thanks! I'll head there today! I mistakenly referred to my clearance issue as with the "downtube" whereas it is the seat stay member that caused the interference with the Tubus rack. The Cannondale stock rack took care of that by their broad mating surface on the rack. The Tubus cargo is by all means a sturdier rack, but I just don't like employing all sorts of shims and spacers and bailing wire to make things fit right. Sometimes it's impossible not to, but I prefer finding something a little closer.