Hi anyone know why my power is so erratic jumps 10 to 20 watts with same effort .steady cadence has power graph bottom of screen jump different colour bands never a nice steady colour block
10 to 20 wattts jump isn’t very much. It’s impossible to maintain 100% steady power with no variances, though some trainers in ERG mode use a smoothing function to lie to you about your power so that it does look rock-steady.
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Zwift shows you what your trainer tells it. If your power is erratic on the trainer, it will be erratic in Zwift. You do have the option of going into settings and selecting 3 second average for displayed power, but that does not change anything about how your power is transmitted and received or whether it’s erratic - it just changes how it’s displayed.
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