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Favero Assioma Power Meter In-Depth Review

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It’s been about three months since Favero announced their next generation power meter pedals, the Assioma.  These pedals would build upon the BePro units of two years ago, doing away with the complicated installation process while also adding in Bluetooth Smart support and a companion app.  Like the previous generation, they’d have a dual sensor solution (Duo), and a single-pedal solution (Uno).  And like the previous units as well, they’d be priced far better than most competitors.

Of course, my question is whether or not they’d be as accurate as the BePro units, as well as how well they’d handle day in and day out.  So I sit here about 45 days from my first ride with them, with plenty of data on these final production units.  Note that I did not receive these from Favero, but rather went out and got them myself from normal retail channels.  I’m impatient like that.

With that – let’s dive into things!

Unboxing:

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Wait, you wanted an unboxing video complete with weights?  No problem – here’s my Favero Assioma Unboxing video (and first ride data):

If you still want the photograph version of this, then I’ve still got ya covered!  Let’s start with the box:

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Now the first thing is that not all boxes are created equal.  The boxes have a very important red dot on them in different spots, which indicates whether you’ve got the Duo or the Uno.  The Duo is the dual (left/right) sensing pedals, whereas the Uno is the single sided variant with only one power sending pedal.

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It’s a smart way of differentiating without having to make two totally separate boxes.

Inside the box, here’s the goodness you’ve got if you crack open the lid:

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Not gonna lie, it just looks super pretty above.  Really cleanly executed.  Down below deck I’ll take out all the parts sitting in little compartments. Sorta like a Bento box.

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And here’s everything all placed out on a table:

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To itemize those parts, there’s the charging cables, for which you’ve got two of (one for each pedal), and then they plug into the dual USB power adapter:

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And of course, there’s a pile of outlet connectors for most of the world’s outlet types:

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Then we’ve got the cleats.  These are Xpedo-based cleats, which are identical to those of the PowerTap P1.  They’re very slightly different than a Look Keo cleat.  For some people you’ll find a Look Keo cleat will work just fine for you, and for others (like myself), I find I clip-out a bit too much when not using the included (or similar) cleats.

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Then we’ve got the pedals.  Since this is the Duo, both are power sensing inside.  Note, normally the pedals will be spotless perfect, but I can’t find the SD card with my perfect pedal pictures on it.  So, slightly used pedals you get at this juncture.

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Alongside that we’ve got a small stash of washers.  These are used as spacers attached to the pedal, to keep your pedals from pushing up against carbon cranks.  I usually install one spacer per pedal, but for your situation you may need two.

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And finally, the manual.  Because everyone needs a manual.

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Just for a quick look at sizes, here’s how these all line up compared to the PowerTap P1 and Garmin Vector 3 pedals (left to right: Favero Assioma, Garmin Vector 3, PowerTap P1):

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(Above left: Assioma, Vector 3, P1…above right: P1, Assioma, Vector 3)

Got all that? Good, let’s get it installed.  It’s gonna take a while, you know, at least 1-2 minutes.

Installation/Setup:

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If you rewind two years ago to when Favero came out with their BePro pedals, you’ll remember the installation process was less than awesome.  It wasn’t horrible, but it wasn’t awesome.  It required special tools, stickers, tidal and moon patterns be just right, and then a bit of luck.  Plus, it required a ride or three of settling.

This time though with Assioma?  Dead simple.

Seriously.

But before we install the pedals you will need to download the iOS or Android app and activate the pedals.  If you don’t do this, they won’t transmit any power.  Personally I think this is stupid as it’s just going to increase their support costs for people that missed this step, but the logic is that it enforces the warranty period.

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Once that’s done you take the included Allen wrench and then two pedals.  Also, stash a spacer or two on each of said pedals:

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Then, simply twist the pedals into your crank arms.  It’ll probably take you 20 seconds or so per pedal:

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And then you’re done. Really, it’s that simple.

When it comes to how hard you need to twist/torque them on, just go with ‘feels strongly snug’.  I haven’t seen any evidence that they have troubles if you don’t torque to a certain spec.  I’ve swapped them about every other ride just to test things, and it’s been solid on all rides.

As I do however, on all power meters, I usually will do a few quick sprints around the block to settle things before doing a zero offset.  So I’ll just sprint for 4-8 seconds and do it perhaps 2-3 times.  That’s it.  That helps ensure the pedals are nice and snug.

Then I’ll do a zero offset (I’ll show you how to do that in a minute).

Note that you will need to change/set the crank length.  You could do this with the phone app, or you can do it with your head unit.  This only takes a second though and is located under sensor settings:

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Your crank length is usually printed on the inside of the crank arm, near where the pedal attached.  It’s often something like 172.5mm, 175.0mm or similar.

General Use Overview:

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When it comes to using the pedals, things are pretty straightforward.  We’ve already attached the pedals to the bike and then set the crank arm length.  Ideally we also installed the cleats on your shoes.  If you haven’t, I’d suggest doing so.

The next step is ensuring that you zero offset the unit.  This is more commonly called ‘calibration’, despite some nuances there in the actual term among power meters users.  No matter, I recommend doing a calibration after install (+ a few sprints), and then usually once before each ride.  Doing a zero offset/calibration is helpful because it allows you to spot a problem before it becomes a big issue.  If you never zero offset you may not realize something is amiss.  Think of it as a health-check, more than a calibration.

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On your head unit, once in the calibration menu, ensure that you’ve got no weight on the pedals, and then let it do its thing:

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It’ll come back with a value of zero and a success prompt.

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If you dive into the settings on some head units, you can also see the battery state of the pedals, as well as the manufacturer and sometimes firmware version:

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This same data can be found on the Favero Assioma app as well.  It’s within that app that you can check firmware and update it.  At present there haven’t been any firmware updates yet.

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The app doesn’t really do much else besides that.  It’s mostly just the initial registration/warranty piece and a quick status check.

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You can however set power correction as well as convert an Uno set into a Duo set or vice versa.  Note that typically power correction isn’t for changing left/right balance, but rather for dealing with crank lengths of differing sizes.

