The Scicon Aerotech Evolution X TSA hard case is a great road bike option. Hard case protection, light, and smaller than both the new EVOC and also the old EVOC bags. It also rolls extremely well. On my 56cm Trek Emonda I can leave the bars on, but loosen the stem and turn them down.
I’ve tried a bunch of different bags including the biknd helium, Thule Hardcase, and Evoc Pro. For road bike the Scicon has been the easiest for both packing but also for convenience and ease of traveling with.