I went for the dual sided MX-2s and I found exactly that, my single-sided Stages is quite far off compared to the MX-2s. The MX-2s agree quite well with my Kickr and my Power2max. When I get a bit of spare time I’ll post some comparison plots.
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I’ve also ordered the MX-2’s. From my use of the Assioma Duo’s I’ve learned that my L-R balance changes dependant on my power output. At zone 2 intensities I’m generally around 53/47 but at threshold and above it’s more like 48/52! Kind of highlights the limitations of single sided power meters. My zones based on Left power only would be way out
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Me too!
second ride in the books and i’m really happy and impressed with these pedals. zero rock/root strikes, which is remarkable considering that when i had my rallys i had probably 20 after the second ride. data all looks great, EXCEPT…
…there’s definitely something off about how they’re calculating sitting vs standing rider position. now i’m not sure if this is favero’s fault and the experts can chime in to correct me here but as with all things “cycling dynamics”, there’s no industry standard. what i think favero is doing is basically ANYTHING off from what they consider to be the nominal seated weight on the pedal is counted as “standing”. so if you weigh 200lbs and when you’re fully seated you have let’s say 50lbs on the pedals, if you put 52lbs on them, you’re standing. that may be an exaggeration, but i don’t think it’s far off:
as promised i did some fooling around with seated/standing on my ride today. the very first 20 minutes is quite interesting:
cool, right? except what if i told you that during that entire time i wasn’t fully standing on my pedals even once? it was all variations of shifting weight off of the saddle, to the back, to the front/nose, just floating over the saddle with knees bent, etc. and according to the pedals these were all “standing”. not once in that entire 20 min segment did i have my full weight on the pedals, but there’s a lot of green there.
now is this a problem? no, i don’t think so. as long as it’s consistent and in the absence of a standard, i’m ok with this assessment. just be mindful if you’re using these pedals for mountain biking, we do a LOT of shifting of weight over and around trail obstacles, and most of this stuff is going to be counted as “standing” it seems. at least it is for me
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What am I missing here?
Is the power figure accurate or not? Or is it just the extra data that it (tries to) captures so far as seating Vs standing?? Should I be paying more attention to this data?
Has nothing to do with power, which as far as I can tell from comparing with the rallys is quite accurate. It’s the seated vs standing metric within cycling dynamics. And maybe it is accurate and I just have a different definition of when I’m standing
ANT+ Cycling Dynamics is the standard. It’s part of the ANT+ Power spec.
As for how seated/standing calculated - a quick scan of the ANT+ Power tech docs doesn’t seem to cover it. I’ve always assumed it is based on the position of the peak power phase during the pedal stroke. It’s usually somewhere around 90deg during normal riding and a lot further towards 180deg when out of the saddle. It’s somewhat interesting… but I’m not sure if it’s all that useful.
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Yeah, this is what I was getting at above too. “Standing” doesn’t just mean what roadies think of as standing.
On a side note, I’m surprised so many people care about this or L/R balance. I’ve never seen anything actionable discussed with these metrics, but I have heard coaches say it’s not worth the attention, they’re just “neat” to look at.
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Thanks yeah I don’t think it’s all that useful at all. It’s just interesting when you have access to the data and see maybe 2-3 minutes of standing on a 2.5hr ride w Garmin rallys suddenly balloon to 35 minutes on the same trails with the assiomas. I’ve never in my life stood that long on a ride on a full suspension trail bike. Maybe when I was a kid on my rigid bikes, but not now. Garmin and favero are clearly taking different approaches to calculating this and favero is WAY over calculating lol
Aha look what I found. Same route. Top is 2021 on the Garmin Rally 200. Bottom is today on Assiomas. Yeah I’d say there’s an issue with how they calculate seated vs standing:
You know I agree with you in principle, but the more I’m looking into this insignificant data point and comparing it to my rides with the rallys, the more this little man is creeping into my thoughts and saying “if they can’t get this very basic metric right, how can I have confidence in more sophisticated metrics like torque effectiveness or pedal smoothness or PCO or balance”?