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When it comes to transmission, the unit broadcasts constantly on both ANT+ & Bluetooth Smart, also known as dual ANT+/BLE.  In doing so, it broadcasts the following metrics:

ANT+ Power (total)
ANT+ Power Balance (left/right)
ANT+ Cadence
ANT+ Pedal Smoothness
ANT+ Torque Effectiveness
Bluetooth Smart Power
Bluetooth Smart Power Balance
Bluetooth Smart Cadence

The ANT+ side of things is generally used on Garmin head units, as well as Wahoo, Stages, SRM, Lezyne and others.  Whereas the Bluetooth Smart side of things is generally used on Polar, Suunto, and various phone apps.  But these days Garmin’s 2017 products can connect to Bluetooth Smart as well, and of course so can Wahoo, Stages, Lezyne and others.

As a general rule of thumb though for power meters, when given the opportunity to connect over ANT+ or Bluetooth Smart, you should choose ANT+.  Why?  Well in most cases, especially for dual left/right units, head units handle that better in ANT+.  For example, Suunto’s devices can’t actually connect to both the left and right side of the Assioma (or even the PowerTap P1 pedals).  So instead you effectively just get left or right power doubled.  And other products sometimes have problems correctly ‘merging’ the two left/right sides on Bluetooth Smart.  Someday these problems will be fixed, but today is not that day.

On the flip-side, sometimes folks with wearables (like Garmin’s watches) will have problems in aero position and ANT+ transmission from some power meters.  In that case, giving Bluetooth Smart a whirl may fix the issue for some.

In any case, here’s a glance at what all those metrics look like on a typical ride with the Assioma pedals.  This was recorded on an Edge 1030, but would be the same across pretty much any ANT+ head unit. You can look at the full activity file here:

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When it comes to charging, the Favero Assioma pedals use rechargeable batteries that are built into the pods themselves.  You’ll see the small contact points on the outer edge of the pod:

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The USB-based charging connector then magnetically snaps onto these. It fits quite nicely, and illuminates once charging:

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Favero advertises 50 hours of battery life per charge.  Here’s where I am on battery status: I had one battery die just yesterday, and I suspect I’m in the 20-25 hour riding range since the last full charge (which I’m pretty sure I did overnight).  At the same time, I had a TON of travel in the DCR RV over the past 2 weeks, which the bike was in.  My guess is about 20-25 hours of driving time easily, plus two transatlantic flights.  Which points me in the 50-65 total hour range, in the unlikely event that the pedals actually turned on the entire time I was driving.  It’s something we’ll have to keep an eye on.  Note that Favero says their testing on units shows closer to 65 hours.  Also note that you can put the pedals into a sleep mode while travelling, which would likely address what I saw.

In any event, the two charging cords connect to the dual-USB port power outlet:

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The cables are nice and long, so it’s easy to charge them while still on the bike.

Also – I’ve seen some concern about what happens when the batteries ‘die’, apparently in reference to how you might swap them out.  Some of this is due to misunderstandings about how rechargeable batteries die.  First off is that batteries are generally rated to a certain number of recharge cycles, in the case of the Assioma battery, that’s estimated to be about 500 cycles (per an e-mail from Assioma).  Once it reaches that number, they don’t stop working.  Instead they might slowly degrade, perhaps to 80% of battery capacity.  With a battery life of 50 hours, and the 500 recharge cycles, that puts you at 25,000 hours of battery life before it starts to degrade.  That’s 24 years of riding 20 hours per week.  Or almost 50 years if you rode 10 hours per week.  Seriously, you’ll have long moved onto something else by then.  Battery cycle time is not your concern here.

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Finally, a brief note about the pod durability.  The pods are internally sealed with a resin, which protects everything inside of them.  In my Favero BePro review two years ago I noted that in the couple months I used my set then, that the outer shell got damaged and I was concerned about long-life durability.  Thankfully, that turned out not to be an issue, and I don’t believe I’ve received a single complaint about that being an issue for the BePro units.  With Assioma, the company hardened the material even more, and thus I don’t think that’s an issue.

Still, I will note that at some point along the way my pods got a bit wonky.  To be 100% fair to these pedals, I have no idea if this was caused during a ride, or during transport or some other situation which is 100% my fault.  I generally treat gear like crap to see how well it holds up.  The pedal still works just fine, it’s simply that the rear of my Assioma is a bit squiggly.

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Hardly something I’d be super concerned about, but I figured I’d at least mention it.  Either way, the company has a pretty solid warranty policy in the event that your pedal gets damaged far more than that.

Power Meter Accuracy Results:

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I’ve long said that if your power meter isn’t accurate, then there’s no point in spending money on one.  Strava can give you estimated power that’s ‘close enough’ for free, so if you’re gonna spend money on something it shouldn’t be a random number generator.  Yet there are certain scenarios/products where a power meter may be less accurate than others, or perhaps it’s got known edge cases that don’t work.  Neither product type is bad – but you just need to know what those use/edge cases are and whether it fits your budget or requirements.

As always, I set out to find that out.  In power meters today one of the biggest challenges is outdoor conditions.  Generally speaking, indoor conditions are pretty easy to handle, but I still start there nonetheless.  It allows me to dig into areas like low and high cadence, as well as just how clean numbers are at steady-state power outputs.  Whereas outdoors allows me to look into water ingest concerns, temperature and humidity variations, and the all important road surface aspects (I.e. vibrations).  For reference, the Favero Assioma has a claimed accuracy rate of +/- 2% [Update: As of May 2018, they’ve changed their claimed accuracy rate to +/- 1%].  It also does not require any magnets for cadence, while also automatically correcting for any temperature drift. Both of these are pretty common though on most power meters these days.

In my testing, I generally use between 2-4 other power meters on the bike at once.  I find this is the best way to validate power meters in real-world conditions.  In the case of most of these tests with the Favero Assioma I was using the following other units on four different test bikes:

4iiii Precision Dual power meter
Elite Direto Trainer
FSA PowerBox
Power2Max NG and NG ECO
PowerTap G3 hub based power meter
Wahoo KICKR SNAP 2017/V2 Trainer
Wahoo KICKR 2017/V3 Trainer

In general, my use of other products is most often tied to other things I’m testing.  Also, when it comes to data collection, I use a blend of the NPE WASP data collection devices, and a fleet of Garmin head units (mostly Edge 520/820/1000/1030units).  For the vast majority of tests on the Favero Assioma I just used Edge 520 devices and an Edge 1030 unit.

