Power Meter for Karoo 2 and Di2 Ultegra

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    Bob L.

    An innocent question from another Karoo 2 (still with the May 2022 firmware that supports Di2) / Ultegra Di2 owner but a total noob on power meters. What's the requirement for Di2 compatibility? In other words, as I understood it there's nothing stopping anyone with a mechanical groupset from adding a power meter so what technical twist does electronic shifting add to the mix? I was just looking at the Gen 3 Stages cranks online yesterday and thinking they might be the way to go.

    Thanks for any clarification you can offer!

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    David Wilson

    I use 4iiii left side crank only powemeter, works absolutely fine on K2. It works completely independently of Di2, separate sensor.

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    Jim C

    Assioma Duo for me and as per comment above no incompatibility.

    First I've heard about Stages incompatibility too, there's been no announcement on that 🤦

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    Edu

    I don't see the relation between stages, shimano and K2... I mean, all the powermeters works with K2 using ANT+ or BT, depending on the GPS brand probably you just see the ant+ or bt id instead of the brand translation, but the use of the protocols above are compatible with K2

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    Tim Bennett

    Thank you everyone for the responses. First time out, my Stages power meter was not showing up on K2. K2 just said "searching" and was not finding the sensor. I therefore assumed that Stages, like Di2, was no longer compatible. I will check or try again, given your comments. Hope you're all right!

     

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    Anna Ronkainen

    Yeah, it’s something else. My top three guesses would be an empty battery, the ANT+/Bluetooth toggles are somehow switched off on your Karoo, or (if you are using Bluetooth) the PM already being connected to a different device. Maybe try to check if you can see the Stages with a different head unit or a smartphone?

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    Brandon Babcock

    I purchased and installed the Favero Assioma Uno last week (pedal-based PM). As stated above in this thread, the K2 picked up the transmission seamlessly - zero issues at all. 
    I'm a bit surprised that the Stages stopped working - I agree with the other commenters, I don't believe this and the Di2 are related. From my understanding, the only thing Shimano has retracted was the Di2 functionality with the K2. 

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    volker.huhs

    https://github.com/valterc/ki2
    Here is Version how to install DI2 Support as side load

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    Anna Ronkainen

    The Ki2 package might help with other Di2 woes but probably not this one, since nothing was done about power meter support in the first place when the integration was dropped. (My first guess is still an empty battery...)

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