Hey all, it’s your Italian cousin here.
I just got the pre series pro Mx 2, I’m going to do some testing against my smart trainer and report back, if that’s of any interest.
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Heck yeah… it’s of interest. 
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oh cool, yes please…
maybe pics?
charger? how long should it last on a charge?
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I found this walk through on YouTube https://www.youtube.com/watch?v=zw8h3HafUaw (it’s in Italian but the auto-translate subtitles are good.)
This MTB Mag article goes into full detail about the PRO MX pedal system .
This is the Favero spec sheet for the pedals
Sorry to be a pain, but do you have a link to the magazine review in English? When I switch the language to English, it loses the article, and I’ve tried all kinds of searches and can’t find it.
MOUNTAIN BIKE MAGAZINE
Favero Assioma PRO MX power meter
11/17/2023
Cycling Favero presents, as a preview for the Italian market, MTB pedals with integrated power meter, the Assioma PRO MX. They will be available on the market from 2024, but they can be purchased immediately at a special price to help test the pre-series.
[Press release] Assioma PRO MX is the revolutionary pedal power meter for MTB and gravel, 100% SPD® compatible.
It can be used both with the supplied cleats and with the original Shimano SM-SH51 ones. It inherits the reliability and extreme precision of Favero road potentiometer pedals, integrating unparalleled resistance to shocks and trail challenges.
Easy to install and universally compatible
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The Favero Assioma PRO MX pedals with potentiometer can be installed and moved from one bike to another like any other pedal: in a few minutes, without special tools and without assistance from a mechanic.
Thanks to the integration of both Bluetooth and ANT+, they are also compatible with the majority of cycle computers and smart watches on the market, as well as with the major training apps such as Zwift, Strava, Bkool, Trainerroad, Rouvy and many others.
A compact pin to protect the technology
All electronic components and the integrated rechargeable battery are completely enclosed within an extremely compact and resistant pin.
Thanks to the strategic position of the rechargeable battery and therefore the absence of electrical contacts, unpleasant inconveniences of battery-related dropouts, which are typical of replaceable batteries, are thus avoided.
Furthermore, without battery compartments or compartments that can be opened and closed, water, mud and dust cannot enter, thus guaranteeing extreme reliability even in adverse weather conditions.
The product is IP67 certified.
Ultra resistant against shocks and impacts
The 6061-T6 aluminum pedal body is extremely robust and ultra-light, ready to tackle the most challenging terrains.
The attachment system has a hardness of up to 800 HV, for impact resistance never seen before in a pedal power meter.
The IAV Power system and the data measured by Assioma PRO MX
Thanks to the special IAV Power System, Assioma’s measurements take into account our irregular pedaling (e.g. sprints, climbs) or the use of oval chainrings when calculating power, thus guaranteeing an accuracy of ±1% in any situation.
Assioma PRO MX offers extremely complete data reading via ANT+ and Bluetooth.
The visible data is:
- Power
- Cadence
- Left/Right balance
- PCO (Platform Center Offset)
- PP (Power Phase)
- TE (Torque Efficiency)
- PS (Pedaling Uniformity)
- RP (Rider Position)
Real L/R balance data, not estimated
The data provided by Assioma PRO MX-2 is based on measurements taken separately on the right and left sides.
This allows you to accurately observe not only the total power, but also the left/right balance which therefore translates into a real and non-estimated data reading.
Rechargeable and eco
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Assioma PRO MX uses integrated rechargeable batteries: a single charge guarantees at least 60 hours of use.
Charging takes place via a magnetic system which avoids any problems related to accidental tugging of the charging cable.
Made in Italy
Favero Electronics produces each potentiometer in its headquarters in Italy and tests its good functioning individually through careful laboratory tests, fully satisfying the standards required by current regulations.
Favero Assioma Pro MX technical sheet .
Pre series price : €400.82
List price : €613.93
Can be purchased online on the Favero website .
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Thank you!
Here we go, first impressions of the PRO MX2;
Note these are my first power metered pedals so I can’t offer comparison insights.
Installation and setup was quick and easy; they come fully charged, pairing and calibration takes like a minute.
The charging cable is about 2m long and splits in two halfway (so you charge both pedals simultaneously with the one cable).