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Note all of the data can be found in the links next to each review.  Also, at the end is a short table with the data used in this review.  I’ll likely add in other data not in this review as well, once I finish consolidating that data.  I’m a bit behind on getting data off some of my head units into folders.

With that, let’s get right into it and start with analyzing an indoor trainer ride, in this case a 30×30 workout.  This is a trainer workout where the power shifts every 30 seconds from a recovery wattage to an interval wattage.  Here’s the overview of the workout:

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In looking at the high level view, you’ll notice all three power meters are very similar, however the Power2Max NG does seem slightly higher during some of the work periods.  The Direto and Favero units are virtually identical throughout.  This slight difference is within range of the +/- 2% of both units, so that’s not something I’m terribly concerned about.

All the units react very quickly to the changes in power, with no obvious lag by any of them.

If we look at the nearly 900w sprints (the above charts are smoothed at 3 seconds), you’ll see the power meters again agree very well here:

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Of course, anytime you look at max sprint power you’re going to get very slight recording/transmission differences between units – hence why you see them slightly different at the absolute peak power.

A better way to quantify that is by looking at maximal power graphs, which helps to remove some of those recording quirks.  Here’s how that looked:

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This is where you see those slightly higher values on the Power2Max NG ECO come to light more clearly. It’s also where/why you see those early ‘drops’ impact the graph for the yellow line.  Those are likely just transient recording issues in my environment (I.e. WiFi/etc…), and not reflective of that power meter.  Said differently: It could have happened to anyone.

As for the Favero Assioma though, it looked really solid throughout this.

Let’s take a look at another indoor ride, this time with the FSA PowerBox and a Elite Direto trainer.  In this case this structured workout was at a bunch of different steady-state levels held for various lengths.  It’s interesting because it shows if there’s any drift indoors over the course of a workout. Note you’ll see double Assioma units listed here on the charts as I was recording on two head units at once (FR935 + Edge 820) to validate both recordings were identical.  I often do that in power meter testing.

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Overall you see the three units are very close, except that the PowerBox seems to be slightly high until the 12 minute marker when I did a zero offset.  It’s a slight pattern I’ve noticed that it seems to need that zero offset more than I’ve seen with other units.  No big deal as long as you’re aware, but it’s super clear here.  Also, keep in mind we’re only talking a few watts beyond the +/- 2% range of both units combined.

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In any case, back to the Assioma, which performs well here.  Seriously folks, just look at these graphs:

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If they were any more alike, they’d be twins (ok, technically two of the four are twins).  But in that fourth interval we’re a mere 4w apart on 470w (so less than 1% difference).

I don’t need to belabor the indoor graphs anymore, there’s no concerns there.   Oh, but before we go – cadence looks good indoors too.  Compared to the PowerBox it’s identical, and very close to the estimated cadence on the Elite Direto (when it doesn’t struggle on cadence).

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Now let’s head outside for a mountain ride on a cool/rainy day.  I like these sorts of rides as they allow you to see if there’s any issues in temperature drift as I climb.

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With a 10-second smoothing the three units look near identical.  Starting off on the climb, you’ll notice I don’t stop at all, somewhat on purpose.  There’s a very slight dip in power as I go on a brief roller, but with not stopping that doesn’t give any units a chance to zero offset.  In my opinion, zero offsetting to compensate for temperature shifts is cheating these days, so I’m looking to see that despite this shift in temperature, all units track properly.  And if I zoom in on that 50 minute climb section, there’s virtually no difference between the three units.  All of about 3-5w in most cases.

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Now what about descending?  That’s a different use case, as that starts to rattle the bike a bit more, which could impact accelerometers that are used in cadence (and thus power) measurement.  Here we see very slight differences in the units.  They all track almost the same plot, but within about a second delay (again, smoothed).  This is likely due to very minor differences in the algorithms for each as I stop and start pedaling around sharp mountain corners, and then the surges each time.

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Practically speaking you’d never notice this while pedaling outside with just one power meter, as the numbers are the same at the end of the day.  It’s only really noticed with a bunch of power meters.  In fact, you’ll see this almost perfectly lines up to when the cadence values differ briefly for each power meter as I start/stop pedaling.

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Let’s take a quick look at that mean-max graph though:

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Pretty darn close.  A tiny bit of separation at the upper end, but about as good as you’re likely to get with three power meters in real-world out in the mountains on a wet and temperature shifting day.

Finally, one last outdoor ride to analyze, this time a suburban style ride with tons of stops and starts.  In this case I had 7 head units recording sensor data, three of which were recording Assioma (including wrist, tri aero bars, and top-tube placed units).  Really trying to validate all were seeing the same.

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And sure enough, all the Assioma data sets were the same.  That generally tells me there’s strong signal strength on the unit.  While sometimes you can blame the head unit for weak reception (I.e. the Fenix 5/5S), other times you’ve just gotta call a spade a spade when boatloads of people across many head units have issues (Stages Power single sided units).

In the above case, if you thumb through the results, you’ll see absolutely nothing of concern.  Again, the data looks great between the units.  There’s one point where the PowerBox drops out for a second or two (around the 1:13 marker).  Which could be ANT+ related on the Powerbox, the Edge 520 that was recording it, or something else entirely.  That unit only had a second device recording it.

Instead, let’s just wrap-up with the Mean-Max graph here:

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Despite a ton of stop and go, lots of surges, and all sorts of other fun city and suburban riding creativeness (including some rough roads), there’s almost no tangible differences here between the units from 15-seconds onwards.  Though interesting the PowerTap G3 hub did spike a bit higher than the rest on this one ride for the sub-15 second power.  Not sure why…welcome to the realities of power meters day in and day out when recording 3-5 units every ride.

