I have personally never seen anyone, at any time, post a road ride with a 26-27mph average speed-- including Zwift. Even pro races seem to average around 25mph, and that's a peleton of 150+ of the world's best cyclists. Closed course time trial by a pro? Absolutely. Closed course criterium? Sure.
But for a recreational road rider, a ride averaging +19mph is in the top 1% of people out there.
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