# Assioma vs. Kickr Core

**URL:** <https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866>\
**Category:** Equipment\
**Created:** [February 10, 2021, 1:24pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866 "2021-02-10T13:24:08Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![bfrostieone](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/bfrostieone/32/13407_2.png) [@bfrostieone](https://www.trainerroad.com/forum/u/bfrostieone)\
**Post date:** [February 10, 2021, 1:24pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/1 "2021-02-10T13:24:08Z")

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Has anyone else compared the power output from Assoima Duo pedals vs. Wahoo Kickr Core? I recorded both on my last two rides and compared them with the DCRainmaker analyzer (ave. power of 175 on one ride was 175, and 240 for the other). The power numbers track very well, except the Kickr Core was about 10 watts higher throughout both rides. Just wondering if that is normal or if anyone else has seen this.

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**Author:** ![slowtrier](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@slowtrier](https://www.trainerroad.com/forum/u/slowtrier)\
**Post date:** [February 10, 2021, 2:32pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/2 "2021-02-10T14:32:47Z")

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I have just received a set of Assioma Duos and was planning on testing them against my Kickr Core. I will feedback to here with the result.

How did you record both power readings at once? I have a Bolt and a Garmin FR that will record power. Do I just need to have one power source linked to the Bolt and the other to the Garmin FR?

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**Author:** ![bfrostieone](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/bfrostieone/32/13407_2.png) [@bfrostieone](https://www.trainerroad.com/forum/u/bfrostieone)\
**Post date:** [February 10, 2021, 2:47pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/3 "2021-02-10T14:47:41Z")

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First ride I, recorded my TR workout (Shasta) with the Kickr Core (connected via bluetooth), while simultaneously recording the Assioma Duo power data for the ride on my Garmin Fenix 5 (connected via ant+).

Second ride, I recorded my TDZ Stage 8 Zwift ride with the Kickr Core (connected via ant+), while simultaneously recording the Assioma Duo power data for the ride on my Garmin Fenix 5 (connected via ant+).

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**Author:** ![Niall\_Quiggin](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/niall_quiggin/32/57490_2.png) [@Niall\_Quiggin](https://www.trainerroad.com/forum/u/Niall_Quiggin)\
**Post date:** [February 10, 2021, 3:32pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/4 "2021-02-10T15:32:09Z")

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I have the assioma unos. I find that they read about 10% higher than my kickr core.

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**Author:** ![jfranci3](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/jfranci3/32/12908_2.png) [@jfranci3](https://www.trainerroad.com/forum/u/jfranci3)\
**Post date:** [February 10, 2021, 3:35pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/5 "2021-02-10T15:35:22Z")

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Look at that analysis again. I’d bet the Assioma gets a much better read of your cadence. The Kickr Core, just guesses.

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**Author:** ![bfrostieone](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/bfrostieone/32/13407_2.png) [@bfrostieone](https://www.trainerroad.com/forum/u/bfrostieone)\
**Post date:** [February 10, 2021, 3:41pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/6 "2021-02-10T15:41:17Z")

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> [@Niall\_Quiggin](#):
>
> I have the assioma unos. I find that they read about 10% higher than my kickr core.

Thanks @Niall_Quiggin

10% seems like a large difference. But it makes more sense to me that your pedals read a higher power than the trainer. I would assume some power loss from the pedals to the Kickr Core. I asked the question because I thought it was weird when I noticed that my Kickr Core was reading higher than my pedals. 🤷‍♂️

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**Author:** ![Niall\_Quiggin](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/niall_quiggin/32/57490_2.png) [@Niall\_Quiggin](https://www.trainerroad.com/forum/u/Niall_Quiggin)\
**Post date:** [February 10, 2021, 4:00pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/7 "2021-02-10T16:00:34Z")

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I just adjust my assiomas so they read the same. Works fine for me.

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**Author:** ![HLaB](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/hlab/32/60448_2.png) [@HLaB](https://www.trainerroad.com/forum/u/HLaB)\
**Post date:** [February 10, 2021, 4:30pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/8 "2021-02-10T16:30:09Z")

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Use one source and forget about the other. I would suggest use the Assimoas and powermatch indoors and the Assimoas outdoors also as you can’t really use the kickr on an outdoor ride 👍

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**Author:** ![bfrostieone](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/bfrostieone/32/13407_2.png) [@bfrostieone](https://www.trainerroad.com/forum/u/bfrostieone)\
**Post date:** [February 10, 2021, 5:05pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/9 "2021-02-10T17:05:32Z")

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That’s a actually what I do. I have used power match since I got the pedals. I was just curious how close they were.

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**Author:** ![HLaB](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/hlab/32/60448_2.png) [@HLaB](https://www.trainerroad.com/forum/u/HLaB)\
**Post date:** [February 10, 2021, 5:29pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/10 "2021-02-10T17:29:46Z")

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I’ve a different trainer (an elite Suito) and I was curious at first too but realised it was pointless comparing them👍

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**Author:** ![rkoswald](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/rkoswald/32/28273_2.png) [@rkoswald](https://www.trainerroad.com/forum/u/rkoswald)\
**Post date:** [February 10, 2021, 6:34pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/11 "2021-02-10T18:34:32Z")

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I have the Duos and a 2018 Kickr. They consistently track within 1% across the power curve except very short durations (1-5 sec) depending on the workout, which is expected. Here’s the power curve from Monitor +1 this morning.