Ultimately – looking at all the data I have – I see absolutely zero issues with accuracy of either power or cadence in the Favero Assioma pedals.  They’re solid.

(Note: All of the charts in these accuracy sections were created using the DCR Analyzer tool.  It allows you to compare power meters/trainers, heart rate, cadence, speed/pace, GPS tracks and plenty more. You can use it as well for your own gadget comparisons, more details here.)

Power Meter Recommendations:

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With so many power meters on the market, your choices have expanded greatly in the last few years.  So great in fact that I’ve written up an entire post dedicated to power meter selection: The Annual Power Meters Guide.

I refresh that annual guide each September, and this September will be no different.  I tend to wait until after the Eurobike/Interbike trade shows to do so, though I don’t really expect any further new entrants this year at Interbike (could be surprised though!).

Until that post comes out in the coming weeks, here’s some new power meter reviews and previews that may be of interest that aren’t covered in that post:

A) 4iiii Precision Dual System In-Depth Review
B) WatTeam PowerBeat Gen2 Dual System In-Depth Review
C) Quarq DZero In-Depth Review
D) ROTOR 2INPower In-Depth Review
E) Power2Max NG In-Depth Review
F) Power2Max NG ECO In-Depth Review

Plus these options too:

G) FSA PowerBox
H) Stages LR dual system
I) Garmin Vector 3 pedals

With the Stages system though, you’re looking at later this year for a full in-depth review, as they don’t plan to start shipping till November or so.

But what about comparing the Favero Assioma to the PowerTap P1 pedals or Garmin Vector 3 pedals?  Well, having all three makes it somewhat easy to compare.  I’ve got a separate post I’m working on that dives into the details a bit more, but here’s the down and dirty version:

Favero Assioma: By far the least expensive dual option at $735-$799USD (the price keeps flipping around), and accuracy wise just as solid as all of them.  While availability is slightly constrained right now, I’m sure that’ll settle out in the coming months.  The only real downside here is the pods, which some might find visually displeasing.  But I suspect many won’t care given the cost savings.  You won’t get advanced pedaling metrics like Garmin’s Cycling Dynamics, or PowerTap’s app-driven metrics. And of course the batteries are rechargeable vs coin cell, but that’s just a personal preferences thing.  Seriously, Favero has nailed it here at the price point.

PowerTap P1: These have been around a few years now, and as such a fairly ‘well known quantity’.  They don’t have any pods, but are a bit chunkier than regular pedals.  They run on standard AAA batteries, albeit for warranty reasons require Lithium batteries which are slightly more expensive but still easy enough to find.  PowerTap does have advanced pedaling metrics, but they’re only available within their app platform and so it’s primarily used in the bike fit realm more than as a day to day metric.  Finally there’s price, which sits at $999 now, a price I believe to be slightly too high given Vector 3 now being offered at the same price.  I’d argue $899 would be the right price today given the market.  Still, up until this summer for the past two years they’ve been my go-to pedal that I travel with and use constantly.

Garmin Vector 3: It took three tries, but Garmin finally nailed it with Vector 3.  In many ways it’s what people always wanted – a pedal that was easily swappable and didn’t require pods or a pedal wrench.  It also just looks like a normal pedal.  It runs on LR44 coin cell batteries, which you can usually find in most gas stations or drug/grocery stores, and the battery life is solid.  It has the most advanced pedaling metrics of any of the noted pedal based power meters, and also makes that data easily available on all Garmin head units (but not 3rd party head units).  Accuracy wise, things generally seem good, but it’s still a bit beta for the next couple weeks – so you’ll have to wait for my full in-depth review once they finalize stuff.  For $999 though, I think it’s probably the winner at that specific price point.

All of which is a round-about way of saying that I think if you’re looking to spend in the mid-$700’s, then the Favero Assioma is probably the winner.  Whereas if you’re willing to spend $1000, then Garmin Vector 3 is probably the winner.

Note, I’m not including the WatTeam dual option in this mini-comparison for the very simple reason it’s not pedals.  I’m also not including the Polar or Polar/Look Keo pedals because…well…nobody cares about them anymore.  I’m not including the Xpedo power pedals because for 3 years they’re “going to ship in 2-3 months”.  Seriously, they’re not going to ship.

Summary:

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With the Assioma pedals, Favero came back to the table with modest updates that not only keeps their power meter pedals competitive, but did so while keeping their price market leading.  The addition of Bluetooth Smart is welcomed for those head units that support it, and more importantly the ease of installation and swapping from bike to bike makes this a real option for those that want to move them between bikes.  And of course, the accuracy continues to be very solid.

While the battery life is about a third that of Vector 3, and the pods are still present on Assioma, these are likely minor items for most people, especially given the price difference.  Further, the last two years of Favero being in the market with the BePro pedals I’ve seen almost no issues from readers on units.  Given my reviews seem to be the place people post issues, the lack of issues is telling (since I know plenty of units are being sold).

For those looking for a more detailed shoot-out between the three major power meter pedal options (beyond the previous section), look for an upcoming post where I’ll dive into little quirks like q-factor differences (shhh…doesn’t matter), cornering, and more.  In the meantime, feel free to hit up the comments section below.  With that – thanks for reading!

Found this review useful?  Or just wanna save 10%?  Read on!

Hopefully you found this review useful.  At the end of the day, I’m an athlete just like you looking for the most detail possible on a new purchase – so my review is written from the standpoint of how I used the device.  The reviews generally take a lot of hours to put together, so it’s a fair bit of work (and labor of love).  As you probably noticed by looking below, I also take time to answer all the questions posted in the comments – and there’s quite a bit of detail in there as well.

[Update: The Favero Assioma pedals are not eligible for the DCR 10% Coupon, because Clever Training has instead unilaterally applied a 10% discount to them – effectively rendering the coupon duplicate. This was done at manufacturer request/demand. While CT could have raised the price 10% so the DCR coupon would work, it was better for more people to just put them on perpetual 10% sale. However, using the link below does still support the site here, coupon or not. So I appreciate that, and I think we all appreciate CT just doing the right thing here rather than raising prices for a fake coupon.]

