Sorry, you responded to my post but I had already deleted it because I wasn't really adding anything to the discussion.
For a reference point, I did a mostly flat, mostly windless TT on a hot day, on a road bike and averaged 275 watts and 25.1 mph. But there are so many other factors that comparing speed is almost as pointless as asking what average speed you need to win a race. I'm sure we could both improve our CdA.