I really love the idea of equipment selection being part of your race strategy. It is now worth investigating to swap from your roadbike to a mountainbike midrace when you go through gravelsections.
The downside is that this involves quickly coming to a stop and swap as soon as possible. So it involves getting rid of sweat on your clumsy hands and quickly clicking the right bike/wheels… which is not what racing should be about in my opinion.
It would be nice if you can select 2 bike setups prior to a race and swap them on the fly via an ingame command or hotkey. Ofcourse you will get a time penalty for that so youre forced to stand still for an x amount of time and start powering from 0watts. Perhaps some animation would load that shows you going to the side of the road and an ingame mechanic comes running with your spare/alternate bike and give you a little push or something.
This would spice up racing a lot in my opinion. In some situations you could benefit of a bikeswap other times it isnt worth losing the draft of the group youre in.