I’ve partnered with Clever Training to offer all DC Rainmaker readers an exclusive 10% discount across the board on all products (except clearance items).  You can pickup the Assioma pedals from Clever Training. Then receive 10% off of everything in your cart by adding code DCR10BTF at checkout.  By doing so, you not only support the site (and all the work I do here) – but you also get a sweet discount. And, since this item is more than $75, you get free US shipping as well.

Assioma single or dual sided pedals (US/World)
Assioma single or dual sided pedals (Europe)

Thanks for reading!  And as always, feel free to post comments or questions in the comments section below, I’ll be happy to try and answer them as quickly as possible.  And lastly, if you felt this review was useful – I always appreciate feedback in the comments below.  Thanks!

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840 Comments

  1. deepak rao

    So In November I charged the assiomas [after following Favero instructions of resetting the firmware] fully and maintained a spreadsheet.

    Till Jan 12th, I got 50 hours exact and STILL had yellow left for each battery, and they both drained evenly.

    Charged them on 12th, and now, after only 4 hours, it is showing 50%. Some problem again.

    I am attaching my spreadsheet as well as a screenshot of the battery today, after 4 hours of riding. Well, the attach does not seem to be working.

    • Hello Deepak,

      Every case is specific, so I’d always suggest contacting our Support team for quick an accurate check our the power meters. Once you’ve opened a Support request, you’ll be able to send us a functional report by simply pairing the pedals to the Assioma app.

      In any case, prior to that, I’d suggest verifying that the latest firmware update has been installed.

      For further information and support, please refer to the communications from the Support team ( link to cycling.favero.com ) since they have all the tools to detect the possible issue and give you the right solution in the shortest time possible.

      Have a good day,
      Andrea | Favero Electronics

    • deepak rao

      So Favero asked me to update to 3.42

      just did and charging now. Hope it settles the issue. Was previously on 3.0. I think the new firmware is specifically for the issue that I am having.

    • Simon

      Hi Andrea,

      I submitted a support request about two days ago now and am still waiting for a response, I also followed that up with an email and that too appears to have gone unnoticed.

      Could you check whether a request was received and when I can expect a response.

      Many thanks,
      Simon

  2. Davis

    Ray-
    In the 2018 power meter review it states that Favero is working on a firmware update to add cycling dynamics. Any updates on the timing of that release?
    Thanks

    • They’re still chugging on it, but no specific release date. My guess is soon – but given they’re the first to adopt it, I suspect there’s some cross-validation with Garmin going on as well to ensure people can actually use it.

  3. Joel

    Trying to decide between dual Favero Assioma and new iQsquared coming soon for a Peloton. My girl likes getting double credit on both Zwift and Peloton classes. Says competition keeps her motivated. Leaning towards iQ but there’s a sale on Favero now.

  4. Kevin

    Has anyone had any issues with these and Garmin Edge 500.I realise they’re not strictly compatible and I have used my pedals with Edge 520 with no problems so I’m pretty sure it’s the 500 but I get dropouts in cadence every so often which obviously then shows as a dropout in power

  5. V

    I removed one spring and it now has the perfect amount of tension.

  6. Ducourtioux Patrice

    For information concerning European buyers, I ordered a pair of Assioma on the clevertraining website in England, in addition to the fact that there was no news for 1 week, I could finally know that there was no availability date and I had for more than 17€ bank charges for my order from France. I therefore cancelled my order and ordered directly on the Favero website.

    • Danny

      Same for me, I ordered on 27.02., contacted clevertraining UK a few times, but still not specific date. UK should leave EU on 29.03. so i am worried, what happens with order arriving after this date, perhaps price will increase for customs. I will cancel order too. Pitty that I did not before.

    • Patrice Ducourtioux

      My Assioma wil be delivred on thursday 🙂

    • Ernesider

      IMO it is Extremely doubtful that the UK will leave the UK on the 29th of March.. There will be an extension of at least a few months or possibly a few years until a deal is agreed and implemented. And then there will be a transition period of possibly another few years during which nothing much will change.. As a matter of interest are other suppliers or Favero itself any more definite on a delivery date ..??

    • Vid Balek

      I also ordered them from clevertraining UK 19.2. I also did not get a specific delivery date. How long did it take to get you a refund. I am considering to cancel order and get them from our local store. They cost a little more but I am realy not certain what is happening with my order at clevertraining UK. I am not sure how can porocessing take 1 month when it says 5-7 days in online store…

    • Vid Balek

      My local store also didn’t have them in stock. So I will wait for Clevertraining UK to get their shipment. Ray got the confirmation that one batch of assioma orders should be shipped in friday.

    • Patrice Ducourtioux

      the refund was made within one week

    • Hi guys – hopefully yours all shipped out yesterday. I think I followed up with a few of you offline as well.

      Sorry for the communications challenges there. I think aside for 8 people with recent orders, all Duo’s from the last month+ should be out the door.

      Appreciate the support of the site via Clever Training!

    • Vid Balek

      My faveros got shipped yesterday and are comming next week. Thank you for your follow up!

  7. Brian

    hmmmmm discount doesn’t work anymore?

    • Craig Robertson

      Works ok here via Clever Training Europe. Make sure no extra spaces, etc.

      For the Duo it brings costs down to 557.99GBP from 619.99GBP.

    • Joel

      Didn’t work for USA site. Still get VIP credit ($$$ for future purchases) but discount does not apply to this item. Still works on other items such as ISM saddles and RedShift!

