I use the Wahoo Core 2 and Zwift Ride, Zwift Game on a MacBook via Bluetooth.
To compare the power measurements, I mounted my Favero Assioma RS2 pedals on the Zwift Ride. I record the data using my own Garmin Edge 530 and compare the FIT data on ZwiftPower. After manually calibrating the Core 2, the values are very similar—even the cadence, which is surprising:
I’ve only noticed that during short bursts of high power, the Core 2 displays a lower value. Of course, this is all subjective, but I assume the Favero pedals are more accurate.
My question: Does it make sense, and are there any advantages to setting the Favero pedals as the source for power and cadence in Zwift? Or does Zwift get confused with the Core 2 and the power and cadence data from the pedals?
I used to do the same as you, for me the main interest was power balance which I needed to work on back then after the stupid 2022 crash that had me in hospital and off the bike for a year.
I used to find they would drop out sometimes if I used them as the power and cadence source. Because of that I ended up keeping them paired with the Garmin and using my kickr bike as the primary power source.
I would keep using the trainer as the primary power source.
My physical therapist told me my left leg is weaker and that I should train it more specifically.
In addition to the left/right data, I find the IAV Cycling Dynamics —PCO, PP, TE, PS—t o be useful. Unfortunately, these can only be recorded by a Garmin device.
I use an old Garmin Edge with a separate Garmin account for the FIT file to ZwiftPower. This way, I don’t have duplicate data with my Garmin, Strava, and Zwift connections. I haven’t found a better solution yet.
I have an Intervals account for looking at all of the data I record from my edge units or watch.
Zwift can pull from garmin but it cannot set any data.
So I record everything with my watch or edge on Zwift, it uploads to intervals, and if I ever forget to record an activity I can download the Zwift activity and plop it into Garmin Connect and intervals pulls it in; of course that won’t have my pedal data, but it keeps TSS etc accurate.
There’s two settings for Zwift connections to Garmin, and one of them is to record rides to it; guessing the others are the same but I don’t know, I don’t use anything else.
But at least with intervals I can make my own charts and data comparisons which is why I like it.
I use Garmin Connect to log all my workouts via Garmin Edge or Forerunner. I connect Garmin Connect to Intervals, where I’ve been storing my data permanently (since 2001) and analyzing it. I connect Zwift to Intervals for all my indoor rides. I can manually remove duplicate entries in Intervals.
From Garmin via the connection to Strava and Zwift, and vice versa. I just can’t bring myself to give up Strava because of the “segments.”
Even though my indoor trainer and dual power meter provide similar overall data, I wouldn’t ride without a dual power meter if I can help it, whether indoors or outdoors.
For me, the most valuable data point is left-right power balance. Having tracked this since 2018, I’ve realized that if I’m not actively paying attention, my balance shifts way more than I’d like. It’s the ultimate tool for keeping my pedaling efficient and making sure I’m staying focused on the bike.
So, my Kickr data goes to Strava/Zwift, but I don’t really pay attention to that. My power meter is connected to Garmin Connect, which is the only data I actually check.
Who else uses dual-sided data to keep themselves honest?
Note: I would have bought already the newer Assioma PRO RL-2 set just for indoor use due to Cycling Dynamics, especially the offset data. Although I love my Favero power meters, I dislike the non-replaceable battery, especially after several of my pedals had to be replaced by Favero. Still, I think the Assioma Power meter itself is superior to any other pedal power meter.
Thanks @XavierC interesting. Since 2025, I’ve been using Favero Assioma RS2 dual-power pedals for my road bike and MX2 pedals for my MTB. In addition to power, the left/right balance and POC are important metrics.
When running, I use a Forerunner and a Garmin sensor, which also track left/right balance.
When training, I make sure to maintain an even L/R distribution, which is recorded by Garmin.
One question: What were the reasons for you to replace your Favero Assioma RL pedals?
@Robert-Wuehrer I own the Assioma DUO, not the RL. Long story short, my issues have always been with the internal batteries, not the power meters themselves.
My first set of DUOs lasted about 5 years of daily use before the batteries died. Since they were out of warranty, Favero offered me a 50% discount on a replacement set, which I thought was a fair deal.
The second set, however, started having battery issues shortly after the 2 year mark. After some patience and back and forth with Favero, they eventually replaced the pedals one at a time.
Now I am extremely careful about charging them. I actually count the charging cycles like the lives of a cat! I use my power meter multiple times a day, every day, so battery longevity is a major concern for me. The power meters themselves have been great. It is the internal batteries, and the fact that they are not user replaceable, that have been the weak point in my experience.
Thus, buying another set of RLs just to get offset data (the DUO doesn’t provide that) might be a bit wasteful, especially if I have to replace them every few years given how heavily I use my power meter. I am just hoping it was all bad lack…
Okay, so I misread that. I thought long and hard about whether to get the Garmin RS200 or the Favero Assioma RS2. However, when it came to changing the battery on the Garmin, there were reports of leakage issues. I’m really happy with the Favero Assioma RS2 and MX2. The only thing is that only Garmin supports IAV, POC, etc.
@Robert-WuehrerProbably, most users are in the same boat when deciding between Favero and Garmin.
Over time, Favero has proven to produce a superior power meter that just works; regardless of the torque applied, it remains incredibly reliable. Garmin meters are a bit trickier, requiring careful attention to installation torque, but their user-replaceable battery is a huge plus; thus, I want the offset data, but I’m not sure of the best way to get it. For now, I’m sticking with my DUOs that were recently replaced.
I strongly dislike how many brands are intentionally shifting toward non-replaceable batteries to create planned obsolescence and secure future revenue. The EU spotted this trend and introduced regulations to limit it, but they have since backed down significantly by granting major loopholes and exemptions. That is exactly why Favero can continue selling a pedal that locks out the consumer’s ability to replace the battery.
Yes, exactly—that’s my take on it, too, whenever a battery is permanently built in.
Before buying, I spoke with Favero support: They confirm that after 500 charge cycles, the battery retains at least 80% of its capacity. At about 160 operating hours per cycle, that would amount to approximately 80,000 operating hours. Let’s assume 50,000 and I ride a maximum of 2,000 hours per year > so 25 years… I’m over 65 today
On the new Garmin Edge 850, the battery is very easy to replace in accordance with EU regulations.