 ![image](https://global.discourse-cdn.com/trainerroad/original/3X/1/5/151b51c9344348e45b30f0a9ef8c9b83ff96c0b3.jpeg)

 ![image](https://global.discourse-cdn.com/trainerroad/original/3X/6/1/6139c4db29a58a897324737a44da35c5486b28e8.jpeg)

When was the last time you did a spin down on the Kickr or calibrated the Assiomas? I spin down the Kickr on the weekend, make sure it continues to track the Assiomas, then calibrate the pedals mid week, and ensure they continue to track. Repeat weekly.

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**Author:** ![bfrostieone](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/bfrostieone/32/13407_2.png) [@bfrostieone](https://www.trainerroad.com/forum/u/bfrostieone)\
**Post date:** [February 10, 2021, 7:23pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/12 "2021-02-10T19:23:32Z")

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I calibrate the pedals before each ride and I had performed a spin down over the weekend.

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**Author:** ![Ridill](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/ridill/32/16331_2.png) [@Ridill](https://www.trainerroad.com/forum/u/Ridill)\
**Post date:** [February 12, 2021, 10:28am UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/13 "2021-02-12T10:28:45Z")

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My Core Reads about 7W higher than my Assioma Duo, and the Kickr Bike reads 3W lower den the Assioma Duo. Thats on a Ramp Test and on different rides dual recordings simultaneously

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**Author:** ![Ridill](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/ridill/32/16331_2.png) [@Ridill](https://www.trainerroad.com/forum/u/Ridill)\
**Post date:** [February 12, 2021, 10:30am UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/14 "2021-02-12T10:30:05Z")

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Power Smoothing off on the kickr not sure if that makes a difference or if it is just Visual

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**Author:** ![rkoswald](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/rkoswald/32/28273_2.png) [@rkoswald](https://www.trainerroad.com/forum/u/rkoswald)\
**Post date:** [February 12, 2021, 2:30pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/15 "2021-02-12T14:30:59Z")

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Kickr Power Smoothing on or off does not change how the trainer responds in any mode (e.g. sim, erg, resistance, or standard). However, it does change the data that gets reported to the app / head unit and may hinder your ability to compare to a second power source. I used to really like seeing the ultra smooth lines when Power Smoothing as enabled on the Kickr. Now that I have power pedals, I prefer Power Smoothing off.

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**Author:** ![KRL](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/krl/32/53386_2.png) [@KRL](https://www.trainerroad.com/forum/u/KRL)\
**Post date:** [February 12, 2021, 2:51pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/16 "2021-02-12T14:51:26Z")

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I have a kickr core and assioma duo pedals too. I’ve noticed temperature seems to have an impact on how close they read to each other.

My cave can get quite cold and is sometimes 0 - 2 C. At these lower temperatures the kickr tends to read about 10w or so higher than the assioma’s. Not sure if its the kickr over reading or the assioma’s under reading due to the cold temperature.

Once the temperature gets into the 10-20 C range they read much more closely together.

For reference I calibrate my Assioma’s with Garmin HU before every ride and the kickr core gets a spin down calibrations once per week.

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**Author:** ![Ridill](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/ridill/32/16331_2.png) [@Ridill](https://www.trainerroad.com/forum/u/Ridill)\
**Post date:** [February 12, 2021, 2:53pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/17 "2021-02-12T14:53:13Z")

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When you do a Ramptest in TR once with Smooting on and once off exactly the same test.Will you get the same result?

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**Author:** ![Ivanecky](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/ivanecky/32/20890_2.png) [@Ivanecky](https://www.trainerroad.com/forum/u/Ivanecky)\
**Post date:** [February 12, 2021, 2:59pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/18 "2021-02-12T14:59:14Z")

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My Kickr Core typically is ~ 10 watts higher than the Assioma Duos but I normally do everything using the Duos since they can go outdoors too.

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**Author:** ![mrpedro](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/mrpedro/32/59752_2.png) [@mrpedro](https://www.trainerroad.com/forum/u/mrpedro)\
**Post date:** [February 12, 2021, 3:10pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/19 "2021-02-12T15:10:41Z")

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For power in the range 200W-250W I have typically seen the Kickr Core showing 10W-15W higher than the Assioma Duo’s.

You would normally expect the Trainer to report ~10W lower because of losses in the chain.

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**Author:** ![Ridill](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/ridill/32/16331_2.png) [@Ridill](https://www.trainerroad.com/forum/u/Ridill)\
**Post date:** [February 12, 2021, 3:11pm UTC](https://www.trainerroad.com/forum/t/assioma-vs-kickr-core/52866/20 "2021-02-12T15:11:47Z")

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Exactly our Drivetrain has gains not losses 😉

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