No, but it looks really simple. The guys at Assioma referred me to this video to help me replace the spindle. The video is all about bearing replacement with the spindle being a small part of it.
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Right my favero and turbo… Which were near identical, are now miles apart.
Favero linked to Garmin
H3 to zwift
Calibrated both. No change. Other than software updates that I could roll back. Anything else I can do?
If they had always been different Id maybe live with it… but the fact they were so comparable, is somewhat annoying.
What’s “miles” out of interest?
Did you change anything? Are you able to identify, just via RPE, which one might be the one that has deviated? My personal experience would say that it’s more likely a trainer that would go out of alignment, as there’s so many bits going on internally. A belt slip/crack/tear, or something like that.
30+ watts minimum. This is just ticking along in the 100-200 range.
Well I’ve lived on the turbo for 6 months…so that feels normal.
A ride outside on TT with the faveros 140watts was giving me well over 30kmph.
210watts was close to 40kmph.
What’s changed…
Firmware updates
Different bike computer (did check old one… Same. Also remembered crank settings)
Pedals swapped from roadie to TT (calibration done on app and on bike comp)
Not sure of anything else
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Hmmm, weird. Anyone you know with a crank based power meter you could stick the pedals on for 5 mins to add a third data point to the mix? Obviously potentially more tricky with Covid. A powertap rear hub would also be an option to compare directly to the pedals, but you could only use that outside obviously
Just put bike on wife’s Flux.
Not touched anything else. Pedals reading 30+ watts under that as well.
With pedals expected to be slightly higher, perceived effort and 2 turbos reading same. Everything pointing at pedals for me.
2 firmware updates since I last used them with comparable results
Is the crank length the same?
No but altered that on bike computer settings. Is there anything else I needed to have done?
Just going to put them back on roadie, put that back on turbo and see if suddenly magicly correct.
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The actual pedal needs to know I think, but I thought the garmin was supposed to tell it, not sure how though never used pedal based - is the percentage out the right sort of number for this? (having 170 to 175 would be 5/170 or 3% difference?) it sounds like it’s more anyway - but I wonder if it could still be a mis-entered length in the garmin?
172.5 and 175 … But I had the same thought process. Seemed alot out if it was that.
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Right back on roadie.
Crank length changed in assioma app and bike comp back to 172.5 and more reading 10-15 watts under.
How has it changed !?!?
Settled down a bit now its been on a day… DC Rainmaker suggests everything needs a good run. Must remember that if swapping pedals to give em a blast before anything important;
Not as close as previous - but a bit more acceptable
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How do you go about comparing the two?
I’m considering - I hate committing to it - a ftp test tomorrow & would like to compare my Assioma with my guesstimating Kinetic inRide Power system.
Turbo paired with zwift.
Pedals paired to Garmin.
Basically you need 2 .fit files.
Then on zwiftpower there’s an analysis tab on your profile. Upload the 2, bit of crop and time offset to align and job done.
It’s dead simple, 5 minutes max when you have both files.
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Yeah, he always says you need to do a few max sprints after a pedal swap, just to let everything settle.
With my data, the H3 and P2M are now much more in line, and least for the longer steady state stuff I mostly care about. This is from the ZRL TTT last night. Beyond 15s, everything is easily within the +/- 1% that both devices would list as spec
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Ok, I’m not on Zwift so I had to do it old skool. Garmin was paired to the Kinetic inRide & Wahoo Bolt paired to my Assioma & I hit the lap button on the Garmin to coincide with some of the pre-programmed laps on the Wahoo. There was a fair bit of time spent fannying about pairing & calibrating/zeroing.
At one point I put my Assioma into travel mode to stop interference, not realising I had to connect it to the power lead to reactivate. Glad I was at home
The results were, Assioma v inRide:
268 v 275
118 v 121
327 v 334
113 v 117
296 v 308
So the inRide is about 3% more generous than the Assioma which is fairly good for a guesstimating system.
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My pedals really dont like being on the TT;
Changed bike computer crank length … they might need some more “bedding in” - but warm up + an hour and still miles apart across the board is not great 
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These should be right up my street as I use spd pedals on all my bikes but the price means it’s a no from me.
NB. Interesting comment about converting Faveros to SPD though, that may warrant further investigation if/when one of my PMs craps out.
GPLama has a couple of videos on how to do it. Seems very straightforward. One video is a year or so old. He did an update recently…
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If you look at my Analysis page on Zwfit Power, the earlier readings comparing my Assioma’s with Tacx Neo 2T consistently showed the Assioma’s around 4-5% Higher than the Neo 2T. After the update, My Assioms read +/- 0.5% of Neo 2T. Clearly the auto calibration has had and impact and has reduced the power reading on the Assioma