Originally Posted by
burnthesheep
Don't do workouts like that in ERG. Do threshold or pursuit power or less. It's just too wild a swing too quick. Just set it into the mode where you would change gears on the bike to vary the resistance instead.
+1. Try it w/o ERG mode. I wouldn't use ERG for shorter stuff. It's controllable through the your interface app (rouvy/zwift/TR etc)
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