They clearly have power nailed down as everyone can attest, but idk man I’m beginning to have my doubts about the cycling dynamics suite here if they can’t figure out that a mountain biker on a 140mm trail bike isn’t too keen on standing on his pedals very often…
Edit: an entire summer of riding with the Garmin rallys in 2021 and this was the ride with the most standing time, which is accurate:
If favero says I’m standing for 35 minutes x2 so far then well they’re just making it up. Pure fantasy
Left / right balance has some use in practice, for some people. (I myself pay attention to it as a result of several injuries on my left side.) It’s certainly also somewhat useful as a way of continually monitoring the accuracy of the pedals - since the left and right measurements are independent, if something changes markedly then it’s a good indication of something wrong with one of your pedals. Of course they could both go wrong in a consistent way, but that’s less likely.
For seated versus standing, though, I’m sure that this is just a matter of different in-house algorithms, and from the sounds of it the Favero one doesn’t work well for mountain biking. Unless you’re actually trying to increase your seated or standing percentage for some reason, though, I’d file that under “who cares?” It’s likely that they haven’t put much effort into it, rather than “they can’t even get a basic metric right”. It’s MUCH more important to me that the power is accurate, the pedals are solid etc., than that the standing times are accurate.
That being said, if they advertise it and output the metric then you’re quite entitled to expect it to be better, so by all means report it as an issue. But I wouldn’t let it concern you with respect to it being a sign of overall competence.
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To be clear, I was talking about the entire suit of pedaling dynamics. I just don’t see any use for any of it. I think of it as Power Cranks. Something neat to look at, but not particularly useful in real life. If I was REALLY worried about my pedal stroke, I would just focus on it for a few minutes and try to smooth it out, but it’s not like you can (or should) go for a 2 hour ride and focus on pedal smoothness.
Agree with you @Pbase, it’s no more than a nice to look at thing. So many more things you could spend your time analysing that would result in fitness or speed improvements rather than pedalling dynamics. Heck I bet the time spent looking at the pedalling dynamics would be better spent getting some extra sleep 
. Or time stretching. Or time nailing the nutrition.
That said, where do I find these pedalling dynamics - do I need to be uploading to Garmin Connect or can I do this with my Wahoo? 
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Were the standing and pedaling dynamics setup by Garmin? If so, is it all set up to “interpret” data inputs based on their pedals?
Actually I would argue that if your weight isn’t being supported by your saddle, then you are in fact “standing”. Whether you are vertical or not, the weight is being supported by the pedals. It’s not surprising that they consider that standing. Even if Garmin restricts their metric to vertical standing, that’s not necessarily the only correct answer.
Left / right power accuracy is very easy to test and already validated that Assiomas are very accurate. That and cadence are the only metrics that really matter. You can get caught up in the minutiae of the cycling dynamics but they’re of very limited value, none more so than seated vs standing time. What value are you going to gain from having that data? How will it change your racing or training?
If it really bothers you, contact Favero support.
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So we shouldn’t talk about what we’re seeing in the cycling metrics using these brand new Favero pedals?
Maybe they’re useless metrics, it gives some of us something to talk about. Sure they won’t help me racing but it’s fun to compare what I see using other power meter pedals.
Isn’t this a forum?
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I pulled the trigger on the MX 10 days ago. Got the nod from Favero on Thursday last week, an email suggesting they’d passed it to DHL and Saturday and then nothing - it is after all the weekend / a bank holiday here in the UK so hopefully they will arrive mid week.
Looking forward to these, the get great durability and longevity reviews.
Interesting. I got my dispatched note on the 4th May. I am hoping I’d get mine for the weekend.
UK too. ( I keep refreshing my emails 
)
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I just got my text from Fed Ex (4pm). Exciting times.