Don’t trust any power reading you are getting from the Snap. Trust only your power meter. I’ve had 2 Snaps and power accuracy is a joke compared to my 4iii power meter i.e. up to 100 or more watts out depending on how hard I’m going. Ended up getting a refund. My Hammer trainer now agrees reasonably well with the 4iii power meter and my newer Assioma Duo power meter pedals.
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