Hi, Does anyone here have this power meter? Is it any good?
GP Lama reviewed the Magene P505 in his youtube channel. He seemed quite impressed, though there are some dissenting voices in the comments, I think.
Robert
I bought mine a month ago and received it 3 days ago. I am after one indoor ride. I compared it to the Elite Suito-T (indoor trainer) and Inpeak power meter (left crank). After this one ride i could say it overestimated power for 3-7%. Avarage power from 1.5h ride - Suito-T - 219.3, Inpeak - 219.8, Magene - 229.3
Im pretty sure that you can scale it down?
Yes it looks perfect in his video, 80% say that it is good and perferct and there is other 20% which have had some issues
Yes, I can scale it down. But I’ll do another test today or tomorrow. I was surprised that Inpeak and Suito-T showed almost the same power output, whereas previously when I compared them, Inpeak always had an underestimated (10-20W) power when I was riding at 150-180W and an overestimated (10-30W) power when I was riding at 300-350W. But I realized that yesterday I connected the Inpeak to the Wahoo Fitness app on my phone, and before that I always connected it to the Garmin Edge 810. So I’m wondering if the Garmin Edge 810 has a power mess. In the next test I will connect Magene to the phone and Inpeak to the Garmin Edge 810 and let you know.
@Adrian_Korzeniowski DCRainmaker’s analyser tool (which i think GPLama uses) is useful for comparing power meters. I’ve done this with pairwise comparisons (having two Garmins to record two power meters), you can get a good idea of any differences in responsiveness which are possibly as important if not more important than measuring average power.
There’s another free tool to do that:
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I always thought that my suito t reads a bit low, 300 on favero assioma easy af and then extremely hard on suito.
Couple of points:
*Your Assioma are at the the front of the drivetrain, your Suito at the back. Depending on how efficient your drivetrain is expect anywhere between 2 and 5% difference.
- If you are comparing the Assiomas outdoors and the Suito indoors, a lot people can not put out the same power indoors as the can outdoors. For me it is close to 10% difference (most other people far less) and due to fixed position of trainer and airflow (even with two fans).
I want to buy this powermeter that it is imprest me especially for price, so ı just wonder that they said measure power both legs but ı dont understand how…any idea?
I’ve the Magene P505 base on my commute-bike for several weeks now – got it with black-week discount directly from China for 223 € including all:-)
It agrees to my Favero Assiomas to <2 % throughout and also shows the same dynamics. For heath reasons I cannot really go to sprint-powers right now, but in all I do on the road or an extended commute ride it works very reliably for me. And handling is super-easy, too.
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I assume they have multiple strain gauges and from these the software figures out at which part of the rotation the force is/was applied… as they know where these individual gauges are on the crank, they know which foot/side was forward…
More interestingly, even my trainer (Direto XR) estimates L/R balance, and it does so pretty well when given absolute L/R contributions via a wired left-side cadence sensor:-o)
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Hi everyone!
Does anyone here have experience with the Magene PES P505 Base power meter on a BB386 bottom bracket? I’ve noticed that Magene now states it isn’t compatible with BB386 bottom brackets, but I recently saw a YouTube video where someone used this setup successfully. Can anyone confirm if it actually works with a BB386 bottom bracket?
Thanks in advance for your help!
Davor, the Magene PES P505 works just fine on my Orbea Orca, which has a BB386 bottom bracket. I could swap the original 105 crankset for the Magene without any problems. I had to adjust the front derailleur afterwards, but that’s not surprising.
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Thank you. That’s exactly the setup I’m looking for. I have both the Orbea Orca and the power meter on the way, expected to arrive next week. I was concerned about mounting it on a new bike due to the manufacturer’s warning. Thanks!
I had it for over a month, many rides.
I did a few side-by-side with Neo trainer on the watch and power meter on the bike computer. Both easy/stable as well as hard efforts. The power was super consistent with the trainer but needed some scaling (can’t remember if it was too low or two high). After scaling it is almost perfectly the same as the trainer.
(I realize that power at the crank is different than at the wheel, but I wanted consistent numbers indoors/outdoors)
Installation on a Shimano BB (replacing ultegra cranckset) is very simple, takes about 10 minutes, and requires zero technical knowledge (there are a few YT howto videos)
So for me its incredible value for the price.
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Did the power meter fit the Orbea and did you order with Magene chainrings or without? I also have an Orca and would like to know before ordering.
It fits well, and I used the 105 chainrings that came with the bike. Installation was straightforward with the right tools. I did need to adjust the front derailleur afterward. Also, the bottom bracket on the non-drive side is slightly more exposed than usual, but that’s fine.
It reads a bit higher than my 4iiii one-sided power meter, but it’s approximately the same as my Elite Suito indoor trainer.
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