Elite men's and women's time trials to be raced over the same route and distance.
The young Italian rewrote all the best intermediate times en route to his first elite men's time trial win.
Defending world champion Chloe Dygert crashed out just after the intermediate time check.
The 45-year old won gold in 2008 and 2016. 2020 marks her 16th appearance at the UCI road world championships.