted before anyone else and on a first come-first-served basis.

Gen3 / 2019-2021 are the first up!

Not for any particular rhyme or reason, this is just how it worked out, but the first batch will be for Gen3 bikes (2019-2021). Afaik there’s currently zero other tuning options for the gen3 so this should be a nice treat for gen3 owners. Finally make the most of that shiny exhaust 🙂

Register your interest:

Click the “LEARN MORE” link will take you to a page and let you enter an email address and the year of your bike and then you’ll get notified once we have a device available for sale, for your bike’s generation.

OR

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