  8. Elio

    I bought me the Assioma duo about 3 weeks ago (used the link from this site but no luck with any discount). I am satisfied with the pedals and the accuracy of the readings but I am having a situation about with my shoes

    Basically I can wear my shimano R321 shoes as is, no changes needed. As for my NEW s-work 7 shoes, well, the normal cleats (look keo red) positioning did not meet the 2 mm requirement (between shoes and pod). I then had to move the cleats all the way inward (toward BB) and now it feels as if I am favoring the outside of the foot, tending to roll my feet outward and straining the outside muscles of my lower legs (2 peroneus muscles and the such). It does not help that I pedal with pigeon toes (you can see me wearing black/red kit here link to youtu.be , starting time is embedded in the video)

    What do you think can be done to remedy this situation? I was thinking of cleat shims but that’s not a good idea because I have other shoes that fit me fine and also my seat post is fixed (Look 695 cut to my exact length and I do not want to play with that)

    PS: To reduce/limit the pigeon toes action, i am considering switching to grey cleats (4.5 deg instead of 9 deg in the reds)

  9. Deepak Rao

    So, Ever since the last firmware upgrade, and the time I switched off the pedals for travel, they have never been the same. Raised a ticket, and they gave me a special firmware. I still have the issue of the left [or sometimes the right] draining excessively.

    They asked me to reset the pedals, and for the first charge cycle after that it was fine, and gave me 45 hours and was still showing yellow. But, after the second charge, again the left pedal is draining too fast.

    Anyone else having this issue?

  10. Collin

    Didn’t see much detail regarding UNO vs. DUO. What are you gaining by going with DUO, does the right pedal add significantly higher accuracy?

    • Michal

      The answer is simple: yes.

    • Scott

      Actually, the answer is not simple. The answer is, it depends. You can read more about what Ray has to say about the subject in his 2018 power meter review where he talks about single side power meters such as the Stages single crank arm power meter.

    • Michal

      I doesn’t depend. Left only power meter accuracy is always worse and numbers it produces always leave major uncertainty. It is ok, as a training tool it’ll give better feedback than heart rate monitor or cheap smart indoor trainer, but I wouldn’t rate it better than +/-5% for literally any single person (it may be worse though).

    • Scott

      Not true. Read Ray’s comments as mentioned above. It will help explain it for you.

    • Michal

      I read that long time ago. I’m speaking from my own experience and observations of other riders data. My opinion is that properly functioning power meter that measures whole power generated by the rider is significantly more accurate than properly functioning one-sided power meter which always has to guess half of the generated power.

  11. Colin

    Do the Xpedo cleats provided work with Look Keo pedals? Just trying to see what pedals I can buy for the “other” bike.

  12. Marklemcd

    Does anyone know if wahoo ever plans on fixing their calculations for Work with the assiomas? I rode 2:10 yesterday and recorded on three devices and the ELEMNT was 400 calories lower than my garmin 935 and fenix 3.

    The garmin devices and the elemnt agreed on avg watts and time, 205 and 2:10 but wahoo gave me only about 1200 kJ vs slightly over 1600 for the garmins. 1600 is what I get when calculating manually too.

    Anyone have any insight?

    • Michal

      Are you sure you are looking on kJ, not calories, on Elemnt? I’m asking because you wrote ‘calories’ in second sentence.

    • Mark McDermott

      Yup, meant kJ. Sorry in my mind I use them interchangeably since the reason I care about kJ is to know how many cookies I can have later.

  13. Devious

    Background
    I’ve recently got the Favero Assioma Duo pedals and use a Garmin Forerunner 935 to record my rides. When riding outdoors I use an Edge 510 unit as well for display purposes.

    Problem
    Whilst the Edge 510 pairs to the Assioma pedals as soon as I start recording on my Forerunner 935 the power display on the Edge 510 drops out and isn’t being recognised on the screen. It’s like the Forerunner is interfering with the Edge 510 and is stopping it working?

    Has anyone else had this problem?

    • Scott

      It sounds like the two devices are competing for the Bluetooth connection. The pedals can only connect to one BT device at a time. You’ll need to connect them with an ANT connection, or at least one of them.

    • The Edge 510 doesn’t support Bluetooth sensor connections. However, what Scott is saying is in the right ballpark.

      More than likely, you’ve got two different crank lengths set. This will cause a tug of war between the two devices using ANT+ (or even Bluetooth Smart). Ensure both devices are set to the same crank length.

      There’s no issues in having multiple devices connected to the Assioma pedals. In fact, I did it last night and will do it again tonight. 🙂

    • Devious

      I can confirm I have Bluetooth turned off on both the Forerunner 935 and the Edge 510 and have been using Ant+ (as stated only option on Edge 510). I will check the crank length issue and see if this could be the problem and report back. Thank you for your responses.

    • Devious

      Thank you so much Ray. It was the crank length settings that were causing the problems. I swore that I had set them correctly when I originally installed the pedals and whilst they were set as 175mm in my Forerunner they were still showing as 172.5 in the Favero App. I also corrected it in my Edge 510 after trying a factory reset yesterday which didn’t resolve the issue. It now seems to be working 🙂

    • Awesome – great to hear!

  14. GG

    Fantastic review as always, my go to place for reviews, wonderful service you provide, my question is can anybody help, I have just ordered my duo’s and they will arrive next week, but coming from speedplay this is going to be a bit of an adventure for me, so many cleat options, and not knowing how much float i have set on my speedplay zeros, i guess they are set similar to my mtb spd cleats 6 degrees ?, I want to buy extra cleats, now keo have red, black and grey, 9, 4.5, and 0 degree, but no 6, in the box they have 6 degree float cleats, will this product work with my assiomas from chain reaction cycles link to chainreactioncycles.com or do i have to go for 9degree keo red cleats, I need a spare set for another pair of shoes.
    Many thanks.

    • Ernesider

      I recommend the
      Look Keo Grey cleats
      Which are 4.5 degrees..!!

    • Stefff

      Yes +1 : I have 2 pair of shoes, both with grey Keo cleats, and they work perfectly.

      The included cleats (with Assiomas) might have more float, but… they are VERY difficult to unclip. Using them for my wife shoes on a turbo trainer, and had to decrease tension on the pedals.

    • GG

      Thanks for your reply, just worried about float, coming from speedplay, 4.5 sounds nothing, but look keo does not do 6 degree just 9 degree ?

  15. Ihsan

    Hi,

    Is there any downside to not removing the existing cadence sensor(s) with the Assiomas? I have two bikes that I’ll use the pedals interchangeably, and would like to keep the existing cadence sensors for when I’m riding the bikes without the power meters.

