I just got a Tacx Flux 2 and am starting to use Zwift. When I pair, if I pick ‘speed sensor’ it wants me to enter the tyre size, which I’m guessing would be the size of the tire that would be on my bike if it wasn’t on a smart trainer. But I can only pair the Flux under ‘power meter’ and it also pai…

How is Zwift calculating speed

Paul_Allen (Paul) January 17, 2021, 2:58pm 2

Pair your trainer as power and read this: How Does Zwift Determine My Speed?

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