I have no idea how folks ride a road bike on a snowpacked/icy road. Very carefully I guess. Yesterday my bf and I went up to the Colorado National Monument visitors center (in the car). The CNM road, Rimrock Drive, is a very popular road ride in the spr/su/fall, but usually sees some snow in the winter. We saw two cyclists up there. I thought they might be on cx bikes. Nope, road bikes. Saw one head down the road to the descent to town. We drive down that road a while later. The road had many long patches of packed snow, some icy spots. No idea how that road bike made it down that road.
This is the lower part of Rimrock Drive, on the Fruita side of the Monument. View is facing north. The part of the road on the left side of the picture was clear and dry yesterday, it gets winter sun part of the day. All of the road on the right side of the view, in shadow in the winter, was hardpacked snow/ice.