My fastest 40km on Zwift’s ‘Volcano Flat’ route…
It gives 147 meters of elevation gain.
I was on the Tron bike and done on the second half of my 100km TT – 21 seconds faster than the first half 40km. And i made in the top 40%, which i don’t think is too bad for a 53 year old who only weighs 113 lb on a really flat course in the second half of a 100km TT.
It starts at the the start banner.