    A follow up question is about any possible magnet interference. On one of the bikes, I have Garmin’s old combination speed/cadence sensor that uses the magnet on the crank arm. Do you think it would cause interference with the Assiomas?

    If anyone is using them with an older combination speed/cadence sensor, I’d love to hear your experiences.
    Thanks.

    • Heirich Hurts

      No problem. Just have your computer talk to whichever cadence sensor you choose irrespective of how many there are on the bike. Power readout and cadence readout from the pedals are independent so you can use the pedals for power and your existing sensor for cadence, or not.

    • Danny

      I did not find option to disable cadence from pedals. I have new magnet-less sensor from Garmin and I rather disabled it and use only cadence from pedals, because It seems sometimes that cadence numbers are erratic, when Edge received cadence signal from 2 sources. But not sure, Edge might just priority to one signal source before other one …?

    • On the Edge, you can simply toggle the ‘Connected’ option to off, which will keep the sensor saved, but disable it.

    • Danny

      Hi Ray, it’s exactly what I did with Garmin cadence sensor and all work fine, but did not find what Heirich Hurts suggests, that there is option on edge to choose whatever cadence sensor I want to use. Assioma is registered as one device, not two separate – power and cadence.

    • Yeah, there’s no method to do that on Garmin devices (and I can’t off the top of my head think of any brands you can do that on). It’s purely an order of precedence type thing.

    • Ihsan

      Thanks guys. I have the old type Garmin GSC-10 combined speed cadence sensor as a single unit right now, I guess I’ll have to remove it and connect to it as two separate sensors, but as long as the cadence magnet for Garmin sensor doesn’t interfere with the Faveros it should all be good.

      Thanks again.

    • Ihsan

      Guys, one other question related to the edge 1030. Once I disable a “connected” sensor, does it stay in disabled status after the Edge unit is restarted, or would I have to disable it every time I restart the head unit?

      Thanks!
      Ihsan

    • It stays disabled forever, until you manually re-enable it.

    • Ihsan

      Hmm, I may have to get a new speed sensor :(.

      I received my Edge 1030 (finally those frequent flyer miles came in handy for something) and it looks like it only detects the GSC-10 if I select “Speed/Cadence” on the “Add Sensor” page. If I select “speed”, it can’t see it.

      Do you guys know of a way to add it as separate sensors?
      Thanks

    • Michal

      GSC-10 is Speed/Cadence sensor and broadcasts as such (Ant+ Bike Speed & Cadence). I don’t think you can pair it separately as Ant+ speed and Ant+ cadence sensors.

    • Ihsan

      That’s what I was afraid of 🙁

  16. Patrice Ducourtioux

    hello,

    after your test, I bought these pedals, I am completely satisfied with them however the cycling dynamics management of Garmin does not seem to be fully implemented when used with a Garmin edge 1030 on which the garmin IQ plugin displays only part of the information.
    Do you know if I can hope for a future evolution on this side?

    Thank you. Thank you.

  17. Danny

    I cannot find right position of R cleat, so I would like to increase Q factor in attempt if it helps by using 3 or maybe even 4 washers. I have Ultegra crankset And there is 3.25mm (0.246 inches) from edge of inner side of crankarm to pedal while using 3 washers, do you think it is safe?

  18. mindanalyzer

    Does anyone know if the assiomas (duo) have a top limit or does not record beyond 1000 watts, showing any larger value as 1000w?

    I never do sprints but was in the mood last week and I was surprised that the most I hit was 1000 watts and the curve clearly shows a horizontal line [it is highly unlikely that I hit the same value for that many seconds and the power curve is supposed to be rounded]

    PS: I always do the zero calibration before rides

    • Michal

      What device did you use to record the data?

    • Craig Robertson

      Yes mine go over 1000 watts, but not too often though. 🙂

    • mindanalyzer

      I usually record in both a fenix 5x and edge 520 (extended display)

      I upload the data from the Fenix 5x; this one is the strava screen capture

    • mindanalyzer

      Never mind this previous post. The issue seems to be the sub-par strava graphical representation.
      This is GC which shows the power curve 100% smooth

  19. Daniel

    Today I received version 3.43. Unfortunately no release notes on the website yet.

    • Ian

      Interesting, I checked mine and I don’t have an update. Currently on 3.0 which matches the website. New pedaling metrics maybe?

    • cg

      I received firmware 3.43 as a fix for a known problem when pairing assioma via bluetooth. It happens that on firmware 3.0 when you coasted, garmin displayed whatever power and cadence numbers you had just before coasting (instead going to zero). This happened to me on Garmin fenix 5 and just over bluetooth, ant worked just right. Learned from other users in trainerroad forums about it, opened support request to favero and they enabled this beta firmware for my pedals.

      They are able to enable it selectively based on your pedals serial numbers that´s why everybody is still on 3.0. By the way, no additional pedal metrics yet, I guess they have them disabled on purpose while still working to final release.

  20. Daniel

    Are you a beta user? Maybe that’s why I got it.

    I have a Wahoo Bolt so I don’t get the advanced dynamics. And seen that I got the update after my ride, I will have to wait till tomorrow and record it with my fenix 3 to see if it records extra data. But to be honest, I don’t think that we will get the advanced dynamics with this update – that would be more something like 4.x

  21. John

    Hello. I have had the Assioma for one week. I have used it together with my Quarq Dzero last 3 rides to compare / evaluate accuracy. I find that they measure exactly the same average on my intervals seated (TT). But: standing out of the saddle, the Assiomas measures systematically higher watts. Below is the graph from a pretty flat TT course i rode, but standing in one of the hills. Dzero vs Assioma was identically in average, but in the hill (as you see), there is a big difference. This translates to a repeated and bigger average difference when I ride intervals in hills and standing more. Which one is correct? Anyone observed this? Why is this?

    • John

      Edit: I have the Assioma Duo.

    • Michal

      Have you observed it more often and on longer intervals than 35 seconds?

