Favero Assioma Users

Equipment
983

Yep, this was in ERG mode (not using Powermatch). I also wondered that about the Neo, however (a) I wasn’t seeing this with these pedals a week or two ago, and (b) I didn’t see it with my BePro pedals.

I have DUO pedals. Interpreting the L/R is a bit tricky. It looks like maybe the right pedal is more correlated with the fluctuations, but I’m not sure whether that is real.

(I’ve been dual recording like this because the pedals are new so I wanted to test them. I’ve often had slight doubts about my old BePros - sometimes they agreed pretty well with my Neo (and a Powertap hub) but other times they were not very convincing at all (against either other source on different occasions). They also mostly showed a fairly significant L/R imbalance (which is plausible due to an old leg injury), which I wanted to verify with another source. The Assiomas do seem to agree with the BePros on the imbalance point, so I am a bit wonky (typically around 45-55). I was hoping that the Assiomas would match the Neo nicely - sometimes they do, sometimes not so much. These two example workouts are very good overall, but some others have been up to 7% out. Reinstalling seems to make more difference than I would expect, but maybe I’ve been expecting too much (I’ve been doing them up tight and ‘calibrating’ before each ride, but not bothering with doing some sprints etc to make sure that they’re ‘settled in’.)

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984

Double-check you’re on the latest Favor Assioma Firmware (notably, the one just released a week or two ago). :slight_smile:

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985

Thanks - both pedals are definitely on the latest version (4.80).

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988

Only thing that looks strange with that is I’ve never seen a torque effectiveness as high as what your left pedal is reporting.

Hope Favero get you sorted.

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991

I think you’ve just got an imbalance that the assiomas are picking up on and when you are climbing or standing, either the change in position or requirement to apply pedal pressure more evenly through the power phase to overcome gravity, whatever, it disappears. This could be fit related like seat height or setback or cleat placement but whatever it is, is causing you to have a dead spot in the stroke on the right leg on the flats. Understanding that you’ve had other power meters not saying the same but some haven’t been true dual sided so shouldn’t even be considered in comparing balance. If all the tech support reviews and static weight test say they are fine, I’d move on to assessing the legs independently doing single leg work and recording that to see what it says if anything or if right leg fatigues earlier, or even unilateral strength exercises to see if it manifests there.

992

Here is a screenshot from a test of mine a while ago - comparing my assiomas to my H3.
I do seem to have an imbalance - the overall averages are without about 2% of each other. As shown here, you can see some swings in LR balance of fairly large timescales - many 10s of seconds up to a couple of minutes. I have regularly seen these types of variances in the data when I have looked at it. If you look at my cool down, you will see my LR balance swap polarity.

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995

I’m not trying to be dismissive. I spent many weeks dealing with a faulty kickr, and was told countless times that it was ‘normal’. A friend had a Neo 2 that was way off - at least as bad as yours, and it took him 6+ months for them to acknowledge that. I have spent way to much time time tracking down power mismatches, and have looked at a fair number of my files looking for issues.
For me, I have come to the conclusion that my balance varies quite a bit, as this same type of pattern of what I would consider long (ie 10s of seconds) oscillations in balance are also seen on my powertap P1 pedals. I think this points to this being a physiological thing with me, but it still could be a technology problem/design error/etc. in both the P1 pedals and the Assiomas.
The colors make it hard to see, but here is the LR data from a steady trainer session with the P1s, and the LR balance varies a lot, and occasionally swaps polarity.
The data that you are seeing from your pedals could be a technology thing, and if I am understanding the graphs you have posted you are also seeing and oscillation in total power, not just L/R. For me the total power lined up pretty well, it was mostly the L/R that varied more than I expected.
One thing that I have consistently seen is that ‘power discrepencies’ are a huge pain to track down with any certainty, and the trainer/PM companies are reluctant to take user-generated data on theses. There are at least several instances in this thread of Favero taking back problematic pedals quickly, as they were able to verify a fault with their telemetry data.

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996

No worries at all. I’m simply providing another way to look at it given that you’ve done the legwork to confirm the data you are seeing is valid (or at least according to what you are being told and by your own static weight test). 91% torque effectiveness is higher but in the range of what at least cycling analytics says is “normal”. All I’m saying is it could be as simple as the left leg more actively engaging throughout the full pedal stroke/lifting up on the flats. At the end of the day, you may very well be right that the right side spindle is wrong. Oh the joys of power meters…

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997

Not sure if I’ve missed something here but in this GCN video, they say they have power pedals on the bike, and show this shot:

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Are these the mythical pod-less Assiomas? Early access for review perhaps?