As someone noted these are not hex key pedals, you’ll need a pedal spanner (I also used an adjustable one without issues as there’s enough room for wider jaws). I swapped them around a few times between 2 bikes, I applied good pressure on a long levered spanner but not at “insanely tight” level, it was easy enough to remove them again.
Here how they look on the bike, they definitely feel solid (if that’s a thing when talking about… pedals).
Testing:
caveats
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I only have 1 smart trainer to test against so where there are differences I have no way to tell which one is correct (or if they are both wrong…).
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I have never ‘vetted’ the smart trainer, so I don’t know if my particular unit is more or less precise than it’s supposed to be. That’s where having more power meters/trainers would come in handy.
That said it’s a reputable smart trainer, known to be very accurate. -
Testing would necessarily only happen indoors here as I have no way to test its accuracy outdoors.
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I’m not a professional at this, I’ve done this testing for my own peace of mind just in case there were glaring issues with the unit. Let me know if I missed something that I could have checked.
What we are working with here:
Elite Direto XR (freshly calibrated)
Assioma Favero PRO MX2 (freshly calibrated)
Road bike with spanking new chain and cassette
I ran several tests on ERG mode and a few longer “free” rides where I tried to play with cadence and power.
Overall the results were very consistent, here an interval session in ERG mode:
detail of the first and fifth intervals:
The only noticeable difference I could find was here, a moment where I dropped the power for a few seconds to stretch out to grab a bottle on my desk. The smart trainer didn’t catch that but in this case I’m confident the pedals are accurate:
Next, cadence:
Not much to report, the two seem matching, apart from the same spot as above where I dropped the cadence but the smart trainer didn’t adjust much for that.
Mean/max power, all as expected with the pedals showing 2/4 watts more than the trainer (up to 20 sec that’s more like 10w).
Now a zwift ride:
Here a sprint:
This sprint was very sudden, see how the smart trainer is trying to catch up and is a few seconds late reacting, showing some slight drops in power. I have noticed it does this every time a push hard all of a sudden whereas the pedals are super reactive and there is no drop. I would tend to say the pedals are very accurate, the smart trainer… almost (not a surprise, smart trainers tend to do that).
the 2 were closer when powering up gradually:
left/right power, looks good - when pedalling with only one foot the other pedal correctly shows zero watts:
I could go on with more charts but they all look the same;
even with the above caveats about how limited this testing is, I’m pretty happy with the pedals (feels like a good bargain at this pre-launch price).
Let me know if you want to know anything in particular or if I can test something I missed.
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Just want to say thank you! I’ve listed my Garmin RallyXC pedals on EBay and this makes me happy I did.
great impressive info/tests!
do you have an garmin connect account? what info do these pedal produce in the “Cycling Dynamics” tab? (its the info at the bottom of an ride activity, it’s also aval on the edge line of computers.)
thx
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mm it doesn’t show the cycling dynamics tab; I think that’s because the activities have been recorded on a Wahoo Bolt and afaik only Garmin records cycling dynamics (?).
Next time I’ll record the activity on my watch and see.
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@FrenzyFrenky any news on pedals? My friend could buy them for me in Italy and send. How are they going for you?
Does anyone have a global release date?
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Hey there,
I don’t have any major update since I went through those tests;
I can only add that I went for a couple of gravel rides at
around freezing temperatures, banged them on some rocks&roots, slid on black ice and into a ditch and the pedals didn’t get damaged in any way that I could see.
Bear in mind this is a sample size of 1 though…
As for getting them through someone else that’s up to you;
I’d be a little wary about the fact that it would be a pain if you have to send them back for any reason (my unit looks good but it’s still a pre-launch phase).
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Squeaking and chirping… I ended up returning mine after riding with three different Garmin Rally sets. Each set started to squeak after around 200-300 km. Now, I’m not 100% happy with my 4iiii crank but at least my bike is silent again…
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Thanks for such “thorough” testing.
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It was not an easy decision - other than squeaking, the Garmin Rally pedals worked like a charm and the power numbers seemed to be reliable and in-sync with my Wahoo Kickr. But in the end, I swapped to 4iiii left power crank and went back to my Shimano XTR pedals.
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@gpl posted the link on reddit.
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Not sure why, but that link didn’t work for me, so sharing the photo from Facebook. Thanks for sharing!
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Well now I have to think up an excuse to buy them
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