I have only held that type of speed for a good distance back in my racing days. Completely flat crits would see sustained speeds in the 30's for the entire race. Sounds difficult, it's not. When there is a peloton of 50-100 riders you get sucked along at stupid fast speeds with little effort. The only time I get that feeling now is when I'm running back down the coast with a 20 + knot tail wind
I will say, the sound of the tires and drive trains in a large peloton moving at that speed is truly intoxicating. It has been decades since I have experienced it and I can still remember the sound and I miss it.