999

:smiling_face_with_tear: My keen eye at it again…

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1000

I have also problems with my Favero pedals…

And im a bit dissapointed from their quality control…

A bit of personal History and Favero…

Back in 2018 i bought my first pair… All good except then i had battery discharging mid ride so contacted Favero… After few months we agreed to send me new spindles…

And new frustrations regarding shipping. Since there was battery included in the spindles only DHL Express as option which was super expensive with their local broker fees (this is not Favero problem and they were very very friendly and supportive). So they send them to my friend in Germany, and he bring me here (i live in non EU Country)

At the end, i was super satisfied… This made me to buy new Pedal Bodies for the new spindles, and also another Pair of Favero (i have three bikes which i ride often so my idea was to end with every bike own pair of Favero Duo)…

Then last year i bought another pair of Favero (now all of this three bikes has own pair)… Perfect…

Until in October 2021 one of the replacement Spindles started switching off mid ride :frowning: (on this replacement spindles i have max 7500km)

I have thread about it… Favero Assioma Problem

So i thought bad luck and decide to get new pair as a replacement (because of shipping problems i had to send them again to friend in Germany, still waiting to bring them to me)

In meanwhile i realize last pair i bought in 2021 have problem with power beeing totaly off… (on this i have max 3500km)

Like 7% lower vs my other pairs :frowning: Also strange left-right balance discrepance… While my left/right on other pairs are 50:50, 51:49 or similar, on this problematic pair balance is 55:45…

I done static weight test, and seem that this test is ok, dont show big weighting discrepance, but power reading is totaly off…

So i tried to adjust the power trought app (putting like about +4% in power settings), and i got pretty similar power curve to the rest (im benchmarking against Direto XR-T and other Favero Pairs)

But also even more strange left/right disbalance (i got 59:41 on last ride, reset the lap calibrated then ended with 54:46)

So in my possesion and usage i had 4 pairs (not counted the last pair which i still wait to arrive)… And on three pairs of them there was a problem :frowning: Pretty bad luck, or quality control…

Last time i ended satisfied from Favero support, but still dont expect to have this problem with almost every pair i own :frowning: and especially problems i have with shipping them (because of batteries in the pedals i guess)

Anyway, im doing more detailed tests now before i contact Favero Support, and maybe i’ll go this time with retailer support where i bought them, since i have very good experience with them and for me best online shop (bike24).

So will see what will end… But i feel a bit frustrated i must admit :slight_smile: I expected more reliability and quality

1002

Hi,

Anybody else had similar Assioma Duo power dropouts? Smart trainer on erg, Assioma was just reading power and transmitting to Edge 530 with ANT+. Same story if I use powermatch. It does not happen everytime and gets better towards end of ride. Any ideas, can I somehow reset them?

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1004

I used to have this with my previous computer over bluetooth. I switched to my iPad for trainerroad in an effort to have a lower total number of bluetooth devices (iPad- Assioma, HR, KICKR; Mac- Trackpad, Headphones, Keyboard) and this seems to have generally solved it.

It does drop out infrequently still.

1005

Hi,

No major WiFI transfer. It’s happening with both ANT+ (Garmin Edge 530) and Bluetooth (Microsoft Surface). It has even happened during outside ride so guess we can rule out external interference. Took pedals to local bike shop that is sold me my Assiomas. They will investigate and contact Favero. Will update on this topice once I here from them.

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1006

I recently updated my firmware.

1008

How common is power drift through a ride? I’ve read through (searched for) a similar problem that I’ve recently been having with my DUOs. So over the winter I’ve been doing TR workouts using my Kickr as the power source. I’ll switch around which bike is on the trainer to shake things up a bit, so rather than swapping around the pedals every time, I just decided to use the Kickr and I’d compare the 2 when the weather warms up to get an offset to the Assiomas, which in the past was always right around +10W (made sense as they’re reading the pedal). So I recently did a few long Sweet Spot rides to test the offset, using the Kickr connected to TR controlling the workout, then having my Garmin read from the Assiomas so I could see the difference. The long SS workouts gave me a nice long steady effort to get good readings. But I got some drift in the Assiomas. I did a 60min @90% and started out with the expected around +10W from the Assiomas, but finished with an average power +16W. I stupidly didn’t save the Garmin ride as I didn’t want a duplicate, but I imagine to get that average, the last ten minutes would have been way higher. Today I did 2x20 @90%. First interval was +16W, second was +22W! And breaking it down into 10min chunks, it was +15, +17, +21, +23. So the power readings from the Assioma were drifting up the entire ride. I’m assuming the Kickr was holding the power even throughout, I guess it’s possible the Kickr was drifting as well but I’m not sure how to test that. Is this drift worrying? Should I reach out to Favero? They’re out of warranty I think, maybe I could do a servicing with new bearings and such. Any thoughts?

Edit: I do have a left sided 4iiii. I could test all 3 together and see if they match up. If both the 4iiii and Assioma drift up, I would think that means the Kickr is changing resistance through the workout. If the 4iiii doesn’t drift, then it’s the Assiomas.

1009

This is actually most likely drift from the kickr and is common for kickrs in erg mode.

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1010

Really? I honestly didn’t really even consider it as the issue. Is it a temperature issue? And I know it’s not a ton but if this is true, that 60min interval got around 10-15W harder. Is this a Kickr only problem or all trainers?

1011
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1012

Love them. They’ve been flawless for several years and I move them between road and gravel bikes.

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