Couldn't you just put the hidden seat clamp on the front of the seat tube instead of the back? That way there is not need to make something to cover it up.
I could do that. But in this case I am going for the protruding capped tube idea. But could be fun to do on aero roadbikes
@Hulsroy started
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Couldn't you just put the hidden seat clamp on the front of the seat tube instead of the back? That way there is not need to make something to cover it up.