I have an Edge 530 and the Assiomo pedals. Here is what is being reported on Garmin Connect. I don't look at that information during a race so I have no idea if it's displayed dynamically.

Perfect, thanks very much!

Yup, this is part of the Cycling Dynamics (ANT+ variant as well as pre-open standard Garmin Vector variant). These days Favero Assioma supports it, but not the PowerTap pedals (and who knows what Quarq's plans are there, though Jim at Quarq is usually all about ANT+ standards, so I've gotta believe in a P3 pedal or whatever it'll be supported).

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My tiny little slice of the internets: dcrainmaker.com

Thanks Ray!

Interesting

Your power phase and peak phase end later than mine. But start later so end up the same # of degrees

Where you sitting or aero? I was sitting the entire time