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Are you using a power meter or just a speed/cadence sensor and letting zpower work it out? If it's the latter then it can wildly over-estimate how much power you're putting out. Before I got my PM I used zpower to measure my FTP and it came out as 320W or something, my real FTP when I retested with a power meter was ~240W.
Colonel_of_Truth
Something has gotta be up with either my set-up or Zwift is full of shit. I did a "race" today and it said avg speed was 28mph. My trad / dumb turbo setup is an Elite trainer with cadence and speed (set on 3) on a 48x16 track bike. Even when I was in OK shape attempting C races at herne hill I dont think races ever got that fast, no way I could have done 10 miles at this pace.
So is it known dumb trainers are a great way to sandbag? Or is it that zwift races are so far beyond reality as to be silly? I understand the basic watts calculation on smart trainers appears accurate tho.
Yes @BareNecessities indeed I am going through a strange time, as we all are