Not to Chris specifically.
Tried searching but didn't get anything - is there any aero data with the speed box? Better with or without? The setup I've got lends itself to not needing it for flat storage- but would keep if aero benefit. I'm guessing not as it is kinda large and wider than the seat tube.
Anyone know or can direct me where this info is posted?
I did not check out the document that was linked to, but my understanding is that it is better with the "draft box", and that with the speedbox on the top tube it is pretty much the same or better.