    • John

      I did another run, a bit longer. Same hill twice, one time standing, one time seated. Both calibrated before start. There is a 20w difference between them. The Assiomas showing significantly lower watts when seated, despite 5sec faster time. Dzero showing a little higher watts seated on the 5sec faster time. You can argue for both beeng correct: “takes more watts to do the same hill standing” / “takes more watts to do the hill faster”. Later i did my 25min TT run, both showing excactly 292w. I find it a little disturbing that two systems that advertise their accuracy, actually shows me a 20w difference.

    • Michal

      It is hard to draw conclusions when only two sources are being compared. From the look of it Dzero power data makes more sense to me and I’d bet it’s the correct one. Maybe Assiomas are undertorqued a bit (or much)? Or there is some grease outside of the threads between spindle and crank arms? I suppose those may potentially cause some weirdness when pedaling style is more violent and less regular. Try cleaning the spindle and threads and using more torque when reinstalling.

    • Michal

      I meant cleaning spindle and crank arms, where there is no thread. Leave the threads (and only them) greased 😉

  22. Max

    Is it possible to connect the Assiomas to two different reading units? I ask because I’ve a bit of a hustle: I dont want to change my Garmin Edge 130, but it cant show power balance. My fenix 5+ on the other hand can show/log balance.
    So best case for me: Seeing my watt output on the 130 but being able to analyze the balance afterwards.

    Thank you already!

    • Karl

      Yes it is possible. I use mine connected simultaneously to Garmin FR 910XT, which I have a handlebar mount for, and to fenix 5X worn as a watch.

  23. Brian C.

    I have seen a few comments about somehow getting cycling dynamics from the Favero Assioma Duo by using a Connect IQ app with compatible Garmin computers. Where can one find this IQ app? I have searched and can’t find it. What metrics are currently supported? Are these to be expanded?

    • Ihsan

      I believe Favero will be releasing a firmware update to provide native support for ANT+ cycling dynamics without any C IQ apps.

      Ray mentioned (on another post) the update is “imminent”…

  24. Ihsan

    Just received my Favero pedals this afternoon (Thanks Ray for the review, and the CT link!).

    Just in case anyone’s worried about the clip out issues, Looks like Favero May have changed the springs (mine came with thin, black springs) and they’re quite easy to clip out of. In fact, I had to add some tension to the springs because it felt like too easy to clip out.

    My other worry, “how will they feel after 7 years of SPD-SL use?” was gone after a couple of clip ins and outs on the trainer as well. The hardest part of the day was removing the old pedals from the crank arms, seriously, I spent like 30 minutes trying to get them out. Once cranks were free of pedals, it was a breeze.

    I’m happy :)……. as long as I don’t look at the power numbers and wildly changing L-R balance..

    • Ernesider

      Read recently that Favero were offering to supply a set of replacement pedals with lighter tension springs for $100+P&P.. …!!??

    • Ihsan

      I don’t remember reading anything like that but perhaps the newer production may have switched springs perhaps.

    • WattsUp

      It’s pretty clear they realized there was a problem with the tension initially.

    • Ernesider

      Over a year and the Right Pedal is “not too bad” getting out of .. the Left is still a struggle.. They have certainly not eased as much as I expected..

  25. Eric

    I purchased these pedals through DCR/CleverTraining. They were delivered to Toronto (Canada) within 48h as I used the express shipping option.

    I second the previous comment, no issue with the clipping out, the tension seemed right to me.

    Question: I’ve used them on my electronic trainer (good old Computrainer) + Trainerroad. I did 2 25 minutes intervals @ 85% estimated FTP. The Favero consistently give me higher watts (+7-8W or about +4.5%). During the recovery/easy intervals, the difference is a bit higher +10W so now this is >10% difference.

    Is this considered acceptable? I’m not sure whether I should expect the same power numbers given that power isn’t measured at the same spot.

    Anyone with a similar experience?

    • Tim

      My KICKR v2 shows ~10W less than my DUO pedals and it seems relatively consistent. I assumed that the error is roughly within the tolerances of the devices as well as the differences in the measurement location. Plus the pedals were always on the higher side, which made sense for location being measured.

      Overall I feel like the consistency I see between KICKR and DUO to be quite good and would guess many others have much wider variation and wonder which of their devices is wrong.

      I always love to think of the joke I read somewhere once — “A man with a watch knows what time it is. A man with two watches is never sure.” (Segal’s law according to wikipedia) and how well it follows to having multiple power meters.

    • So 7-8w (or even 10w) higher isn’t super unusual for pedals over trainers, due to drivetrain loses. Of course, it depends on the wattage. If we’re talking 250w or 300w, then in my book that’s totally acceptable.

      If we’re talking 100w, then that’s tougher. Both in terms of acceptability, as well as accuracy in some cases at those wattages. Generally speaking, the higher the wattage the more accurate (at least in my experience, and in talking with companies).

      Food for thought: link to dcrainmaker.com

    • Eric

      Sadly we are not talking 300W!

      I will compare again. Pretty happy with those though. Thanks both Tim and Ray for the responses.

  26. Bruce

    Hi,
    Tried using your 10% code for these pedals at the CT site, and no discount was applied to my cart.Trying to contact CT now. Is the code in your review still valid?

    Thank you.
    Bruce

  27. Bartosz Adamczyk

    Obviously the price on these is great considering the functionality they offer and the price of the competition out there. Do we know if they’re working on a new version of these? Would like to pull the trigger on them but seeing as how these have been out for almost 2 years I’m wondering if I should hold off.

    • Rainbow Warrior

      Here is Ray’s answer dated end of April regarding the Vector 3 and the Assioma:


      I wouldn’t expect any new power meters from Garmin anytime soon. Historically Garmin has always timed announcements for power meters to Eurobike (or previously Interbike), and Favero has historically been on a two year cycle, usually timed to July (a bit before Eurobike).

      I do not know if they are news since then.

  28. Duncan Lally

    Just got the pedals (Uno). Same story as below via Clever Training UK – ordered on Monday, (“3-5 working days”, “pending shipment” on the Wednesday), phoned up and unable to tell me when they would have availability. Really wanted to support the site, but had to order via Giada at Favero – she did an expedited delivery and I had them in 2 days…Great experience so far, and thanks for the review Ray.