Changing relative measurement and direction of bottle cages
How (or can) the reference point for measuring the position of watter bottle drillings (to be used for a direct mount top tube bag in this case) be changed to reference the headtube delta instead of from the seat post? Similarly, when a cage is positioned, can it's direction be reversed (eg to "point" in the other direction for instance for the top of the bottle to be positioned facing the seat tube or vice versa when there's the bottle cage on the top of the top tube.
